X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/65d877d2b74ede91db174d57d8498fee5c2e3e59..50c538600e7586c256fe0145ac8054f045be6fbb:/docs/latex/wx/function.tex?ds=sidebyside diff --git a/docs/latex/wx/function.tex b/docs/latex/wx/function.tex index 337fd06c4d..5d553b30d0 100644 --- a/docs/latex/wx/function.tex +++ b/docs/latex/wx/function.tex @@ -2,13 +2,14 @@ \setheader{{\it CHAPTER \thechapter}}{}{}{}{}{{\it CHAPTER \thechapter}}% \setfooter{\thepage}{}{}{}{}{\thepage} -The functions and macros defined in wxWindows are described here: you can +The functions and macros defined in wxWidgets are described here: you can either look up a function using the alphabetical listing of them or find it in the corresponding topic. \section{Alphabetical functions and macros list} \helpref{CLASSINFO}{classinfo}\\ +\helpref{copystring}{copystring}\\ \helpref{DECLARE\_ABSTRACT\_CLASS}{declareabstractclass}\\ \helpref{DECLARE\_APP}{declareapp}\\ \helpref{DECLARE\_CLASS}{declareclass}\\ @@ -20,55 +21,67 @@ the corresponding topic. \helpref{IMPLEMENT\_CLASS}{implementclass}\\ \helpref{IMPLEMENT\_DYNAMIC\_CLASS2}{implementdynamicclass2}\\ \helpref{IMPLEMENT\_DYNAMIC\_CLASS}{implementdynamicclass}\\ +\helpref{wxCONCAT}{wxconcat}\\ \helpref{WXDEBUG\_NEW}{debugnew}\\ \helpref{WXTRACELEVEL}{tracelevel}\\ \helpref{WXTRACE}{trace}\\ -\helpref{copystring}{copystring}\\ +\helpref{wxASSERT\_MIN\_BITSIZE}{wxassertminbitsize}\\ \helpref{wxASSERT\_MSG}{wxassertmsg}\\ \helpref{wxASSERT}{wxassert}\\ \helpref{wxBITMAP}{wxbitmapmacro}\\ \helpref{wxBeginBusyCursor}{wxbeginbusycursor}\\ \helpref{wxBell}{wxbell}\\ +\helpref{wxCHECK}{wxcheck}\\ \helpref{wxCHECK2\_MSG}{wxcheck2msg}\\ \helpref{wxCHECK2}{wxcheck2}\\ +\helpref{wxCHECK\_GCC\_VERSION}{wxcheckgccversion}\\ \helpref{wxCHECK\_MSG}{wxcheckmsg}\\ \helpref{wxCHECK\_RET}{wxcheckret}\\ \helpref{wxCHECK\_VERSION}{wxcheckversion}\\ -\helpref{wxCHECK}{wxcheck}\\ +\helpref{wxCHECK\_VERSION\_FULL}{wxcheckversionfull}\\ +\helpref{wxCHECK\_W32API\_VERSION}{wxcheckw32apiversion}\\ \helpref{wxClientDisplayRect}{wxclientdisplayrect}\\ -\helpref{wxClipboardOpen}{wxclipboardopen}\\ +\helpref{wxClipboardOpen}{functionwxclipboardopen}\\ \helpref{wxCloseClipboard}{wxcloseclipboard}\\ \helpref{wxColourDisplay}{wxcolourdisplay}\\ +\helpref{wxCOMPILE\_TIME\_ASSERT}{wxcompiletimeassert}\\ +\helpref{wxCOMPILE\_TIME\_ASSERT2}{wxcompiletimeassert2}\\ \helpref{wxConcatFiles}{wxconcatfiles}\\ \helpref{wxConstCast}{wxconstcast}\\ \helpref{wxCopyFile}{wxcopyfile}\\ \helpref{wxCreateDynamicObject}{wxcreatedynamicobject}\\ \helpref{wxCreateFileTipProvider}{wxcreatefiletipprovider}\\ +\helpref{wxCRIT\_SECT\_DECLARE}{wxcritsectdeclare}\\ +\helpref{wxCRIT\_SECT\_DECLARE\_MEMBER}{wxcritsectdeclaremember}\\ +\helpref{wxCRIT\_SECT\_LOCKER}{wxcritsectlocker}\\ +\helpref{wxCRITICAL\_SECTION}{wxcriticalsectionmacro}\\ % wxcs already taken! \helpref{wxDDECleanUp}{wxddecleanup}\\ \helpref{wxDDEInitialize}{wxddeinitialize}\\ \helpref{wxDROP\_ICON}{wxdropicon}\\ \helpref{wxDebugMsg}{wxdebugmsg}\\ -\helpref{wxDirExists}{wxdirexists}\\ +\helpref{wxDirExists}{functionwxdirexists}\\ \helpref{wxDirSelector}{wxdirselector}\\ \helpref{wxDisplayDepth}{wxdisplaydepth}\\ -\helpref{wxDisplaySizeMM}{wxdisplaysizemm}\\ -\helpref{wxDisplaySize}{wxdisplaysize}\\ \helpref{wxDisplaySize}{wxdisplaysize}\\ +\helpref{wxDisplaySizeMM}{wxdisplaysizemm}\\ \helpref{wxDos2UnixFilename}{wxdos2unixfilename}\\ \helpref{wxDynamicCastThis}{wxdynamiccastthis}\\ \helpref{wxDynamicCast}{wxdynamiccast}\\ +\helpref{wxDYNLIB\_FUNCTION}{wxdynlibfunction}\\ \helpref{wxEmptyClipboard}{wxemptyclipboard}\\ \helpref{wxEnableTopLevelWindows}{wxenabletoplevelwindows}\\ \helpref{wxEndBusyCursor}{wxendbusycursor}\\ +\helpref{wxENTER\_CRIT\_SECT}{wxentercritsect}\\ \helpref{wxEntry}{wxentry}\\ \helpref{wxEnumClipboardFormats}{wxenumclipboardformats}\\ \helpref{wxError}{wxerror}\\ \helpref{wxExecute}{wxexecute}\\ \helpref{wxExit}{wxexit}\\ +\helpref{wxEXPLICIT}{wxexplicit}\\ \helpref{wxFAIL\_MSG}{wxfailmsg}\\ \helpref{wxFAIL}{wxfail}\\ \helpref{wxFatalError}{wxfatalerror}\\ -\helpref{wxFileExists}{wxfileexists}\\ +\helpref{wxFileExists}{functionwxfileexists}\\ \helpref{wxFileModificationTime}{wxfilemodificationtime}\\ \helpref{wxFileNameFromPath}{wxfilenamefrompath}\\ \helpref{wxFileSelector}{wxfileselector}\\ @@ -79,7 +92,9 @@ the corresponding topic. \helpref{wxFindWindowAtPoint}{wxfindwindowatpoint}\\ \helpref{wxFindWindowByLabel}{wxfindwindowbylabel}\\ \helpref{wxFindWindowByName}{wxfindwindowbyname}\\ +\helpref{wxFinite}{wxfinite}\\ \helpref{wxGetActiveWindow}{wxgetactivewindow}\\ +\helpref{wxGetApp}{wxgetapp}\\ \helpref{wxGetClipboardData}{wxgetclipboarddata}\\ \helpref{wxGetClipboardFormatName}{wxgetclipboardformatname}\\ \helpref{wxGetColourFromUser}{wxgetcolourfromuser}\\ @@ -94,6 +109,7 @@ the corresponding topic. \helpref{wxGetFullHostName}{wxgetfullhostname}\\ \helpref{wxGetHomeDir}{wxgethomedir}\\ \helpref{wxGetHostName}{wxgethostname}\\ +\helpref{wxGetKeyState}{wxgetkeystate}\\ \helpref{wxGetLocalTimeMillis}{wxgetlocaltimemillis}\\ \helpref{wxGetLocalTime}{wxgetlocaltime}\\ \helpref{wxGetMousePosition}{wxgetmouseposition}\\ @@ -112,12 +128,14 @@ the corresponding topic. \helpref{wxGetPrinterPreviewCommand}{wxgetprinterpreviewcommand}\\ \helpref{wxGetPrinterScaling}{wxgetprinterscaling}\\ \helpref{wxGetPrinterTranslation}{wxgetprintertranslation}\\ +\helpref{wxGetProcessId}{wxgetprocessid}\\ \helpref{wxGetResource}{wxgetresource}\\ \helpref{wxGetSingleChoiceData}{wxgetsinglechoicedata}\\ \helpref{wxGetSingleChoiceIndex}{wxgetsinglechoiceindex}\\ \helpref{wxGetSingleChoice}{wxgetsinglechoice}\\ \helpref{wxGetTempFileName}{wxgettempfilename}\\ \helpref{wxGetTextFromUser}{wxgettextfromuser}\\ +\helpref{wxGetTopLevelParent}{wxgettoplevelparent}\\ \helpref{wxGetTranslation}{wxgettranslation}\\ \helpref{wxGetUTCTime}{wxgetutctime}\\ \helpref{wxGetUserHome}{wxgetuserhome}\\ @@ -135,9 +153,13 @@ the corresponding topic. \helpref{wxIsAbsolutePath}{wxisabsolutepath}\\ \helpref{wxIsBusy}{wxisbusy}\\ \helpref{wxIsClipboardFormatAvailable}{wxisclipboardformatavailable}\\ +\helpref{wxIsDebuggerRunning}{wxisdebuggerrunning}\\ \helpref{wxIsEmpty}{wxisempty}\\ +\helpref{wxIsMainThread}{wxismainthread}\\ +\helpref{wxIsNaN}{wxisnan}\\ \helpref{wxIsWild}{wxiswild}\\ \helpref{wxKill}{wxkill}\\ +\helpref{wxLEAVE\_CRIT\_SECT}{wxleavecritsect}\\ \helpref{wxLoadUserResource}{wxloaduserresource}\\ \helpref{wxLogDebug}{wxlogdebug}\\ \helpref{wxLogError}{wxlogerror}\\ @@ -148,9 +170,13 @@ the corresponding topic. \helpref{wxLogTrace}{wxlogtrace}\\ \helpref{wxLogVerbose}{wxlogverbose}\\ \helpref{wxLogWarning}{wxlogwarning}\\ +\helpref{wxLL}{wxll}\\ +\helpref{wxLongLongFmtSpec}{wxlonglongfmtspec}\\ \helpref{wxMakeMetafilePlaceable}{wxmakemetafileplaceable}\\ \helpref{wxMatchWild}{wxmatchwild}\\ \helpref{wxMessageBox}{wxmessagebox}\\ +\helpref{wxMilliSleep}{wxmillisleep}\\ +\helpref{wxMicroSleep}{wxmicrosleep}\\ \helpref{wxMkdir}{wxmkdir}\\ \helpref{wxMutexGuiEnter}{wxmutexguienter}\\ \helpref{wxMutexGuiLeave}{wxmutexguileave}\\ @@ -158,6 +184,7 @@ the corresponding topic. \helpref{wxNow}{wxnow}\\ \helpref{wxOnAssert}{wxonassert}\\ \helpref{wxOpenClipboard}{wxopenclipboard}\\ +\helpref{wxParseCommonDialogsFilter}{wxparsecommondialogsfilter}\\ \helpref{wxPathOnly}{wxpathonly}\\ \helpref{wxPostDelete}{wxpostdelete}\\ \helpref{wxPostEvent}{wxpostevent}\\ @@ -165,18 +192,8 @@ the corresponding topic. \helpref{wxRegisterId}{wxregisterid}\\ \helpref{wxRemoveFile}{wxremovefile}\\ \helpref{wxRenameFile}{wxrenamefile}\\ -\helpref{wxResourceAddIdentifier}{wxresourceaddidentifier}\\ -\helpref{wxResourceClear}{wxresourceclear}\\ -\helpref{wxResourceCreateBitmap}{wxresourcecreatebitmap}\\ -\helpref{wxResourceCreateIcon}{wxresourcecreateicon}\\ -\helpref{wxResourceCreateMenuBar}{wxresourcecreatemenubar}\\ -\helpref{wxResourceGetIdentifier}{wxresourcegetidentifier}\\ -\helpref{wxResourceParseData}{wxresourcedata}\\ -\helpref{wxResourceParseFile}{wxresourceparsefile}\\ -\helpref{wxResourceParseString}{wxresourceparsestring}\\ -\helpref{wxResourceRegisterBitmapData}{registerbitmapdata}\\ -\helpref{wxResourceRegisterIconData}{wxresourceregistericondata}\\ \helpref{wxRmdir}{wxrmdir}\\ +\helpref{wxSafeShowMessage}{wxsafeshowmessage}\\ \helpref{wxSafeYield}{wxsafeyield}\\ \helpref{wxSetClipboardData}{wxsetclipboarddata}\\ \helpref{wxSetCursor}{wxsetcursor}\\ @@ -193,11 +210,13 @@ the corresponding topic. \helpref{wxSetWorkingDirectory}{wxsetworkingdirectory}\\ \helpref{wxShell}{wxshell}\\ \helpref{wxShowTip}{wxshowtip}\\ +\helpref{wxShutdown}{wxshutdown}\\ \helpref{wxSleep}{wxsleep}\\ \helpref{wxSnprintf}{wxsnprintf}\\ \helpref{wxSplitPath}{wxsplitfunction}\\ \helpref{wxStartTimer}{wxstarttimer}\\ \helpref{wxStaticCast}{wxstaticcast}\\ +\helpref{wxStrcmp}{wxstrcmp}\\ \helpref{wxStricmp}{wxstricmp}\\ \helpref{wxStringEq}{wxstringeq}\\ \helpref{wxStringMatch}{wxstringmatch}\\ @@ -205,13 +224,13 @@ the corresponding topic. \helpref{wxStrlen}{wxstrlen}\\ \helpref{wxSysErrorCode}{wxsyserrorcode}\\ \helpref{wxSysErrorMsg}{wxsyserrormsg}\\ -\helpref{wxToLower}{wxtolower}\\ -\helpref{wxToUpper}{wxtoupper}\\ +\helpref{wxT}{wxt}\\ \helpref{wxTraceLevel}{wxtracelevel}\\ \helpref{wxTrace}{wxtrace}\\ \helpref{wxTransferFileToStream}{wxtransferfiletostream}\\ \helpref{wxTransferStreamToFile}{wxtransferstreamtofile}\\ \helpref{wxTrap}{wxtrap}\\ +\helpref{wxULL}{wxull}\\ \helpref{wxUninitialize}{wxuninitialize}\\ \helpref{wxUnix2DosFilename}{wxunix2dosfilename}\\ \helpref{wxUnsetEnv}{wxunsetenv}\\ @@ -219,38 +238,59 @@ the corresponding topic. \helpref{wxVsnprintf}{wxvsnprintf}\\ \helpref{wxWakeUpIdle}{wxwakeupidle}\\ \helpref{wxWriteResource}{wxwriteresource}\\ -\helpref{wxYield}{wxyield} +\helpref{wxYield}{wxyield}\\ +\helpref{wx\_const\_cast}{wxconstcastraw}\\ +\helpref{wx\_static\_cast}{wxstaticcastraw}\\ +\helpref{\_}{underscore}\\ +\helpref{\_T}{underscoret} + + \section{Version macros}\label{versionfunctions} -The following constants are defined in wxWindows: +The following constants are defined in wxWidgets: \begin{itemize}\itemsep=0pt -\item {\tt wxMAJOR\_VERSION} is the major version of wxWindows -\item {\tt wxMINOR\_VERSION} is the minor version of wxWindows +\item {\tt wxMAJOR\_VERSION} is the major version of wxWidgets +\item {\tt wxMINOR\_VERSION} is the minor version of wxWidgets \item {\tt wxRELEASE\_NUMBER} is the release number +\item {\tt wxSUBRELEASE\_NUMBER} is the subrelease number which is $0$ for all +official releases \end{itemize} -For example, the values or these constants for wxWindows 2.1.15 are 2, 1 and +For example, the values or these constants for wxWidgets 2.1.15 are 2, 1 and 15. Additionally, {\tt wxVERSION\_STRING} is a user-readable string containing -the full wxWindows version and {\tt wxVERSION\_NUMBER} is a combination of the +the full wxWidgets version and {\tt wxVERSION\_NUMBER} is a combination of the three version numbers above: for 2.1.15, it is 2115 and it is 2200 for -wxWindows 2.2. +wxWidgets 2.2. + +The subrelease number is only used for the sources in between official releases +and so normally is not useful. \wxheading{Include files} or + +\membersection{wxCHECK\_GCC\_VERSION}\label{wxcheckgccversion} + +\func{bool}{wxCHECK\_GCC\_VERSION}{\param{}{major, minor, release}} + +Returns $1$ if the compiler being used to compile the code is GNU C++ +compiler (g++) version major.minor.release or greater. Otherwise, and also if +the compiler is not GNU C++ at all, returns $0$. + + \membersection{wxCHECK\_VERSION}\label{wxcheckversion} \func{bool}{wxCHECK\_VERSION}{\param{}{major, minor, release}} -This is a macro which evaluates to true if the current wxWindows version is at +This is a macro which evaluates to true if the current wxWidgets version is at least major.minor.release. -For example, to test if the program is compiled with wxWindows 2.2 or higher, +For example, to test if the program is compiled with wxWidgets 2.2 or higher, the following can be done: \begin{verbatim} @@ -265,38 +305,58 @@ the following can be done: } \end{verbatim} + +\membersection{wxCHECK\_VERSION\_FULL}\label{wxcheckversionfull} + +\func{bool}{wxCHECK\_VERSION\_FULL}{\param{}{major, minor, release, subrel}} + +Same as \helpref{wxCHECK\_VERSION}{wxcheckversion} but also checks that +\texttt{wxSUBRELEASE\_NUMBER} is at least \arg{subrel}. + + +\membersection{wxCHECK\_W32API\_VERSION}\label{wxcheckw32apiversion} + +\func{bool}{wxCHECK\_GCC\_VERSION}{\param{}{major, minor, release}} + +Returns $1$ if the version of w32api headers used is major.minor.release or +greater. Otherwise, and also if we are not compiling with mingw32/cygwin under +Win32 at all, returns $0$. + + + \section{Application initialization and termination}\label{appinifunctions} The functions in this section are used on application startup/shutdown and also to control the behaviour of the main event loop of the GUI programs. + \membersection{::wxEntry}\label{wxentry} -This initializes wxWindows in a platform-dependent way. Use this if you -are not using the default wxWindows entry code (e.g. main or WinMain). For example, -you can initialize wxWindows from an Microsoft Foundation Classes application using +This initializes wxWidgets in a platform-dependent way. Use this if you +are not using the default wxWidgets entry code (e.g. main or WinMain). For example, +you can initialize wxWidgets from an Microsoft Foundation Classes application using this function. \func{void}{wxEntry}{\param{HANDLE}{ hInstance}, \param{HANDLE}{ hPrevInstance}, - \param{const wxString\& }{commandLine}, \param{int}{ cmdShow}, \param{bool}{ enterLoop = TRUE}} + \param{const wxString\& }{commandLine}, \param{int}{ cmdShow}, \param{bool}{ enterLoop = true}} -wxWindows initialization under Windows (non-DLL). If {\it enterLoop} is FALSE, the -function will return immediately after calling wxApp::OnInit. Otherwise, the wxWindows +wxWidgets initialization under Windows (non-DLL). If {\it enterLoop} is false, the +function will return immediately after calling wxApp::OnInit. Otherwise, the wxWidgets message loop will be entered. \func{void}{wxEntry}{\param{HANDLE}{ hInstance}, \param{HANDLE}{ hPrevInstance}, \param{WORD}{ wDataSegment}, \param{WORD}{ wHeapSize}, \param{const wxString\& }{ commandLine}} -wxWindows initialization under Windows (for applications constructed as a DLL). +wxWidgets initialization under Windows (for applications constructed as a DLL). \func{int}{wxEntry}{\param{int}{ argc}, \param{const wxString\& *}{argv}} -wxWindows initialization under Unix. +wxWidgets initialization under Unix. \wxheading{Remarks} -To clean up wxWindows, call wxApp::OnExit followed by the static function -wxApp::CleanUp. For example, if exiting from an MFC application that also uses wxWindows: +To clean up wxWidgets, call wxApp::OnExit followed by the static function +wxApp::CleanUp. For example, if exiting from an MFC application that also uses wxWidgets: \begin{verbatim} int CTheApp::ExitInstance() @@ -313,18 +373,36 @@ int CTheApp::ExitInstance() + + +\membersection{::wxGetApp}\label{wxgetapp} + +\func{wxAppDerivedClass\&}{wxGetApp}{\void} + +This function doesn't exist in wxWidgets but it is created by using +the \helpref{IMPLEMENT\_APP}{implementapp} macro. Thus, before using it +anywhere but in the same module where this macro is used, you must make it +available using \helpref{DECLARE\_APP}{declareapp}. + +The advantage of using this function compared to directly using the global +wxTheApp pointer is that the latter is of type {\tt wxApp *} and so wouldn't +allow you to access the functions specific to your application class but not +present in wxApp while wxGetApp() returns the object of the right type. + + \membersection{::wxHandleFatalExceptions}\label{wxhandlefatalexceptions} -\func{bool}{wxHandleFatalExceptions}{\param{bool}{ doIt = TRUE}} +\func{bool}{wxHandleFatalExceptions}{\param{bool}{ doIt = true}} -If {\it doIt} is TRUE, the fatal exceptions (also known as general protection +If {\it doIt} is true, the fatal exceptions (also known as general protection faults under Windows or segmentation violations in the Unix world) will be caught and passed to \helpref{wxApp::OnFatalException}{wxapponfatalexception}. By default, i.e. before this function is called, they will be handled in the normal way which usually just means that the application will be terminated. -Calling wxHandleFatalExceptions() with {\it doIt} equal to FALSE will restore +Calling wxHandleFatalExceptions() with {\it doIt} equal to false will restore this default behaviour. + \membersection{::wxInitAllImageHandlers}\label{wxinitallimagehandlers} \func{void}{wxInitAllImageHandlers}{\void} @@ -340,15 +418,16 @@ see \helpref{wxImage}{wximage}. + \membersection{::wxInitialize}\label{wxinitialize} \func{bool}{wxInitialize}{\void} This function is used in wxBase only and only if you don't create \helpref{wxApp}{wxapp} object at all. In this case you must call it from your -{\tt main()} function before calling any other wxWindows functions. +{\tt main()} function before calling any other wxWidgets functions. -If the function returns {\tt FALSE} the initialization could not be performed, +If the function returns {\tt false} the initialization could not be performed, in this case the library cannot be used and \helpref{wxUninitialize}{wxuninitialize} shouldn't be called neither. @@ -360,9 +439,11 @@ call to this function. + \membersection{::wxSafeYield}\label{wxsafeyield} -\func{bool}{wxSafeYield}{\param{wxWindow*}{ win = NULL}} +\func{bool}{wxSafeYield}{\param{wxWindow*}{ win = NULL}, \param{bool}{ + onlyIfNeeded = false}} This function is similar to wxYield, except that it disables the user input to all program windows before calling wxYield and re-enables it again @@ -375,6 +456,7 @@ Returns the result of the call to \helpref{::wxYield}{wxyield}. + \membersection{::wxUninitialize}\label{wxuninitialize} \func{void}{wxUninitialize}{\void} @@ -386,19 +468,21 @@ once for each previous successful call to \helpref{wxInitialize}{wxinitialize}. + \membersection{::wxYield}\label{wxyield} \func{bool}{wxYield}{\void} Calls \helpref{wxApp::Yield}{wxappyield}. -This function is kept only for backwards compatibility, please use -\helpref{wxApp::Yield}{wxappyield}method instead in any new code. +This function is kept only for backwards compatibility. Please use +the \helpref{wxApp::Yield}{wxappyield} method instead in any new code. \wxheading{Include files} or + \membersection{::wxWakeUpIdle}\label{wxwakeupidle} \func{void}{wxWakeUpIdle}{\void} @@ -412,23 +496,40 @@ the corresponding functions \helpref{::wxPostEvent}{wxpostevent} and \wxheading{Include files} - + + + \section{Process control functions}\label{processfunctions} The functions in this section are used to launch or terminate the other processes. + \membersection{::wxExecute}\label{wxexecute} -\func{long}{wxExecute}{\param{const wxString\& }{command}, \param{bool }{sync = FALSE}, \param{wxProcess *}{callback = NULL}} +\func{long}{wxExecute}{\param{const wxString\& }{command}, \param{int }{sync = wxEXEC\_ASYNC}, \param{wxProcess *}{callback = NULL}} + +\perlnote{In wxPerl this function is called \texttt{Wx::ExecuteCommand}} -\func{long}{wxExecute}{\param{char **}{argv}, \param{bool }{sync = FALSE}, \param{wxProcess *}{callback = NULL}} +\func{long}{wxExecute}{\param{char **}{argv}, \param{int }{flags = wxEXEC\_ASYNC}, \param{wxProcess *}{callback = NULL}} + +\perlnote{In wxPerl this function is called \texttt{Wx::ExecuteArgs}} \func{long}{wxExecute}{\param{const wxString\& }{command}, \param{wxArrayString\& }{output}} +\perlnote{In wxPerl this function is called \texttt{Wx::ExecuteStdout} and it +only takes the {\tt command} argument, +and returns a 2-element list {\tt ( status, output )}, where {\tt output} is +an array reference.} + \func{long}{wxExecute}{\param{const wxString\& }{command}, \param{wxArrayString\& }{output}, \param{wxArrayString\& }{errors}} +\perlnote{In wxPerl this function is called \texttt{Wx::ExecuteStdoutStderr} +and it only takes the {\tt command} argument, +and returns a 3-element list {\tt ( status, output, errors )}, where +{\tt output} and {\tt errors} are array references.} + Executes another program in Unix or Windows. The first form takes a command string, such as {\tt "emacs file.txt"}. @@ -439,8 +540,9 @@ arguments, terminated by NULL. The semantics of the third and fourth versions is different from the first two and is described in more details below. -If {\it sync} is FALSE (the default), flow of control immediately returns. -If TRUE, the current application waits until the other program has terminated. +If {\it flags} parameter contains {\tt wxEXEC\_ASYNC} flag (the default), flow +of control immediately returns. If it contains {\tt wxEXEC\_SYNC}, the current +application waits until the other program has terminated. In the case of synchronous execution, the return value is the exit code of the process (which terminates by the moment the function returns) and will be @@ -448,33 +550,64 @@ $-1$ if the process couldn't be started and typically 0 if the process terminated successfully. Also, while waiting for the process to terminate, wxExecute will call \helpref{wxYield}{wxyield}. The caller should ensure that this can cause no recursion, in the simplest case by -calling \helpref{wxEnableTopLevelWindows(FALSE)}{wxenabletoplevelwindows}. +calling \helpref{wxEnableTopLevelWindows(false)}{wxenabletoplevelwindows}. For asynchronous execution, however, the return value is the process id and zero value indicates that the command could not be executed. As an added -complication, the return value of $-1$ in this case indicattes that we didn't +complication, the return value of $-1$ in this case indicates that we didn't launch a new process, but connected to the running one (this can only happen in case of using DDE under Windows for command execution). In particular, in this, and only this, case the calling code will not get the notification about process termination. -If callback isn't NULL and if execution is asynchronous (note that callback -parameter can not be non-NULL for synchronous execution), +If callback isn't NULL and if execution is asynchronous, \helpref{wxProcess::OnTerminate}{wxprocessonterminate} will be called when -the process finishes. +the process finishes. Specifying this parameter also allows you to redirect the +standard input and/or output of the process being launched by calling +\helpref{Redirect}{wxprocessredirect}. If the child process IO is redirected, +under Windows the process window is not shown by default (this avoids having to +flush an unnecessary console for the processes which don't create any windows +anyhow) but a {\tt wxEXEC\_NOHIDE} flag can be used to prevent this from +happening, i.e. with this flag the child process window will be shown normally. + +Under Unix the flag {\tt wxEXEC\_MAKE\_GROUP\_LEADER} may be used to ensure +that the new process is a group leader (this will create a new session if +needed). Calling \helpref{wxKill}{wxkill} with the argument of -pid where pid +is the process ID of the new process will kill this process as well as all of +its children (except those which have started their own session). Finally, you may use the third overloaded version of this function to execute a process (always synchronously) and capture its output in the array {\it output}. The fourth version adds the possibility to additionally capture the messages from standard error output in the {\it errors} array. -See also \helpref{wxShell}{wxshell}, \helpref{wxProcess}{wxprocess}, -\helpref{Exec sample}{sampleexec}. +{\bf NB:} Currently wxExecute() can only be used from the main thread, calling +this function from another thread will result in an assert failure in debug +build and won't work. + +\wxheading{See also} + +\helpref{wxShell}{wxshell}, \helpref{wxProcess}{wxprocess}, \helpref{Exec sample}{sampleexec}. + +\wxheading{Parameters} + +\docparam{command}{The command to execute and any parameters to pass to it as a +single string.} + +\docparam{argv}{The command to execute should be the first element of this +array, any additional ones are the command parameters and the array must be +terminated with a NULL pointer.} + +\docparam{flags}{Combination of bit masks {\tt wxEXEC\_ASYNC},\rtfsp +{\tt wxEXEC\_SYNC} and {\tt wxEXEC\_NOHIDE}} + +\docparam{callback}{An optional pointer to \helpref{wxProcess}{wxprocess}} \wxheading{Include files} + \membersection{::wxExit}\label{wxexit} \func{void}{wxExit}{\void} @@ -482,18 +615,19 @@ See also \helpref{wxShell}{wxshell}, \helpref{wxProcess}{wxprocess}, Exits application after calling \helpref{wxApp::OnExit}{wxapponexit}. Should only be used in an emergency: normally the top-level frame should be deleted (after deleting all other frames) to terminate the -application. See \helpref{wxWindow::OnCloseWindow}{wxwindowonclosewindow} and \helpref{wxApp}{wxapp}. +application. See \helpref{wxCloseEvent}{wxcloseevent} and \helpref{wxApp}{wxapp}. \wxheading{Include files} + \membersection{::wxKill}\label{wxkill} \func{int}{wxKill}{\param{long}{ pid}, \param{int}{ sig = wxSIGTERM}, \param{wxKillError }{*rc = NULL}} Equivalent to the Unix kill function: send the given signal {\it sig} to the -process with PID {\it pid}. The valud signal values are +process with PID {\it pid}. The valid signal values are \begin{verbatim} enum wxSignal @@ -518,7 +652,7 @@ enum wxSignal \end{verbatim} {\tt wxSIGNONE}, {\tt wxSIGKILL} and {\tt wxSIGTERM} have the same meaning -under both Unix and Windows but all the other signals are equivalent to +under both Unix and Windows but all the other signals are equivalent to {\tt wxSIGTERM} under Windows. Returns 0 on success, -1 on failure. If {\it rc} parameter is not NULL, it will @@ -545,6 +679,20 @@ enum wxKillError + +\membersection{::wxGetProcessId}\label{wxgetprocessid} + +\func{unsigned long}{wxGetProcessId}{\void} + +Returns the number uniquely identifying the current process in the system. + +If an error occurs, $0$ is returned. + +\wxheading{Include files} + + + + \membersection{::wxShell}\label{wxshell} \func{bool}{wxShell}{\param{const wxString\& }{command = NULL}} @@ -559,8 +707,41 @@ See also \helpref{wxExecute}{wxexecute}, \helpref{Exec sample}{sampleexec}. +\membersection{::wxShutdown}\label{wxshutdown} + +\func{bool}{wxShutdown}{\param{wxShutdownFlags}{flags}} + +This function shuts down or reboots the computer depending on the value of the +{\it flags}. Please notice that doing this requires the corresponding access +rights (superuser under Unix, {\tt SE\_SHUTDOWN} privelege under Windows NT) +and that this function is only implemented under Unix and Win32. + +\wxheading{Parameters} + +\docparam{flags}{Either {\tt wxSHUTDOWN\_POWEROFF} or {\tt wxSHUTDOWN\_REBOOT}} + +\wxheading{Returns} + +{\tt true} on success, {\tt false} if an error occured. + +\wxheading{Include files} + + + + + \section{Thread functions}\label{threadfunctions} +The functions and macros here mainly exist to make it writing the code which +may be compiled in multi thread build ({\tt wxUSE\_THREADS} $= 1$) as well as +in single thread configuration ({\tt wxUSE\_THREADS} $= 0$). + +For example, a static variable must be protected against simultaneous access by +multiple threads in the former configuration but in the latter the extra +overhead of using the critical section is not needed. To solve this problem, +the \helpref{wxCRITICAL\_SECTION}{wxcriticalsectionmacro} macro may be used +to create and use the critical section only when needed. + \wxheading{Include files} @@ -569,6 +750,93 @@ See also \helpref{wxExecute}{wxexecute}, \helpref{Exec sample}{sampleexec}. \helpref{wxThread}{wxthread}, \helpref{wxMutex}{wxmutex}, \helpref{Multithreading overview}{wxthreadoverview} + + +\membersection{wxCRIT\_SECT\_DECLARE}\label{wxcritsectdeclare} + +\func{}{wxCRIT\_SECT\_DECLARE}{\param{}{cs}} + +This macro declares a (static) critical section object named {\it cs} if +{\tt wxUSE\_THREADS} is $1$ and does nothing if it is $0$. + + + +\membersection{wxCRIT\_SECT\_DECLARE\_MEMBER}\label{wxcritsectdeclaremember} + +\func{}{wxCRIT\_SECT\_DECLARE}{\param{}{cs}} + +This macro declares a critical section object named {\it cs} if +{\tt wxUSE\_THREADS} is $1$ and does nothing if it is $0$. As it doesn't +include the {\tt static} keyword (unlike +\helpref{wxCRIT\_SECT\_DECLARE}{wxcritsectdeclare}), it can be used to declare +a class or struct member which explains its name. + + + +\membersection{wxCRIT\_SECT\_LOCKER}\label{wxcritsectlocker} + +\func{}{wxCRIT\_SECT\_LOCKER}{\param{}{name}, \param{}{cs}} + +This macro creates a \helpref{critical section lock}{wxcriticalsectionlocker} +object named {\it name} and associated with the critical section {\it cs} if +{\tt wxUSE\_THREADS} is $1$ and does nothing if it is $0$. + + + +\membersection{wxCRITICAL\_SECTION}\label{wxcriticalsectionmacro} + +\func{}{wxCRITICAL\_SECTION}{\param{}{name}} + +This macro combines \helpref{wxCRIT\_SECT\_DECLARE}{wxcritsectdeclare} and +\helpref{wxCRIT\_SECT\_LOCKER}{wxcritsectlocker}: it creates a static critical +section object and also the lock object associated with it. Because of this, it +can be only used inside a function, not at global scope. For example: + +\begin{verbatim} +int IncCount() +{ + static int s_counter = 0; + + wxCRITICAL_SECTION(counter); + + return ++s_counter; +} +\end{verbatim} + +(note that we suppose that the function is called the first time from the main +thread so that the critical section object is initialized correctly by the time +other threads start calling it, if this is not the case this approach can +{\bf not} be used and the critical section must be made a global instead). + + + +\membersection{wxENTER\_CRIT\_SECT}\label{wxentercritsect} + +\func{}{wxENTER\_CRIT\_SECT}{\param{wxCriticalSection\& }{cs}} + +This macro is equivalent to \helpref{cs.Enter()}{wxcriticalsectionenter} if +{\tt wxUSE\_THREADS} is $1$ and does nothing if it is $0$. + + + +\membersection{::wxIsMainThread}\label{wxismainthread} + +\func{bool}{wxIsMainThread}{\void} + +Returns {\tt true} if this thread is the main one. Always returns {\tt true} if +{\tt wxUSE\_THREADS} is $0$. + + + +\membersection{wxLEAVE\_CRIT\_SECT}\label{wxleavecritsect} + +\func{}{wxLEAVE\_CRIT\_SECT}{\param{wxCriticalSection\& }{cs}} + +This macro is equivalent to \helpref{cs.Leave()}{wxcriticalsectionleave} if +{\tt wxUSE\_THREADS} is $1$ and does nothing if it is $0$. + + + \membersection{::wxMutexGuiEnter}\label{wxmutexguienter} \func{void}{wxMutexGuiEnter}{\void} @@ -602,6 +870,7 @@ thread but the main one. This function is only defined on platforms which support preemptive threads. + \membersection{::wxMutexGuiLeave}\label{wxmutexguileave} \func{void}{wxMutexGuiLeave}{\void} @@ -611,6 +880,8 @@ See \helpref{::wxMutexGuiEnter()}{wxmutexguienter}. This function is only defined on platforms which support preemptive threads. + + \section{File functions}\label{filefunctions} \wxheading{Include files} @@ -624,11 +895,13 @@ threads. \helpref{wxFile}{wxfile}\\ \helpref{wxFileName}{wxfilename} -\membersection{::wxDirExists}\label{wxdirexists} + +\membersection{::wxDirExists}\label{functionwxdirexists} \func{bool}{wxDirExists}{\param{const wxString\& }{dirname}} -Returns TRUE if the directory exists. +Returns true if the directory exists. + \membersection{::wxDos2UnixFilename}\label{wxdos2unixfilename} @@ -637,12 +910,13 @@ Returns TRUE if the directory exists. Converts a DOS to a Unix filename by replacing backslashes with forward slashes. -\membersection{::wxFileExists}\label{wxfileexists} + +\membersection{::wxFileExists}\label{functionwxfileexists} \func{bool}{wxFileExists}{\param{const wxString\& }{filename}} -Returns TRUE if the file exists. It also returns TRUE if the file is -a directory. +Returns true if the file exists and is a plain file. + \membersection{::wxFileModificationTime}\label{wxfilemodificationtime} @@ -650,15 +924,20 @@ a directory. Returns time of last modification of given file. + \membersection{::wxFileNameFromPath}\label{wxfilenamefrompath} \func{wxString}{wxFileNameFromPath}{\param{const wxString\& }{path}} \func{char *}{wxFileNameFromPath}{\param{char *}{path}} +{\bf NB:} This function is obsolete, please use +\helpref{wxFileName::SplitPath}{wxfilenamesplitpath} instead. + Returns the filename for a full path. The second form returns a pointer to temporary storage that should not be deallocated. + \membersection{::wxFindFirstFile}\label{wxfindfirstfile} \func{wxString}{wxFindFirstFile}{\param{const char *}{spec}, \param{int}{ flags = 0}} @@ -683,6 +962,7 @@ For example: } \end{verbatim} + \membersection{::wxFindNextFile}\label{wxfindnextfile} \func{wxString}{wxFindNextFile}{\void} @@ -691,6 +971,7 @@ Returns the next file that matches the path passed to \helpref{wxFindFirstFile}{ See \helpref{wxFindFirstFile}{wxfindfirstfile} for an example. + \membersection{::wxGetDiskSpace}\label{wxgetdiskspace} \func{bool}{wxGetDiskSpace}{\param{const wxString\& }{path}, \param{wxLongLong }{*total = NULL}, \param{wxLongLong }{*free = NULL}} @@ -702,15 +983,16 @@ information is not needed. \wxheading{Returns} -{\tt TRUE} on success, {\tt FALSE} if an error occured (for example, the +{\tt true} on success, {\tt false} if an error occured (for example, the directory doesn't exist). \wxheading{Portability} -This function is implemented for Win16 (only for drives less than 2Gb), Win32, +This function is implemented for Win32, Mac OS and generic Unix provided the system has {\tt statfs()} function. -This function first appeared in wxWindows 2.3.2. +This function first appeared in wxWidgets 2.3.2. + \membersection{::wxGetOSDirectory}\label{wxgetosdirectory} @@ -718,19 +1000,22 @@ This function first appeared in wxWindows 2.3.2. Returns the Windows directory under Windows; on other platforms returns the empty string. + \membersection{::wxIsAbsolutePath}\label{wxisabsolutepath} \func{bool}{wxIsAbsolutePath}{\param{const wxString\& }{filename}} -Returns TRUE if the argument is an absolute filename, i.e. with a slash +Returns true if the argument is an absolute filename, i.e. with a slash or drive name at the beginning. + \membersection{::wxPathOnly}\label{wxpathonly} \func{wxString}{wxPathOnly}{\param{const wxString\& }{path}} Returns the directory part of the filename. + \membersection{::wxUnix2DosFilename}\label{wxunix2dosfilename} \func{void}{wxUnix2DosFilename}{\param{const wxString\& }{s}} @@ -738,41 +1023,46 @@ Returns the directory part of the filename. Converts a Unix to a DOS filename by replacing forward slashes with backslashes. + \membersection{::wxConcatFiles}\label{wxconcatfiles} \func{bool}{wxConcatFiles}{\param{const wxString\& }{file1}, \param{const wxString\& }{file2}, \param{const wxString\& }{file3}} Concatenates {\it file1} and {\it file2} to {\it file3}, returning -TRUE if successful. +true if successful. + \membersection{::wxCopyFile}\label{wxcopyfile} -\func{bool}{wxCopyFile}{\param{const wxString\& }{file1}, \param{const wxString\& }{file2}, \param{bool }{overwrite = TRUE}} +\func{bool}{wxCopyFile}{\param{const wxString\& }{file1}, \param{const wxString\& }{file2}, \param{bool }{overwrite = true}} -Copies {\it file1} to {\it file2}, returning TRUE if successful. If -{\it overwrite} parameter is TRUE (default), the destination file is overwritten -if it exists, but if {\it overwrite} is FALSE, the functions failes in this +Copies {\it file1} to {\it file2}, returning true if successful. If +{\it overwrite} parameter is true (default), the destination file is overwritten +if it exists, but if {\it overwrite} is false, the functions fails in this case. + \membersection{::wxGetCwd}\label{wxgetcwd} \func{wxString}{wxGetCwd}{\void} Returns a string containing the current (or working) directory. + \membersection{::wxGetWorkingDirectory}\label{wxgetworkingdirectory} \func{wxString}{wxGetWorkingDirectory}{\param{char *}{buf=NULL}, \param{int }{sz=1000}} -This function is obsolete: use \helpref{wxGetCwd}{wxgetcwd} instead. +{\bf NB:} This function is obsolete: use \helpref{wxGetCwd}{wxgetcwd} instead. Copies the current working directory into the buffer if supplied, or -copies the working directory into new storage (which you must delete yourself) -if the buffer is NULL. +copies the working directory into new storage (which you {\emph must} delete +yourself) if the buffer is NULL. {\it sz} is the size of the buffer if supplied. + \membersection{::wxGetTempFileName}\label{wxgettempfilename} \func{char *}{wxGetTempFileName}{\param{const wxString\& }{prefix}, \param{char *}{buf=NULL}} @@ -789,64 +1079,89 @@ if the buffer is NULL. %% %% It is the application's responsibility to create and delete the file. -These functions are obsolete, please use\rtfsp +{\bf NB:} These functions are obsolete, please use\rtfsp \helpref{wxFileName::CreateTempFileName}{wxfilenamecreatetempfilename}\rtfsp instead. + \membersection{::wxIsWild}\label{wxiswild} \func{bool}{wxIsWild}{\param{const wxString\& }{pattern}} -Returns TRUE if the pattern contains wildcards. See \helpref{wxMatchWild}{wxmatchwild}. +Returns true if the pattern contains wildcards. See \helpref{wxMatchWild}{wxmatchwild}. + \membersection{::wxMatchWild}\label{wxmatchwild} \func{bool}{wxMatchWild}{\param{const wxString\& }{pattern}, \param{const wxString\& }{text}, \param{bool}{ dot\_special}} -Returns TRUE if the {\it pattern}\/ matches the {\it text}\/; if {\it -dot\_special}\/ is TRUE, filenames beginning with a dot are not matched +Returns true if the \arg{pattern}\/ matches the {\it text}\/; if {\it +dot\_special}\/ is true, filenames beginning with a dot are not matched with wildcard characters. See \helpref{wxIsWild}{wxiswild}. + \membersection{::wxMkdir}\label{wxmkdir} \func{bool}{wxMkdir}{\param{const wxString\& }{dir}, \param{int }{perm = 0777}} -Makes the directory {\it dir}, returning TRUE if successful. +Makes the directory \arg{dir}, returning true if successful. {\it perm} is the access mask for the directory for the systems on which it is supported (Unix) and doesn't have effect for the other ones. + +\membersection{::wxParseCommonDialogsFilter}\label{wxparsecommondialogsfilter} + +\func{int}{wxParseCommonDialogsFilter}{\param{const wxString\& }{wildCard}, \param{wxArrayString\& }{descriptions}, \param{wxArrayString\& }{filters}} + +Parses the \arg{wildCard}, returning the number of filters. +Returns 0 if none or if there's a problem. +The arrays will contain an equal number of items found before the error. +On platforms where native dialogs handle only one filter per entry, +entries in arrays are automatically adjusted. +\arg{wildCard} is in the form: +\begin{verbatim} + "All files (*)|*|Image Files (*.jpeg *.png)|*.jpg;*.png" +\end{verbatim} + \membersection{::wxRemoveFile}\label{wxremovefile} \func{bool}{wxRemoveFile}{\param{const wxString\& }{file}} -Removes {\it file}, returning TRUE if successful. +Removes \arg{file}, returning true if successful. + \membersection{::wxRenameFile}\label{wxrenamefile} \func{bool}{wxRenameFile}{\param{const wxString\& }{file1}, \param{const wxString\& }{file2}} -Renames {\it file1} to {\it file2}, returning TRUE if successful. +Renames \arg{file1} to \arg{file2}, returning true if successful. + \membersection{::wxRmdir}\label{wxrmdir} \func{bool}{wxRmdir}{\param{const wxString\& }{dir}, \param{int}{ flags=0}} -Removes the directory {\it dir}, returning TRUE if successful. Does not work under VMS. +Removes the directory {\it dir}, returning true if successful. Does not work under VMS. The {\it flags} parameter is reserved for future use. + \membersection{::wxSetWorkingDirectory}\label{wxsetworkingdirectory} \func{bool}{wxSetWorkingDirectory}{\param{const wxString\& }{dir}} -Sets the current working directory, returning TRUE if the operation succeeded. +Sets the current working directory, returning true if the operation succeeded. Under MS Windows, the current drive is also changed if {\it dir} contains a drive specification. + \membersection{::wxSplitPath}\label{wxsplitfunction} \func{void}{wxSplitPath}{\param{const char *}{ fullname}, \param{wxString *}{ path}, \param{wxString *}{ name}, \param{wxString *}{ ext}} +{\bf NB:} This function is obsolete, please use +\helpref{wxFileName::SplitPath}{wxfilenamesplitpath} instead. + This function splits a full file name into components: the path (including possible disk/drive specification under Windows), the base name and the extension. Any of the output parameters ({\it path}, {\it name} or {\it ext}) may be NULL if you are not interested in the value of @@ -864,6 +1179,7 @@ three of them may be empty if the corresponding component is. The old contents o strings pointed to by these parameters will be overwritten in any case (if the pointers are not NULL). + \membersection{::wxTransferFileToStream}\label{wxtransferfiletostream} \func{bool}{wxTransferFileToStream}{\param{const wxString\& }{filename}, \param{ostream\& }{stream}} @@ -875,6 +1191,7 @@ use streams (within the document/view framework, for example). + \membersection{::wxTransferStreamToFile}\label{wxtransferstreamtofile} \func{bool}{wxTransferStreamToFile}{\param{istream\& }{stream} \param{const wxString\& }{filename}} @@ -886,11 +1203,14 @@ use streams (within the document/view framework, for example). + + \section{Network, user and OS functions}\label{networkfunctions} The functions in this section are used to retrieve information about the current computer and/or user characteristics. + \membersection{::wxGetFreeMemory}\label{wxgetfreememory} \func{long}{wxGetFreeMemory}{\void} @@ -903,6 +1223,7 @@ under Windows, Linux and Solaris. + \membersection{::wxGetFullHostName}\label{wxgetfullhostname} \func{wxString}{wxGetFullHostName}{\void} @@ -918,6 +1239,7 @@ error. + \membersection{::wxGetEmailAddress}\label{wxgetemailaddress} \func{bool}{wxGetEmailAddress}{\param{const wxString\& }{buf}, \param{int }{sz}} @@ -926,12 +1248,13 @@ Copies the user's email address into the supplied buffer, by concatenating the values returned by \helpref{wxGetFullHostName}{wxgetfullhostname}\rtfsp and \helpref{wxGetUserId}{wxgetuserid}. -Returns TRUE if successful, FALSE otherwise. +Returns true if successful, false otherwise. \wxheading{Include files} + \membersection{::wxGetHomeDir}\label{wxgethomedir} \func{wxString}{wxGetHomeDir}{\void} @@ -946,6 +1269,7 @@ Return the (current) user's home directory. + \membersection{::wxGetHostName}\label{wxgethostname} \func{wxString}{wxGetHostName}{\void} @@ -958,11 +1282,11 @@ the domain name. Under Windows or NT, this function first looks in the environment variable SYSTEM\_NAME; if this is not found, the entry {\bf HostName}\rtfsp -in the {\bf wxWindows} section of the WIN.INI file is tried. +in the {\bf wxWidgets} section of the WIN.INI file is tried. The first variant of this function returns the hostname if successful or an -empty string otherwise. The second (deprecated) function returns TRUE -if successful, FALSE otherwise. +empty string otherwise. The second (deprecated) function returns true +if successful, false otherwise. \wxheading{See also} @@ -972,6 +1296,7 @@ if successful, FALSE otherwise. + \membersection{::wxGetUserId}\label{wxgetuserid} \func{wxString}{wxGetUserId}{\void} @@ -983,11 +1308,11 @@ something like "jsmith". It uniquely identifies the current user (on this system Under Windows or NT, this function first looks in the environment variables USER and LOGNAME; if neither of these is found, the entry {\bf UserId}\rtfsp -in the {\bf wxWindows} section of the WIN.INI file is tried. +in the {\bf wxWidgets} section of the WIN.INI file is tried. The first variant of this function returns the login name if successful or an -empty string otherwise. The second (deprecated) function returns TRUE -if successful, FALSE otherwise. +empty string otherwise. The second (deprecated) function returns true +if successful, false otherwise. \wxheading{See also} @@ -997,6 +1322,7 @@ if successful, FALSE otherwise. + \membersection{::wxGetOsDescription}\label{wxgetosdescription} \func{wxString}{wxGetOsDescription}{\void} @@ -1013,6 +1339,7 @@ user-readable form. For example, this function may return strings like + \membersection{::wxGetOsVersion}\label{wxgetosversion} \func{int}{wxGetOsVersion}{\param{int *}{major = NULL}, \param{int *}{minor = NULL}} @@ -1021,7 +1348,9 @@ Gets operating system version information. \begin{twocollist}\itemsep=0pt \twocolitemruled{Platform}{Return types} -\twocolitem{Mac OS}{Return value is wxMAC when compiled with CodeWarrior under Mac OS 8.x/9.x and Mac OS X, wxMAC\_DARWIN when compiled with the Apple Developer Tools under Mac OS X.} +\twocolitem{Mac OS}{Return value is wxMAC when compiled with CodeWarrior under Mac OS 8.x/9.x and Mac OS X, wxMAC\_DARWIN when compiled with the Apple Developer Tools under Mac OS X. + +Both {\it major} and {\it minor} have to be looked at as hexadecimal numbers. So System 10.2.4 returns 0x10, resp 16 for {\it major} and 0x24, resp 36 for {\it minor}. } \twocolitem{GTK}{Return value is wxGTK, For GTK 1.0, {\it major} is 1, {\it minor} is 0. } \twocolitem{Motif}{Return value is wxMOTIF\_X, {\it major} is X version, {\it minor} is X revision.} \twocolitem{OS/2}{Return value is wxOS2\_PM.} @@ -1041,18 +1370,20 @@ Gets operating system version information. + \membersection{::wxGetUserHome}\label{wxgetuserhome} \func{const wxChar *}{wxGetUserHome}{\param{const wxString\& }{user = ""}} Returns the home directory for the given user. If the username is empty -(default value), this function behaves like +(default value), this function behaves like \helpref{wxGetHomeDir}{wxgethomedir}. \wxheading{Include files} + \membersection{::wxGetUserName}\label{wxgetusername} \func{wxString}{wxGetUserName}{\void} @@ -1062,13 +1393,13 @@ Returns the home directory for the given user. If the username is empty This function returns the full user name (something like "Mr. John Smith"). Under Windows or NT, this function looks for the entry {\bf UserName}\rtfsp -in the {\bf wxWindows} section of the WIN.INI file. If PenWindows +in the {\bf wxWidgets} section of the WIN.INI file. If PenWindows is running, the entry {\bf Current} in the section {\bf User} of the PENWIN.INI file is used. The first variant of this function returns the user name if successful or an -empty string otherwise. The second (deprecated) function returns {\tt TRUE} -if successful, {\tt FALSE} otherwise. +empty string otherwise. The second (deprecated) function returns {\tt true} +if successful, {\tt false} otherwise. \wxheading{See also} @@ -1078,8 +1409,11 @@ if successful, {\tt FALSE} otherwise. + + \section{String functions} + \membersection{::copystring}\label{copystring} \func{char *}{copystring}{\param{const char *}{s}} @@ -1089,12 +1423,53 @@ deleted with the {\it delete} operator. This function is deprecated, use \helpref{wxString}{wxstring} class instead. + +\membersection{::wxGetTranslation}\label{wxgettranslation} + +\func{const char *}{wxGetTranslation}{\param{const char * }{str}} + +\func{const char *}{wxGetTranslation}{\param{const char * }{str}, \param{const char * }{strPlural}, \param{size\_t }{n}} + +This function returns the translation of string {\it str} in the current +\helpref{locale}{wxlocale}. If the string is not found in any of the loaded +message catalogs (see \helpref{internationalization overview}{internationalization}), the +original string is returned. In debug build, an error message is logged -- this +should help to find the strings which were not yet translated. As this function +is used very often, an alternative (and also common in Unix world) syntax is +provided: the \helpref{\_()}{underscore} macro is defined to do the same thing +as wxGetTranslation. + +The second form is used when retrieving translation of string that has +different singular and plural form in English or different plural forms in some +other language. It takes two extra arguments: \arg{str} +parameter must contain the singular form of the string to be converted. +It is also used as the key for the search in the catalog. +The \arg{strPlural} parameter is the plural form (in English). +The parameter \arg{n} is used to determine the plural form. If no +message catalog is found \arg{str} is returned if `n == 1', +otherwise \arg{strPlural}. +See \urlref{GNU gettext manual}{http://www.gnu.org/manual/gettext/html\_chapter/gettext\_10.html\#SEC150} for additional information on plural forms handling. + +Both versions call \helpref{wxLocale::GetString}{wxlocalegetstring}. + \membersection{::wxIsEmpty}\label{wxisempty} \func{bool}{wxIsEmpty}{\param{const char *}{ p}} -Returns {\tt TRUE} if the pointer is either {\tt NULL} or points to an empty -string, {\tt FALSE} otherwise. +Returns {\tt true} if the pointer is either {\tt NULL} or points to an empty +string, {\tt false} otherwise. + + +\membersection{::wxStrcmp}\label{wxstrcmp} + +\func{int}{wxStrcmp}{\param{const char *}{p1}, \param{const char *}{p2}} + +Returns a negative value, 0, or positive value if {\it p1} is less than, equal +to or greater than {\it p2}. The comparison is case-sensitive. + +This function complements the standard C function {\it stricmp()} which performs +case-insensitive comparison. + \membersection{::wxStricmp}\label{wxstricmp} @@ -1106,28 +1481,31 @@ to or greater than {\it p2}. The comparison is case-insensitive. This function complements the standard C function {\it strcmp()} which performs case-sensitive comparison. + \membersection{::wxStringMatch}\label{wxstringmatch} \func{bool}{wxStringMatch}{\param{const wxString\& }{s1}, \param{const wxString\& }{s2},\\ - \param{bool}{ subString = TRUE}, \param{bool}{ exact = FALSE}} + \param{bool}{ subString = true}, \param{bool}{ exact = false}} -Returns {\tt TRUE} if the substring {\it s1} is found within {\it s2}, -ignoring case if {\it exact} is FALSE. If {\it subString} is {\tt FALSE}, +{\bf NB:} This function is obsolete, use \helpref{wxString::Find}{wxstringfind} instead. + +Returns {\tt true} if the substring {\it s1} is found within {\it s2}, +ignoring case if {\it exact} is false. If {\it subString} is {\tt false}, no substring matching is done. -This function is obsolete, use \helpref{wxString::Find}{wxstringfind} instead. \membersection{::wxStringEq}\label{wxstringeq} \func{bool}{wxStringEq}{\param{const wxString\& }{s1}, \param{const wxString\& }{s2}} +{\bf NB:} This function is obsolete, use \helpref{wxString}{wxstring} instead. + A macro defined as: \begin{verbatim} #define wxStringEq(s1, s2) (s1 && s2 && (strcmp(s1, s2) == 0)) \end{verbatim} -This function is obsolete, use \helpref{wxString}{wxstring} instead. \membersection{::wxStrlen}\label{wxstrlen} @@ -1137,17 +1515,6 @@ This is a safe version of standard function {\it strlen()}: it does exactly the same thing (i.e. returns the length of the string) except that it returns 0 if {\it p} is the {\tt NULL} pointer. -\membersection{::wxGetTranslation}\label{wxgettranslation} - -\func{const char *}{wxGetTranslation}{\param{const char * }{str}} - -This function returns the translation of string {\it str} in the current -\helpref{locale}{wxlocale}. If the string is not found in any of the loaded -message catalogs (see \helpref{internationalization overview}{internationalization}), the -original string is returned. In debug build, an error message is logged - this -should help to find the strings which were not yet translated. As this function -is used very often, an alternative syntax is provided: the \_() macro is -defined as wxGetTranslation(). \membersection{::wxSnprintf}\label{wxsnprintf} @@ -1165,25 +1532,73 @@ enough space. \helpref{wxVsnprintf}{wxvsnprintf}, \helpref{wxString::Printf}{wxstringprintf} -\membersection{::wxToLower}\label{wxtolower} -\func{char}{wxToLower}{\param{char }{ch}} +\membersection{wxT}\label{wxt} -Converts the character to lower case. This is implemented as a macro for efficiency. +\func{wxChar}{wxT}{\param{char }{ch}} -\wxheading{Include files} +\func{const wxChar *}{wxT}{\param{const char *}{s}} - +wxT() is a macro which can be used with character and string literals (in other +words, {\tt 'x'} or {\tt "foo"}) to automatically convert them to Unicode in +Unicode build configuration. Please see the +\helpref{Unicode overview}{unicode} for more information. + +This macro is simply returns the value passed to it without changes in ASCII +build. In fact, its definition is: +\begin{verbatim} +#ifdef UNICODE +#define wxT(x) L ## x +#else // !Unicode +#define wxT(x) x +#endif +\end{verbatim} -\membersection{::wxToUpper}\label{wxtoupper} -\func{char}{wxToUpper}{\param{char }{ch}} +\membersection{wxTRANSLATE}\label{wxtranslate} -Converts the character to upper case. This is implemented as a macro for efficiency. +\func{const wxChar *}{wxTRANSLATE}{\param{const char *}{s}} -\wxheading{Include files} +This macro doesn't do anything in the program code -- it simply expands to the +value of its argument (except in Unicode build where it is equivalent to +\helpref{wxT}{wxt} which makes it unnecessary to use both wxTRANSLATE and wxT +with the same string which would be really unreadable). - +However it does have a purpose and it is to mark the literal strings for the +extraction into the message catalog created by {\tt xgettext} program. Usually +this is achieved using \helpref{\_()}{underscore} but that macro not only marks +the string for extraction but also expands into a +\helpref{wxGetTranslation}{wxgettranslation} function call which means that it +cannot be used in some situations, notably for static array +initialization. + +Here is an example which should make it more clear: suppose that you have a +static array of strings containing the weekday names and which have to be +translated (note that it is a bad example, really, as +\helpref{wxDateTime}{wxdatetime} already can be used to get the localized week +day names already). If you write + +\begin{verbatim} +static const wxChar * const weekdays[] = { _("Mon"), ..., _("Sun") }; +... +// use weekdays[n] as usual +\end{verbatim} + +the code wouldn't compile because the function calls are forbidden in the array +initializer. So instead you should do + +\begin{verbatim} +static const wxChar * const weekdays[] = { wxTRANSLATE("Mon"), ..., wxTRANSLATE("Sun") }; +... +// use wxGetTranslation(weekdays[n]) +\end{verbatim} + +here. + +Note that although the code {\bf would} compile if you simply omit +wxTRANSLATE() in the above, it wouldn't work as expected because there would be +no translations for the weekday names in the program message catalog and +wxGetTranslation wouldn't find them. \membersection{::wxVsnprintf}\label{wxvsnprintf} @@ -1196,6 +1611,35 @@ argument instead of arbitrary number of parameters. \helpref{wxSnprintf}{wxsnprintf}, \helpref{wxString::PrintfV}{wxstringprintfv} + + +\membersection{\_}\label{underscore} + +\func{const wxChar *}{\_}{\param{const char *}{s}} + +This macro expands into a call to \helpref{wxGetTranslation}{wxgettranslation} +function, so it marks the message for the extraction by {\tt xgettext} just as +\helpref{wxTRANSLATE}{wxtranslate} does, but also returns the translation of +the string for the current locale during execution. + +Don't confuse this macro with \helpref{\_T()}{underscoret}! + + +\membersection{\_T}\label{underscoret} + +\func{wxChar}{\_T}{\param{char }{ch}} + +\func{const wxChar *}{\_T}{\param{const wxChar }{ch}} + +This macro is exactly the same as \helpref{wxT}{wxt} and is defined in +wxWidgets simply because it may be more intuitive for Windows programmers as +the standard Win32 headers also define it (as well as yet another name for the +same macro which is {\tt \_TEXT()}). + +Don't confuse this macro with \helpref{\_()}{underscore}! + + + \section{Dialog functions}\label{dialogfunctions} Below are a number of convenience functions for getting input from the @@ -1204,6 +1648,7 @@ parameters are optional. However, it is recommended to pass a parent frame parameter, or (in MS Windows or Motif) the wrong window frame may be brought to the front when the dialog box is popped up. + \membersection{::wxBeginBusyCursor}\label{wxbeginbusycursor} \func{void}{wxBeginBusyCursor}{\param{wxCursor *}{cursor = wxHOURGLASS\_CURSOR}} @@ -1219,6 +1664,7 @@ See also \helpref{wxIsBusy}{wxisbusy}, \helpref{wxBusyCursor}{wxbusycursor}. + \membersection{::wxBell}\label{wxbell} \func{void}{wxBell}{\void} @@ -1229,6 +1675,7 @@ Ring the system bell. + \membersection{::wxCreateFileTipProvider}\label{wxcreatefiletipprovider} \func{wxTipProvider *}{wxCreateFileTipProvider}{\param{const wxString\& }{filename}, @@ -1249,6 +1696,7 @@ is remembered between the 2 program runs.} + \membersection{::wxDirSelector}\label{wxdirselector} \func{wxString}{wxDirSelector}{\param{const wxString\& }{message = wxDirSelectorPromptStr},\\ @@ -1275,6 +1723,7 @@ if ( !dir.empty() ) + \membersection{::wxFileSelector}\label{wxfileselector} \func{wxString}{wxFileSelector}{\param{const wxString\& }{message}, \param{const wxString\& }{default\_path = ""},\\ @@ -1289,7 +1738,7 @@ If path is empty, the current directory will be used. If filename is empty, no default filename will be supplied. The wildcard determines what files are displayed in the file selector, and file extension supplies a type extension for the required filename. Flags may be a combination of wxOPEN, -wxSAVE, wxOVERWRITE\_PROMPT, wxHIDE\_READONLY, wxFILE\_MUST\_EXIST, wxMULTIPLE or 0. +wxSAVE, wxOVERWRITE\_PROMPT, wxFILE\_MUST\_EXIST, wxMULTIPLE or 0. Both the Unix and Windows versions implement a wildcard filter. Typing a filename containing wildcards (*, ?) in the filename text item, and @@ -1307,17 +1756,20 @@ The application must check for an empty return value (the user pressed Cancel). For example: \begin{verbatim} -const wxString& s = wxFileSelector("Choose a file to open"); -if (s) +wxString filename = wxFileSelector("Choose a file to open"); +if ( !filename.empty() ) { - ... + // work with the file + ... } +//else: cancelled by user \end{verbatim} \wxheading{Include files} + \membersection{::wxEndBusyCursor}\label{wxendbusycursor} \func{void}{wxEndBusyCursor}{\void} @@ -1331,6 +1783,7 @@ See also \helpref{wxIsBusy}{wxisbusy}, \helpref{wxBusyCursor}{wxbusycursor}. + \membersection{::wxGetColourFromUser}\label{wxgetcolourfromuser} \func{wxColour}{wxGetColourFromUser}{\param{wxWindow *}{parent}, \param{const wxColour\& }{colInit}} @@ -1349,6 +1802,7 @@ is valid) if the dialog was cancelled. + \membersection{::wxGetFontFromUser}\label{wxgetfontfromuser} \func{wxFont}{wxGetFontFromUser}{\param{wxWindow *}{parent}, \param{const wxFont\& }{fontInit}} @@ -1368,6 +1822,7 @@ is valid) if the dialog was cancelled. + \membersection{::wxGetMultipleChoices}\label{wxgetmultiplechoices} \func{size\_t}{wxGetMultipleChoices}{\\ @@ -1377,7 +1832,7 @@ is valid) if the dialog was cancelled. \param{const wxArrayString\& }{aChoices},\\ \param{wxWindow *}{parent = NULL},\\ \param{int}{ x = -1}, \param{int}{ y = -1},\\ - \param{bool}{ centre = TRUE},\\ + \param{bool}{ centre = true},\\ \param{int }{width=150}, \param{int }{height=200}} \func{size\_t}{wxGetMultipleChoices}{\\ @@ -1387,7 +1842,7 @@ is valid) if the dialog was cancelled. \param{int}{ n}, \param{const wxString\& }{choices[]},\\ \param{wxWindow *}{parent = NULL},\\ \param{int}{ x = -1}, \param{int}{ y = -1},\\ - \param{bool}{ centre = TRUE},\\ + \param{bool}{ centre = true},\\ \param{int }{width=150}, \param{int }{height=200}} Pops up a dialog box containing a message, OK/Cancel buttons and a @@ -1400,8 +1855,8 @@ You may pass the list of strings to choose from either using {\it choices} which is an array of {\it n} strings for the listbox or by using a single {\it aChoices} parameter of type \helpref{wxArrayString}{wxarraystring}. -If {\it centre} is TRUE, the message text (which may include new line -characters) is centred; if FALSE, the message is left-justified. +If {\it centre} is true, the message text (which may include new line +characters) is centred; if false, the message is left-justified. \wxheading{Include files} @@ -1411,6 +1866,7 @@ characters) is centred; if FALSE, the message is left-justified. and {\tt choices}, and no {\tt selections} parameter; the function returns an array containing the user selections.} + \membersection{::wxGetNumberFromUser}\label{wxgetnumberfromuser} \func{long}{wxGetNumberFromUser}{ @@ -1436,7 +1892,8 @@ Dialog is centered on its {\it parent} unless an explicit position is given in \wxheading{Include files} - + + \membersection{::wxGetPasswordFromUser}\label{wxgetpasswordfromuser} @@ -1451,29 +1908,31 @@ to be used for entering passwords as the function name implies. + \membersection{::wxGetTextFromUser}\label{wxgettextfromuser} \func{wxString}{wxGetTextFromUser}{\param{const wxString\& }{message}, \param{const wxString\& }{caption = ``Input text"},\\ \param{const wxString\& }{default\_value = ``"}, \param{wxWindow *}{parent = NULL},\\ - \param{int}{ x = -1}, \param{int}{ y = -1}, \param{bool}{ centre = TRUE}} + \param{int}{ x = -1}, \param{int}{ y = -1}, \param{bool}{ centre = true}} Pop up a dialog box with title set to {\it caption}, {\it message}, and a \rtfsp{\it default\_value}. The user may type in text and press OK to return this text, or press Cancel to return the empty string. -If {\it centre} is TRUE, the message text (which may include new line characters) -is centred; if FALSE, the message is left-justified. +If {\it centre} is true, the message text (which may include new line characters) +is centred; if false, the message is left-justified. \wxheading{Include files} + \membersection{::wxGetMultipleChoice}\label{wxgetmultiplechoice} \func{int}{wxGetMultipleChoice}{\param{const wxString\& }{message}, \param{const wxString\& }{caption}, \param{int}{ n}, \param{const wxString\& }{choices[]},\\ \param{int }{nsel}, \param{int *}{selection}, \param{wxWindow *}{parent = NULL}, \param{int}{ x = -1}, \param{int}{ y = -1},\\ - \param{bool}{ centre = TRUE}, \param{int }{width=150}, \param{int }{height=200}} + \param{bool}{ centre = true}, \param{int }{width=150}, \param{int }{height=200}} Pops up a dialog box containing a message, OK/Cancel buttons and a multiple-selection listbox. The user may choose one or more item(s) and press OK or Cancel. @@ -1487,13 +1946,14 @@ If Cancel is pressed, -1 is returned. {\it choices} is an array of {\it n} strings for the listbox. -If {\it centre} is TRUE, the message text (which may include new line characters) -is centred; if FALSE, the message is left-justified. +If {\it centre} is true, the message text (which may include new line characters) +is centred; if false, the message is left-justified. \wxheading{Include files} + \membersection{::wxGetSingleChoice}\label{wxgetsinglechoice} \func{wxString}{wxGetSingleChoice}{\param{const wxString\& }{message},\\ @@ -1501,7 +1961,7 @@ is centred; if FALSE, the message is left-justified. \param{const wxArrayString\& }{aChoices},\\ \param{wxWindow *}{parent = NULL},\\ \param{int}{ x = -1}, \param{int}{ y = -1},\\ - \param{bool}{ centre = TRUE},\\ + \param{bool}{ centre = true},\\ \param{int }{width=150}, \param{int }{height=200}} \func{wxString}{wxGetSingleChoice}{\param{const wxString\& }{message},\\ @@ -1509,7 +1969,7 @@ is centred; if FALSE, the message is left-justified. \param{int}{ n}, \param{const wxString\& }{choices[]},\\ \param{wxWindow *}{parent = NULL},\\ \param{int}{ x = -1}, \param{int}{ y = -1},\\ - \param{bool}{ centre = TRUE},\\ + \param{bool}{ centre = true},\\ \param{int }{width=150}, \param{int }{height=200}} Pops up a dialog box containing a message, OK/Cancel buttons and a @@ -1522,8 +1982,8 @@ You may pass the list of strings to choose from either using {\it choices} which is an array of {\it n} strings for the listbox or by using a single {\it aChoices} parameter of type \helpref{wxArrayString}{wxarraystring}. -If {\it centre} is TRUE, the message text (which may include new line -characters) is centred; if FALSE, the message is left-justified. +If {\it centre} is true, the message text (which may include new line +characters) is centred; if false, the message is left-justified. \wxheading{Include files} @@ -1532,19 +1992,20 @@ characters) is centred; if FALSE, the message is left-justified. \perlnote{In wxPerl there is just an array reference in place of {\tt n} and {\tt choices}.} + \membersection{::wxGetSingleChoiceIndex}\label{wxgetsinglechoiceindex} \func{int}{wxGetSingleChoiceIndex}{\param{const wxString\& }{message},\\ \param{const wxString\& }{caption},\\ \param{const wxArrayString\& }{aChoices},\\ \param{wxWindow *}{parent = NULL}, \param{int}{ x = -1}, \param{int}{ y = -1},\\ - \param{bool}{ centre = TRUE}, \param{int }{width=150}, \param{int }{height=200}} + \param{bool}{ centre = true}, \param{int }{width=150}, \param{int }{height=200}} \func{int}{wxGetSingleChoiceIndex}{\param{const wxString\& }{message},\\ \param{const wxString\& }{caption},\\ \param{int}{ n}, \param{const wxString\& }{choices[]},\\ \param{wxWindow *}{parent = NULL}, \param{int}{ x = -1}, \param{int}{ y = -1},\\ - \param{bool}{ centre = TRUE}, \param{int }{width=150}, \param{int }{height=200}} + \param{bool}{ centre = true}, \param{int }{width=150}, \param{int }{height=200}} As {\bf wxGetSingleChoice} but returns the index representing the selected string. If the user pressed cancel, -1 is returned. @@ -1556,6 +2017,7 @@ string. If the user pressed cancel, -1 is returned. \perlnote{In wxPerl there is just an array reference in place of {\tt n} and {\tt choices}.} + \membersection{::wxGetSingleChoiceData}\label{wxgetsinglechoicedata} \func{wxString}{wxGetSingleChoiceData}{\param{const wxString\& }{message},\\ @@ -1564,7 +2026,7 @@ and {\tt choices}.} \param{const wxString\& }{client\_data[]},\\ \param{wxWindow *}{parent = NULL},\\ \param{int}{ x = -1}, \param{int}{ y = -1},\\ - \param{bool}{ centre = TRUE}, \param{int }{width=150}, \param{int }{height=200}} + \param{bool}{ centre = true}, \param{int }{width=150}, \param{int }{height=200}} \func{wxString}{wxGetSingleChoiceData}{\param{const wxString\& }{message},\\ \param{const wxString\& }{caption},\\ @@ -1572,7 +2034,7 @@ and {\tt choices}.} \param{const wxString\& }{client\_data[]},\\ \param{wxWindow *}{parent = NULL},\\ \param{int}{ x = -1}, \param{int}{ y = -1},\\ - \param{bool}{ centre = TRUE}, \param{int }{width=150}, \param{int }{height=200}} + \param{bool}{ centre = true}, \param{int }{width=150}, \param{int }{height=200}} As {\bf wxGetSingleChoice} but takes an array of client data pointers corresponding to the strings, and returns one of these pointers or NULL if @@ -1587,11 +2049,12 @@ elements as {\it choices} or {\it aChoices}! and {\tt choices}, and the client data array must have the same length as the choices array.} + \membersection{::wxIsBusy}\label{wxisbusy} \func{bool}{wxIsBusy}{\void} -Returns TRUE if between two \helpref{wxBeginBusyCursor}{wxbeginbusycursor} and\rtfsp +Returns true if between two \helpref{wxBeginBusyCursor}{wxbeginbusycursor} and\rtfsp \helpref{wxEndBusyCursor}{wxendbusycursor} calls. See also \helpref{wxBusyCursor}{wxbusycursor}. @@ -1600,9 +2063,10 @@ See also \helpref{wxBusyCursor}{wxbusycursor}. + \membersection{::wxMessageBox}\label{wxmessagebox} -\func{int}{wxMessageBox}{\param{const wxString\& }{message}, \param{const wxString\& }{caption = ``Message"}, \param{int}{ style = wxOK \pipe wxCENTRE},\\ +\func{int}{wxMessageBox}{\param{const wxString\& }{message}, \param{const wxString\& }{caption = ``Message"}, \param{int}{ style = wxOK},\\ \param{wxWindow *}{parent = NULL}, \param{int}{ x = -1}, \param{int}{ y = -1}} General purpose message dialog. {\it style} may be a bit list of the @@ -1614,7 +2078,6 @@ wxCANCEL.} \twocolitem{wxCANCEL}{Puts a Cancel button on the message box. May be combined with wxYES\_NO or wxOK.} \twocolitem{wxOK}{Puts an Ok button on the message box. May be combined with wxCANCEL.} -\twocolitem{wxCENTRE}{Centres the text.} \twocolitem{wxICON\_EXCLAMATION}{Displays an exclamation mark symbol.} \twocolitem{wxICON\_HAND}{Displays an error symbol.} \twocolitem{wxICON\_ERROR}{Displays an error symbol - the same as wxICON\_HAND.} @@ -1631,36 +2094,33 @@ For example: int answer = wxMessageBox("Quit program?", "Confirm", wxYES_NO | wxCANCEL, main_frame); if (answer == wxYES) - delete main_frame; + main_frame->Close(); ... \end{verbatim} {\it message} may contain newline characters, in which case the message will be split into separate lines, to cater for large messages. -Under Windows, the native MessageBox function is used unless wxCENTRE -is specified in the style, in which case a generic function is used. -This is because the native MessageBox function cannot centre text. -The symbols are not shown when the generic function is used. - \wxheading{Include files} + \membersection{::wxShowTip}\label{wxshowtip} \func{bool}{wxShowTip}{\param{wxWindow *}{parent}, \param{wxTipProvider *}{tipProvider}, - \param{bool }{showAtStartup = TRUE}} + \param{bool }{showAtStartup = true}} -This function shows a "startup tip" to the user. +This function shows a "startup tip" to the user. The return value is the +state of the ``Show tips at startup'' checkbox. \docparam{parent}{The parent window for the modal dialog} \docparam{tipProvider}{An object which is used to get the text of the tips. It may be created with the \helpref{wxCreateFileTipProvider}{wxcreatefiletipprovider} function.} -\docparam{showAtStartup}{Should be TRUE if startup tips are shown, FALSE +\docparam{showAtStartup}{Should be true if startup tips are shown, false otherwise. This is used as the initial value for "Show tips at startup" checkbox which is shown in the tips dialog.} @@ -1672,6 +2132,34 @@ checkbox which is shown in the tips dialog.} + + + +\section{Math functions} + +\wxheading{Include files} + + + + +\membersection{wxFinite}\label{wxfinite} + +\func{int}{wxFinite}{\param{double }{x}} + +Returns a non-zero value if {\it x} is neither infinite or NaN (not a number), +returns 0 otherwise. + + +\membersection{wxIsNaN}\label{wxisnan} + +\func{bool}{wxIsNaN}{\param{double }{x}} + +Returns a non-zero value if {\it x} is NaN (not a number), returns 0 +otherwise. + + + + \section{GDI functions}\label{gdifunctions} The following are relevant to the GDI (Graphics Device Interface). @@ -1680,6 +2168,7 @@ The following are relevant to the GDI (Graphics Device Interface). + \membersection{wxBITMAP}\label{wxbitmapmacro} \func{}{wxBITMAP}{bitmapName} @@ -1697,6 +2186,7 @@ avoid using {\tt \#ifdef}s when creating bitmaps. + \membersection{::wxClientDisplayRect}\label{wxclientdisplayrect} \func{void}{wxClientDisplayRect}{\param{int *}{x}, \param{int *}{y}, @@ -1709,11 +2199,13 @@ this means the area not covered by the taskbar, etc. Other platforms are currently defaulting to the whole display until a way is found to provide this info for all window managers, etc. + \membersection{::wxColourDisplay}\label{wxcolourdisplay} \func{bool}{wxColourDisplay}{\void} -Returns TRUE if the display is colour, FALSE otherwise. +Returns true if the display is colour, false otherwise. + \membersection{::wxDisplayDepth}\label{wxdisplaydepth} @@ -1721,6 +2213,7 @@ Returns TRUE if the display is colour, FALSE otherwise. Returns the depth of the display (a value of 1 denotes a monochrome display). + \membersection{::wxDisplaySize}\label{wxdisplaysize} \func{void}{wxDisplaySize}{\param{int *}{width}, \param{int *}{height}} @@ -1729,6 +2222,7 @@ Returns the depth of the display (a value of 1 denotes a monochrome display). Returns the display size in pixels. + \membersection{::wxDisplaySizeMM}\label{wxdisplaysizemm} \func{void}{wxDisplaySizeMM}{\param{int *}{width}, \param{int *}{height}} @@ -1737,6 +2231,7 @@ Returns the display size in pixels. Returns the display size in millimeters. + \membersection{::wxDROP\_ICON}\label{wxdropicon} \func{wxIconOrCursor}{wxDROP\_ICON}{\param{const char *}{name}} @@ -1752,6 +2247,7 @@ This macro should be used with + \membersection{wxICON}\label{wxiconmacro} \func{}{wxICON}{iconName} @@ -1769,6 +2265,7 @@ avoid using {\tt \#ifdef}s when creating icons. + \membersection{::wxMakeMetafilePlaceable}\label{wxmakemetafileplaceable} \func{bool}{wxMakeMetafilePlaceable}{\param{const wxString\& }{filename}, \param{int }{minX}, \param{int }{minY}, @@ -1788,7 +2285,7 @@ the equivalent of the following code to the start of the metafile data: SetWindowExt(dc, maxX - minX, maxY - minY); \end{verbatim} -This simulates the wxMM\_TEXT mapping mode, which wxWindows assumes. +This simulates the wxMM\_TEXT mapping mode, which wxWidgets assumes. Placeable metafiles may be imported by many Windows applications, and can be used in RTF (Rich Text Format) files. @@ -1797,6 +2294,7 @@ used in RTF (Rich Text Format) files. This function is only available under Windows. + \membersection{::wxSetCursor}\label{wxsetcursor} \func{void}{wxSetCursor}{\param{wxCursor *}{cursor}} @@ -1804,9 +2302,11 @@ This function is only available under Windows. Globally sets the cursor; only has an effect in Windows and GTK. See also \helpref{wxCursor}{wxcursor}, \helpref{wxWindow::SetCursor}{wxwindowsetcursor}. + + \section{Printer settings}\label{printersettings} -These routines are obsolete and should no longer be used! +{\bf NB:} These routines are obsolete and should no longer be used! The following functions are used to control PostScript printing. Under Windows, PostScript output can only be sent to a file. @@ -1815,18 +2315,21 @@ Windows, PostScript output can only be sent to a file. + \membersection{::wxGetPrinterCommand}\label{wxgetprintercommand} \func{wxString}{wxGetPrinterCommand}{\void} Gets the printer command used to print a file. The default is {\tt lpr}. + \membersection{::wxGetPrinterFile}\label{wxgetprinterfile} \func{wxString}{wxGetPrinterFile}{\void} Gets the PostScript output filename. + \membersection{::wxGetPrinterMode}\label{wxgetprintermode} \func{int}{wxGetPrinterMode}{\void} @@ -1834,48 +2337,56 @@ Gets the PostScript output filename. Gets the printing mode controlling where output is sent (PS\_PREVIEW, PS\_FILE or PS\_PRINTER). The default is PS\_PREVIEW. + \membersection{::wxGetPrinterOptions}\label{wxgetprinteroptions} \func{wxString}{wxGetPrinterOptions}{\void} Gets the additional options for the print command (e.g. specific printer). The default is nothing. + \membersection{::wxGetPrinterOrientation}\label{wxgetprinterorientation} \func{int}{wxGetPrinterOrientation}{\void} Gets the orientation (PS\_PORTRAIT or PS\_LANDSCAPE). The default is PS\_PORTRAIT. + \membersection{::wxGetPrinterPreviewCommand}\label{wxgetprinterpreviewcommand} \func{wxString}{wxGetPrinterPreviewCommand}{\void} Gets the command used to view a PostScript file. The default depends on the platform. + \membersection{::wxGetPrinterScaling}\label{wxgetprinterscaling} \func{void}{wxGetPrinterScaling}{\param{float *}{x}, \param{float *}{y}} Gets the scaling factor for PostScript output. The default is 1.0, 1.0. + \membersection{::wxGetPrinterTranslation}\label{wxgetprintertranslation} \func{void}{wxGetPrinterTranslation}{\param{float *}{x}, \param{float *}{y}} Gets the translation (from the top left corner) for PostScript output. The default is 0.0, 0.0. + \membersection{::wxSetPrinterCommand}\label{wxsetprintercommand} \func{void}{wxSetPrinterCommand}{\param{const wxString\& }{command}} Sets the printer command used to print a file. The default is {\tt lpr}. + \membersection{::wxSetPrinterFile}\label{wxsetprinterfile} \func{void}{wxSetPrinterFile}{\param{const wxString\& }{filename}} Sets the PostScript output filename. + \membersection{::wxSetPrinterMode}\label{wxsetprintermode} \func{void}{wxSetPrinterMode}{\param{int }{mode}} @@ -1883,36 +2394,43 @@ Sets the PostScript output filename. Sets the printing mode controlling where output is sent (PS\_PREVIEW, PS\_FILE or PS\_PRINTER). The default is PS\_PREVIEW. + \membersection{::wxSetPrinterOptions}\label{wxsetprinteroptions} \func{void}{wxSetPrinterOptions}{\param{const wxString\& }{options}} Sets the additional options for the print command (e.g. specific printer). The default is nothing. + \membersection{::wxSetPrinterOrientation}\label{wxsetprinterorientation} \func{void}{wxSetPrinterOrientation}{\param{int}{ orientation}} Sets the orientation (PS\_PORTRAIT or PS\_LANDSCAPE). The default is PS\_PORTRAIT. + \membersection{::wxSetPrinterPreviewCommand}\label{wxsetprinterpreviewcommand} \func{void}{wxSetPrinterPreviewCommand}{\param{const wxString\& }{command}} Sets the command used to view a PostScript file. The default depends on the platform. + \membersection{::wxSetPrinterScaling}\label{wxsetprinterscaling} \func{void}{wxSetPrinterScaling}{\param{float }{x}, \param{float }{y}} Sets the scaling factor for PostScript output. The default is 1.0, 1.0. + \membersection{::wxSetPrinterTranslation}\label{wxsetprintertranslation} \func{void}{wxSetPrinterTranslation}{\param{float }{x}, \param{float }{y}} Sets the translation (from the top left corner) for PostScript output. The default is 0.0, 0.0. + + \section{Clipboard functions}\label{clipsboard} These clipboard functions are implemented for Windows only. The use of these functions @@ -1923,11 +2441,13 @@ class instead. -\membersection{::wxClipboardOpen}\label{wxclipboardopen} + +\membersection{::wxClipboardOpen}\label{functionwxclipboardopen} \func{bool}{wxClipboardOpen}{\void} -Returns TRUE if this application has already opened the clipboard. +Returns true if this application has already opened the clipboard. + \membersection{::wxCloseClipboard}\label{wxcloseclipboard} @@ -1935,12 +2455,14 @@ Returns TRUE if this application has already opened the clipboard. Closes the clipboard to allow other applications to use it. + \membersection{::wxEmptyClipboard}\label{wxemptyclipboard} \func{bool}{wxEmptyClipboard}{\void} Empties the clipboard. + \membersection{::wxEnumClipboardFormats}\label{wxenumclipboardformats} \func{int}{wxEnumClipboardFormats}{\param{int}{dataFormat}} @@ -1961,6 +2483,7 @@ is not open. Before it enumerates the formats function, an application must open the clipboard by using the wxOpenClipboard function. + \membersection{::wxGetClipboardData}\label{wxgetclipboarddata} \func{wxObject *}{wxGetClipboardData}{\param{int}{dataFormat}} @@ -1976,6 +2499,7 @@ Gets data from the clipboard. The clipboard must have previously been opened for this call to succeed. + \membersection{::wxGetClipboardFormatName}\label{wxgetclipboardformatname} \func{bool}{wxGetClipboardFormatName}{\param{int}{dataFormat}, \param{const wxString\& }{formatName}, \param{int}{maxCount}} @@ -1983,11 +2507,13 @@ The clipboard must have previously been opened for this call to succeed. Gets the name of a registered clipboard format, and puts it into the buffer {\it formatName} which is of maximum length {\it maxCount}. {\it dataFormat} must not specify a predefined clipboard format. + \membersection{::wxIsClipboardFormatAvailable}\label{wxisclipboardformatavailable} \func{bool}{wxIsClipboardFormatAvailable}{\param{int}{dataFormat}} -Returns TRUE if the given data format is available on the clipboard. +Returns true if the given data format is available on the clipboard. + \membersection{::wxOpenClipboard}\label{wxopenclipboard} @@ -1995,12 +2521,14 @@ Returns TRUE if the given data format is available on the clipboard. Opens the clipboard for passing data to it or getting data from it. + \membersection{::wxRegisterClipboardFormat}\label{wxregisterclipboardformat} \func{int}{wxRegisterClipboardFormat}{\param{const wxString\& }{formatName}} Registers the clipboard data format name and returns an identifier. + \membersection{::wxSetClipboardData}\label{wxsetclipboarddata} \func{bool}{wxSetClipboardData}{\param{int}{dataFormat}, \param{wxObject *}{data}, \param{int}{width}, \param{int}{height}} @@ -2018,8 +2546,110 @@ Passes data to the clipboard. The clipboard must have previously been opened for this call to succeed. + + + \section{Miscellaneous functions}\label{miscellany} + +\membersection{wxCONCAT}\label{wxconcat} + +\func{}{wxCONCAT}{\param{}{x}, \param{}{y}} + +This macro returns the concatenation of two tokens \arg{x} and \arg{y}. + + +\membersection{wxDYNLIB\_FUNCTION}\label{wxdynlibfunction} + +\func{}{wxDYNLIB\_FUNCTION}{\param{}{type}, \param{}{name}, \param{}{dynlib}} + +When loading a function from a DLL you always have to cast the returned +{\tt void *} pointer to the correct type and, even more annoyingly, you have to +repeat this type twice if you want to declare and define a function pointer all +in one line + +This macro makes this slightly less painful by allowing you to specify the +type only once, as the first parameter, and creating a variable of this type +named after the function but with {\tt pfn} prefix and initialized with the +function \arg{name} from the \helpref{wxDynamicLibrary}{wxdynamiclibrary} +\arg{dynlib}. + +\wxheading{Parameters} + +\docparam{type}{the type of the function} + +\docparam{name}{the name of the function to load, not a string (without quotes, +it is quoted automatically by the macro)} + +\docparam{dynlib}{the library to load the function from} + + + +\membersection{wxEXPLICIT}\label{wxexplicit} + +{\tt wxEXPLICIT} is a macro which expands to the C++ {\tt explicit} keyword if +the compiler supports it or nothing otherwise. Thus, it can be used even in the +code which might have to be compiled with an old compiler without support for +this language feature but still take advantage of it when it is available. + + +\membersection{::wxGetKeyState}\label{wxgetkeystate} + +\func{bool}{wxGetKeyState}{\param{wxKeyCode }{key}} + +Returns \true if the key parameter is currently pressed on the keyboard, or +with modifier keys, (caps lock, etc) if the key is active (the led light is +on). + +\wxheading{Include files} + + + + +\membersection{wxLL}\label{wxll} + +\func{wxLongLong\_t}{wxLL}{\param{}{number}} + +This macro is defined for the platforms with a native 64 bit integer type and +allows to define 64 bit compile time constants: + +\begin{verbatim} + #ifdef wxLongLong_t + wxLongLong_t ll = wxLL(0x1234567890abcdef); + #endif +\end{verbatim} + +\wxheading{Include files} + + + +\wxheading{See also} + +\helpref{wxULL}{wxull}, \helpref{wxLongLong}{wxlonglong} + + +\membersection{wxLongLongFmtSpec}\label{wxlonglongfmtspec} + +This macro is defined to contain the {\tt printf()} format specifier using +which 64 bit integer numbers (i.e. those of type {\tt wxLongLong\_t}) can be +printed. Example of using it: + +\begin{verbatim} + #ifdef wxLongLong_t + wxLongLong_t ll = wxLL(0x1234567890abcdef); + printf("Long long = %" wxLongLongFmtSpec "x\n", ll); + #endif +\end{verbatim} + +\wxheading{See also} + +\helpref{wxLL}{wxll} + +\wxheading{Include files} + + + + \membersection{::wxNewId}\label{wxnewid} \func{long}{wxNewId}{\void} @@ -2030,6 +2660,7 @@ Generates an integer identifier unique to this run of the program. + \membersection{::wxRegisterId}\label{wxregisterid} \func{void}{wxRegisterId}{\param{long}{ id}} @@ -2041,11 +2672,12 @@ the given {\bf id}. + \membersection{::wxDDECleanUp}\label{wxddecleanup} \func{void}{wxDDECleanUp}{\void} -Called when wxWindows exits, to clean up the DDE system. This no longer needs to be +Called when wxWidgets exits, to clean up the DDE system. This no longer needs to be called by the application. See also \helpref{wxDDEInitialize}{wxddeinitialize}. @@ -2054,6 +2686,7 @@ See also \helpref{wxDDEInitialize}{wxddeinitialize}. + \membersection{::wxDDEInitialize}\label{wxddeinitialize} \func{void}{wxDDEInitialize}{\void} @@ -2061,28 +2694,19 @@ See also \helpref{wxDDEInitialize}{wxddeinitialize}. Initializes the DDE system. May be called multiple times without harm. This no longer needs to be called by the application: it will be called -by wxWindows if necessary. +by wxWidgets if necessary. -See also \helpref{wxDDEServer}{wxddeserver}, \helpref{wxDDEClient}{wxddeclient}, \helpref{wxDDEConnection}{wxddeconnection}, +See also \helpref{wxDDEServer}{wxddeserver}, \helpref{wxDDEClient}{wxddeclient}, \helpref{wxDDEConnection}{wxddeconnection},\rtfsp \helpref{wxDDECleanUp}{wxddecleanup}. \wxheading{Include files} -\membersection{::wxDisplaySize}\label{wxdisplaysize} - -\func{void}{wxDisplaySize}{\param{int *}{width}, \param{int *}{height}} - -Gets the physical size of the display in pixels. - -\wxheading{Include files} - - \membersection{::wxEnableTopLevelWindows}\label{wxenabletoplevelwindows} -\func{void}{wxEnableTopLevelWindow}{\param{bool}{ enable = TRUE}} +\func{void}{wxEnableTopLevelWindow}{\param{bool}{ enable = true}} This function enables or disables all top level windows. It is used by \helpref{::wxSafeYield}{wxsafeyield}. @@ -2091,6 +2715,7 @@ This function enables or disables all top level windows. It is used by + \membersection{::wxFindMenuItemId}\label{wxfindmenuitemid} \func{int}{wxFindMenuItemId}{\param{wxFrame *}{frame}, \param{const wxString\& }{menuString}, \param{const wxString\& }{itemString}} @@ -2101,10 +2726,14 @@ Find a menu item identifier associated with the given frame's menu bar. + \membersection{::wxFindWindowByLabel}\label{wxfindwindowbylabel} \func{wxWindow *}{wxFindWindowByLabel}{\param{const wxString\& }{label}, \param{wxWindow *}{parent=NULL}} +{\bf NB:} This function is obsolete, please use +\helpref{wxWindow::FindWindowByLabel}{wxwindowfindwindowbylabel} instead. + Find a window by its label. Depending on the type of window, the label may be a window title or panel item label. If {\it parent} is NULL, the search will start from all top-level frames and dialog boxes; if non-NULL, the search will be limited to the given window hierarchy. @@ -2114,10 +2743,14 @@ The search is recursive in both cases. + \membersection{::wxFindWindowByName}\label{wxfindwindowbyname} \func{wxWindow *}{wxFindWindowByName}{\param{const wxString\& }{name}, \param{wxWindow *}{parent=NULL}} +{\bf NB:} This function is obsolete, please use +\helpref{wxWindow::FindWindowByName}{wxwindowfindwindowbyname} instead. + Find a window by its name (as given in a window constructor or {\bf Create} function call). If {\it parent} is NULL, the search will start from all top-level frames and dialog boxes; if non-NULL, the search will be limited to the given window hierarchy. @@ -2129,6 +2762,7 @@ If no such named window is found, {\bf wxFindWindowByLabel} is called. + \membersection{::wxFindWindowAtPoint}\label{wxfindwindowatpoint} \func{wxWindow *}{wxFindWindowAtPoint}{\param{const wxPoint\& }{pt}} @@ -2136,6 +2770,7 @@ If no such named window is found, {\bf wxFindWindowByLabel} is called. Find the deepest window at the given mouse position in screen coordinates, returning the window if found, or NULL if not. + \membersection{::wxFindWindowAtPointer}\label{wxfindwindowatpointer} \func{wxWindow *}{wxFindWindowAtPointer}{\param{wxPoint\& }{pt}} @@ -2143,6 +2778,7 @@ returning the window if found, or NULL if not. Find the deepest window at the mouse pointer position, returning the window and current pointer position in screen coordinates. + \membersection{::wxGetActiveWindow}\label{wxgetactivewindow} \func{wxWindow *}{wxGetActiveWindow}{\void} @@ -2153,6 +2789,7 @@ Gets the currently active window (Windows only). + \membersection{::wxGetDisplayName}\label{wxgetdisplayname} \func{wxString}{wxGetDisplayName}{\void} @@ -2163,6 +2800,7 @@ Under X only, returns the current display name. See also \helpref{wxSetDisplayNa + \membersection{::wxGetMousePosition}\label{wxgetmouseposition} \func{wxPoint}{wxGetMousePosition}{\void} @@ -2173,6 +2811,7 @@ Returns the mouse position in screen coordinates. + \membersection{::wxGetResource}\label{wxgetresource} \func{bool}{wxGetResource}{\param{const wxString\& }{section}, \param{const wxString\& }{entry}, @@ -2207,6 +2846,19 @@ See also \helpref{wxWriteResource}{wxwriteresource}, \helpref{wxConfigBase}{wxco + +\membersection{::wxGetTopLevelParent}\label{wxgettoplevelparent} + +\func{wxWindow *}{wxGetTopLevelParent}{\param{wxWindow }{*win}} + +Returns the first top level parent of the given window, or in other words, the +frame or dialog containing it, or {\tt NULL}. + +\wxheading{Include files} + + + + \membersection{::wxLoadUserResource}\label{wxloaduserresource} \func{wxString}{wxLoadUserResource}{\param{const wxString\& }{resourceName}, \param{const wxString\& }{resourceType=``TEXT"}} @@ -2222,16 +2874,13 @@ myResource TEXT file.ext where {\tt file.ext} is a file that the resource compiler can find. -One use of this is to store {\tt .wxr} files instead of including the data in the C++ file; some compilers -cannot cope with the long strings in a {\tt .wxr} file. The resource data can then be parsed -using \helpref{wxResourceParseString}{wxresourceparsestring}. - This function is available under Windows only. \wxheading{Include files} + \membersection{::wxPostDelete}\label{wxpostdelete} \func{void}{wxPostDelete}{\param{wxObject *}{object}} @@ -2247,30 +2896,22 @@ Now obsolete: use \helpref{wxWindow::Close}{wxwindowclose} instead. + \membersection{::wxPostEvent}\label{wxpostevent} \func{void}{wxPostEvent}{\param{wxEvtHandler *}{dest}, \param{wxEvent\& }{event}} -This function posts the event to the specified {\it dest} object. The -difference between sending an event and posting it is that in the first case -the event is processed before the function returns (in wxWindows, event sending -is done with \helpref{ProcessEvent}{wxevthandlerprocessevent} function), but in -the second, the function returns immediately and the event will be processed -sometime later - usually during the next even loop iteration. - -Note that a copy of the {\it event} is made by the function, so the original -copy can be deleted as soon as function returns. This function can also be used -to send events between different threads safely. As this function makes a -copy of the event, the event needs to have a fully implemented Clone() method, -which may not be the case for all event in wxWindows. - -See also \helpref{AddPendingEvent}{wxevthandleraddpendingevent} (which this function -uses internally). +In a GUI application, this function posts {\it event} to the specified {\it dest} +object using \helpref{wxEvtHandler::AddPendingEvent}{wxevthandleraddpendingevent}. +Otherwise, it dispatches {\it event} immediately using +\helpref{wxEvtHandler::ProcessEvent}{wxevthandlerprocessevent}. +See the respective documentation for details (and caveats). \wxheading{Include files} + \membersection{::wxSetDisplayName}\label{wxsetdisplayname} \func{void}{wxSetDisplayName}{\param{const wxString\& }{displayName}} @@ -2286,13 +2927,14 @@ See also \helpref{wxGetDisplayName}{wxgetdisplayname}. + \membersection{::wxStripMenuCodes}\label{wxstripmenucodes} \func{wxString}{wxStripMenuCodes}{\param{const wxString\& }{in}} \func{void}{wxStripMenuCodes}{\param{char *}{in}, \param{char *}{out}} -This function is obsolete, please use +{\bf NB:} This function is obsolete, please use \helpref{wxMenuItem::GetLabelFromText}{wxmenuitemgetlabelfromtext} instead. Strips any menu codes from {\it in} and places the result @@ -2305,6 +2947,29 @@ as a keyboard shortkey in Windows and Motif) and $\backslash$t (tab in Windows). + +\membersection{wxULL}\label{wxull} + +\func{wxLongLong\_t}{wxULL}{\param{}{number}} + +This macro is defined for the platforms with a native 64 bit integer type and +allows to define unsigned 64 bit compile time constants: + +\begin{verbatim} + #ifdef wxLongLong_t + unsigned wxLongLong_t ll = wxULL(0x1234567890abcdef); + #endif +\end{verbatim} + +\wxheading{Include files} + + + +\wxheading{See also} + +\helpref{wxLL}{wxll}, \helpref{wxLongLong}{wxlonglong} + + \membersection{::wxWriteResource}\label{wxwriteresource} \func{bool}{wxWriteResource}{\param{const wxString\& }{section}, \param{const wxString\& }{entry}, @@ -2336,7 +3001,9 @@ See also \helpref{wxGetResource}{wxgetresource}, \helpref{wxConfigBase}{wxconfig -\section{Byte order macros}\label{macros} + + +\section{Byte order macros}\label{byteordermacros} The endian-ness issues (that is the difference between big-endian and little-endian architectures) are important for the portable programs working @@ -2344,6 +3011,7 @@ with the external binary data (for example, data files or data coming from network) which is usually in some fixed, platform-independent format. The macros are helpful for transforming the data to the correct format. + \membersection{wxINTXX\_SWAP\_ALWAYS}\label{intswapalways} \func{wxInt32}{wxINT32\_SWAP\_ALWAYS}{\param{wxInt32 }{value}} @@ -2358,6 +3026,7 @@ These macros will swap the bytes of the {\it value} variable from little endian to big endian or vice versa unconditionally, i.e. independently of the current platform. + \membersection{wxINTXX\_SWAP\_ON\_BE}\label{intswaponbe} \func{wxInt32}{wxINT32\_SWAP\_ON\_BE}{\param{wxInt32 }{value}} @@ -2376,6 +3045,7 @@ been compiled on a little-endian architecture, the value will be unchanged. Use these macros to read data from and write data to a file that stores data in little-endian (for example Intel i386) format. + \membersection{wxINTXX\_SWAP\_ON\_LE}\label{intswaponle} \func{wxInt32}{wxINT32\_SWAP\_ON\_LE}{\param{wxInt32 }{value}} @@ -2394,22 +3064,25 @@ been compiled on a big-endian architecture, the value will be unchanged. Use these macros to read data from and write data to a file that stores data in big-endian format. -\section{RTTI functions}\label{macros} -wxWindows uses its own RTTI ("run-time type identification") system which + +\section{RTTI functions}\label{rttimacros} + +wxWidgets uses its own RTTI ("run-time type identification") system which predates the current standard C++ RTTI and so is kept for backwards -compatribility reasons but also because it allows some things which the +compatibility reasons but also because it allows some things which the standard RTTI doesn't directly support (such as creating a class from its name). The standard C++ RTTI can be used in the user code without any problems and in general you shouldn't need to use the functions and the macros in this section -unless you are thinking of modifying or adding any wxWindows classes. +unless you are thinking of modifying or adding any wxWidgets classes. \wxheading{See also} \helpref{RTTI overview}{runtimeclassoverview} + \membersection{CLASSINFO}\label{classinfo} \func{wxClassInfo *}{CLASSINFO}{className} @@ -2420,6 +3093,7 @@ Returns a pointer to the wxClassInfo object associated with this class. + \membersection{DECLARE\_ABSTRACT\_CLASS}\label{declareabstractclass} \func{}{DECLARE\_ABSTRACT\_CLASS}{className} @@ -2446,12 +3120,15 @@ class wxCommand: public wxObject + \membersection{DECLARE\_APP}\label{declareapp} \func{}{DECLARE\_APP}{className} -This is used in headers to create a forward declaration of the wxGetApp function implemented -by IMPLEMENT\_APP. It creates the declaration {\tt className\& wxGetApp(void)}. +This is used in headers to create a forward declaration of the +\helpref{wxGetApp}{wxgetapp} function implemented by +\helpref{IMPLEMENT\_APP}{implementapp}. It creates the declaration +{\tt className\& wxGetApp(void)}. Example: @@ -2463,6 +3140,7 @@ Example: + \membersection{DECLARE\_CLASS}\label{declareclass} \func{}{DECLARE\_CLASS}{className} @@ -2475,6 +3153,7 @@ dynamically. The same as DECLARE\_ABSTRACT\_CLASS. + \membersection{DECLARE\_DYNAMIC\_CLASS}\label{declaredynamicclass} \func{}{DECLARE\_DYNAMIC\_CLASS}{className} @@ -2490,7 +3169,7 @@ class wxFrame: public wxWindow DECLARE_DYNAMIC_CLASS(wxFrame) private: - const wxString\& frameTitle; + const wxString& frameTitle; public: ... }; @@ -2500,6 +3179,7 @@ class wxFrame: public wxWindow + \membersection{IMPLEMENT\_ABSTRACT\_CLASS}\label{implementabstractclass} \func{}{IMPLEMENT\_ABSTRACT\_CLASS}{className, baseClassName} @@ -2522,6 +3202,7 @@ wxCommand::wxCommand(void) + \membersection{IMPLEMENT\_ABSTRACT\_CLASS2}\label{implementabstractclass2} \func{}{IMPLEMENT\_ABSTRACT\_CLASS2}{className, baseClassName1, baseClassName2} @@ -2533,12 +3214,13 @@ a class that has run-time type information and two base classes. The same as IMP + \membersection{IMPLEMENT\_APP}\label{implementapp} \func{}{IMPLEMENT\_APP}{className} This is used in the application class implementation file to make the application class known to -wxWindows for dynamic construction. You use this instead of +wxWidgets for dynamic construction. You use this instead of Old form: @@ -2558,6 +3240,7 @@ See also \helpref{DECLARE\_APP}{declareapp}. + \membersection{IMPLEMENT\_CLASS}\label{implementclass} \func{}{IMPLEMENT\_CLASS}{className, baseClassName} @@ -2569,6 +3252,7 @@ a class that has run-time type information. The same as IMPLEMENT\_ABSTRACT\_CLA + \membersection{IMPLEMENT\_CLASS2}\label{implementclass2} \func{}{IMPLEMENT\_CLASS2}{className, baseClassName1, baseClassName2} @@ -2581,6 +3265,7 @@ same as IMPLEMENT\_ABSTRACT\_CLASS2. + \membersection{IMPLEMENT\_DYNAMIC\_CLASS}\label{implementdynamicclass} \func{}{IMPLEMENT\_DYNAMIC\_CLASS}{className, baseClassName} @@ -2604,6 +3289,7 @@ wxFrame::wxFrame(void) + \membersection{IMPLEMENT\_DYNAMIC\_CLASS2}\label{implementdynamicclass2} \func{}{IMPLEMENT\_DYNAMIC\_CLASS2}{className, baseClassName1, baseClassName2} @@ -2617,6 +3303,7 @@ base classes. + \membersection{wxConstCast}\label{wxconstcast} \func{classname *}{wxConstCast}{ptr, classname} @@ -2626,9 +3313,11 @@ supports {\it const\_cast} or into an old, C-style cast, otherwise. \wxheading{See also} +\helpref{wx\_const\_cast}{wxconstcastraw}\\ \helpref{wxDynamicCast}{wxdynamiccast}\\ \helpref{wxStaticCast}{wxstaticcast} + \membersection{::wxCreateDynamicObject}\label{wxcreatedynamicobject} \func{wxObject *}{wxCreateDynamicObject}{\param{const wxString\& }{className}} @@ -2636,6 +3325,7 @@ supports {\it const\_cast} or into an old, C-style cast, otherwise. Creates and returns an object of the given class, if the class has been registered with the dynamic class system using DECLARE... and IMPLEMENT... macros. + \membersection{WXDEBUG\_NEW}\label{debugnew} \func{}{WXDEBUG\_NEW}{arg} @@ -2653,6 +3343,7 @@ In non-debug mode, this is defined as the normal new operator. + \membersection{wxDynamicCast}\label{wxdynamiccast} \func{classname *}{wxDynamicCast}{ptr, classname} @@ -2687,6 +3378,7 @@ Example: \helpref{wxConstCast}{wxconstcast}\\ \helpref{wxStatiicCast}{wxstaticcast} + \membersection{wxDynamicCastThis}\label{wxdynamiccastthis} \func{classname *}{wxDynamicCastThis}{classname} @@ -2700,6 +3392,7 @@ this macro should be used to avoid them. \helpref{wxDynamicCast}{wxdynamiccast} + \membersection{wxStaticCast}\label{wxstaticcast} \func{classname *}{wxStaticCast}{ptr, classname} @@ -2708,220 +3401,61 @@ This macro checks that the cast is valid in debug mode (an assert failure will result if {\tt wxDynamicCast(ptr, classname) == NULL}) and then returns the result of executing an equivalent of {\tt static\_cast(ptr)}. +\wxheading{See also} + +\helpref{wx\_static\_cast}{wxstaticcastraw}\\ \helpref{wxDynamicCast}{wxdynamiccast}\\ \helpref{wxConstCast}{wxconstcast} -\section{Resource functions}\label{resourcefuncs} - -\overview{Resource functions}{resourceformats} - -This section details functions for manipulating wxWindows (.WXR) resource -files and loading user interface elements from resources. - -\normalbox{Please note that this use of the word `resource' is different from that used when talking -about initialisation file resource reading and writing, using such functions -as wxWriteResource and wxGetResource. It is just an unfortunate clash of terminology.} - -\helponly{For an overview of the wxWindows resource mechanism, see \helpref{the wxWindows resource system}{resourceformats}.} - -See also \helpref{wxWindow::LoadFromResource}{wxwindowloadfromresource} for -loading from resource data. - -\membersection{::wxResourceAddIdentifier}\label{wxresourceaddidentifier} - -\func{bool}{wxResourceAddIdentifier}{\param{const wxString\& }{name}, \param{int }{value}} - -Used for associating a name with an integer identifier (equivalent to dynamically\rtfsp -\tt{#}defining a name to an integer). Unlikely to be used by an application except -perhaps for implementing resource functionality for interpreted languages. - -\membersection{::wxResourceClear}\label{wxresourceclear} - -\func{void}{wxResourceClear}{\void} - -Clears the wxWindows resource table. - -\membersection{::wxResourceCreateBitmap}\label{wxresourcecreatebitmap} - -\func{wxBitmap *}{wxResourceCreateBitmap}{\param{const wxString\& }{resource}} - -Creates a new bitmap from a file, static data, or Windows resource, given a valid -wxWindows bitmap resource identifier. For example, if the .WXR file contains -the following: - -\begin{verbatim} -static const wxString\& project_resource = "bitmap(name = 'project_resource',\ - bitmap = ['project', wxBITMAP_TYPE_BMP_RESOURCE, 'WINDOWS'],\ - bitmap = ['project.xpm', wxBITMAP_TYPE_XPM, 'X'])."; -\end{verbatim} - -then this function can be called as follows: - -\begin{verbatim} - wxBitmap *bitmap = wxResourceCreateBitmap("project_resource"); -\end{verbatim} - -\membersection{::wxResourceCreateIcon}\label{wxresourcecreateicon} - -\func{wxIcon *}{wxResourceCreateIcon}{\param{const wxString\& }{resource}} - -Creates a new icon from a file, static data, or Windows resource, given a valid -wxWindows icon resource identifier. For example, if the .WXR file contains -the following: - -\begin{verbatim} -static const wxString\& project_resource = "icon(name = 'project_resource',\ - icon = ['project', wxBITMAP_TYPE_ICO_RESOURCE, 'WINDOWS'],\ - icon = ['project', wxBITMAP_TYPE_XBM_DATA, 'X'])."; -\end{verbatim} - -then this function can be called as follows: - -\begin{verbatim} - wxIcon *icon = wxResourceCreateIcon("project_resource"); -\end{verbatim} - -\membersection{::wxResourceCreateMenuBar}\label{wxresourcecreatemenubar} - -\func{wxMenuBar *}{wxResourceCreateMenuBar}{\param{const wxString\& }{resource}} - -Creates a new menu bar given a valid wxWindows menubar resource -identifier. For example, if the .WXR file contains the following: - -\begin{verbatim} -static const wxString\& menuBar11 = "menu(name = 'menuBar11',\ - menu = \ - [\ - ['&File', 1, '', \ - ['&Open File', 2, 'Open a file'],\ - ['&Save File', 3, 'Save a file'],\ - [],\ - ['E&xit', 4, 'Exit program']\ - ],\ - ['&Help', 5, '', \ - ['&About', 6, 'About this program']\ - ]\ - ])."; -\end{verbatim} - -then this function can be called as follows: - -\begin{verbatim} - wxMenuBar *menuBar = wxResourceCreateMenuBar("menuBar11"); -\end{verbatim} - - -\membersection{::wxResourceGetIdentifier}\label{wxresourcegetidentifier} - -\func{int}{wxResourceGetIdentifier}{\param{const wxString\& }{name}} - -Used for retrieving the integer value associated with an identifier. -A zero value indicates that the identifier was not found. -See \helpref{wxResourceAddIdentifier}{wxresourceaddidentifier}. +\membersection{wx\_const\_cast}\label{wxconstcastraw} -\membersection{::wxResourceParseData}\label{wxresourcedata} +\func{T}{wx\_const\_cast}{T, x} -\func{bool}{wxResourceParseData}{\param{const wxString\& }{resource}, \param{wxResourceTable *}{table = NULL}} +Same as \texttt{const\_cast(x)} if the compiler supports const cast or +\texttt{(T)x} for old compilers. Unlike \helpref{wxConstCast}{wxconstcast}, +the cast it to the type \arg{T} and not to \texttt{T *} and also the order of +arguments is the same as for the standard cast. -Parses a string containing one or more wxWindows resource objects. If -the resource objects are global static data that are included into the -C++ program, then this function must be called for each variable -containing the resource data, to make it known to wxWindows. - -{\it resource} should contain data in the following form: - -\begin{verbatim} -dialog(name = 'dialog1', - style = 'wxCAPTION | wxDEFAULT_DIALOG_STYLE', - title = 'Test dialog box', - x = 312, y = 234, width = 400, height = 300, - modal = 0, - control = [1000, wxStaticBox, 'Groupbox', '0', 'group6', 5, 4, 380, 262, - [11, 'wxSWISS', 'wxNORMAL', 'wxNORMAL', 0]], - control = [1001, wxTextCtrl, '', 'wxTE_MULTILINE', 'text3', - 156, 126, 200, 70, 'wxWindows is a multi-platform, GUI toolkit.', - [11, 'wxSWISS', 'wxNORMAL', 'wxNORMAL', 0], - [11, 'wxSWISS', 'wxNORMAL', 'wxNORMAL', 0]]). -\end{verbatim} - -This function will typically be used after including a {\tt .wxr} file into -a C++ program as follows: - -\begin{verbatim} -#include "dialog1.wxr" -\end{verbatim} - -Each of the contained resources will declare a new C++ variable, and each -of these variables should be passed to wxResourceParseData. - -\membersection{::wxResourceParseFile}\label{wxresourceparsefile} - -\func{bool}{wxResourceParseFile}{\param{const wxString\& }{filename}, \param{wxResourceTable *}{table = NULL}} - -Parses a file containing one or more wxWindows resource objects -in C++-compatible syntax. Use this function to dynamically load -wxWindows resource data. - -\membersection{::wxResourceParseString}\label{wxresourceparsestring} - -\func{bool}{wxResourceParseString}{\param{char *}{s}, \param{wxResourceTable *}{table = NULL}} - -Parses a string containing one or more wxWindows resource objects. If -the resource objects are global static data that are included into the -C++ program, then this function must be called for each variable -containing the resource data, to make it known to wxWindows. +\wxheading{See also} -{\it resource} should contain data with the following form: +\helpref{wx\_static\_cast}{wxstaticcastraw}\\ -\begin{verbatim} -dialog(name = 'dialog1', - style = 'wxCAPTION | wxDEFAULT_DIALOG_STYLE', - title = 'Test dialog box', - x = 312, y = 234, width = 400, height = 300, - modal = 0, - control = [1000, wxStaticBox, 'Groupbox', '0', 'group6', 5, 4, 380, 262, - [11, 'wxSWISS', 'wxNORMAL', 'wxNORMAL', 0]], - control = [1001, wxTextCtrl, '', 'wxTE_MULTILINE', 'text3', - 156, 126, 200, 70, 'wxWindows is a multi-platform, GUI toolkit.', - [11, 'wxSWISS', 'wxNORMAL', 'wxNORMAL', 0], - [11, 'wxSWISS', 'wxNORMAL', 'wxNORMAL', 0]]). -\end{verbatim} -This function will typically be used after calling \helpref{wxLoadUserResource}{wxloaduserresource} to -load an entire {\tt .wxr file} into a string. +\membersection{wx\_static\_cast}\label{wxstaticcastraw} -\membersection{::wxResourceRegisterBitmapData}\label{registerbitmapdata} +\func{T}{wx\_static\_cast}{T, x} -\func{bool}{wxResourceRegisterBitmapData}{\param{const wxString\& }{name}, \param{char *}{xbm\_data}, \param{int }{width}, -\param{int }{height}, \param{wxResourceTable *}{table = NULL}} +Same as \texttt{static\_cast(x)} if the compiler supports static cast or +\texttt{(T)x} for old compilers. Unlike \helpref{wxStaticCast}{wxstaticcast}, +there are no checks being done and the meaning of the macro arguments is exactly +the same as for the standard static cast, i.e. \arg{T} is the full type name and +star is not appended to it. -\func{bool}{wxResourceRegisterBitmapData}{\param{const wxString\& }{name}, \param{char **}{xpm\_data}} +\wxheading{See also} -Makes \tt{#}included XBM or XPM bitmap data known to the wxWindows resource system. -This is required if other resources will use the bitmap data, since otherwise there -is no connection between names used in resources, and the global bitmap data. +\helpref{wx\_const\_cast}{wxconstcastraw}\\ -\membersection{::wxResourceRegisterIconData}\label{wxresourceregistericondata} -Another name for \helpref{wxResourceRegisterBitmapData}{registerbitmapdata}. \section{Log functions}\label{logfunctions} These functions provide a variety of logging functions: see \helpref{Log classes overview}{wxlogoverview} for further information. The functions use (implicitly) the currently active log target, so their descriptions here may not apply if the log target is not the -standard one (installed by wxWindows in the beginning of the program). +standard one (installed by wxWidgets in the beginning of the program). \wxheading{Include files} + \membersection{::wxDebugMsg}\label{wxdebugmsg} \func{void}{wxDebugMsg}{\param{const wxString\& }{fmt}, \param{...}{}} -{\bf This function is deprecated, use \helpref{wxLogDebug}{wxlogdebug} instead!} +{\bf NB:} This function is now obsolete, replaced by \helpref{Log +functions}{logfunctions} and \helpref{wxLogDebug}{wxlogdebug} in particular. Display a debugging message; under Windows, this will appear on the debugger command window, and under Unix, it will be written to standard @@ -2936,42 +3470,43 @@ each wxDebugMsg call. wxDebugMsg seems to be broken under WIN32s (at least for Watcom C++): preformat your messages and use OutputDebugString instead. -This function is now obsolete, replaced by \helpref{Log functions}{logfunctions}. - \wxheading{Include files} + \membersection{::wxError}\label{wxerror} -\func{void}{wxError}{\param{const wxString\& }{msg}, \param{const wxString\& }{title = "wxWindows Internal Error"}} +\func{void}{wxError}{\param{const wxString\& }{msg}, \param{const wxString\& }{title = "wxWidgets Internal Error"}} -This function is now obsolete, please use \helpref{wxLogError}{wxlogerror} +{\bf NB:} This function is now obsolete, please use \helpref{wxLogError}{wxlogerror} instead. Displays {\it msg} and continues. This writes to standard error under Unix, and pops up a message box under Windows. Used for internal -wxWindows errors. See also \helpref{wxFatalError}{wxfatalerror}. +wxWidgets errors. See also \helpref{wxFatalError}{wxfatalerror}. \wxheading{Include files} + \membersection{::wxFatalError}\label{wxfatalerror} -\func{void}{wxFatalError}{\param{const wxString\& }{msg}, \param{const wxString\& }{title = "wxWindows Fatal Error"}} +\func{void}{wxFatalError}{\param{const wxString\& }{msg}, \param{const wxString\& }{title = "wxWidgets Fatal Error"}} -This function is now obsolete, please use +{\bf NB:} This function is now obsolete, please use \helpref{wxLogFatalError}{wxlogfatalerror} instead. Displays {\it msg} and exits. This writes to standard error under Unix, and pops up a message box under Windows. Used for fatal internal -wxWindows errors. See also \helpref{wxError}{wxerror}. +wxWidgets errors. See also \helpref{wxError}{wxerror}. \wxheading{Include files} + \membersection{::wxLogError}\label{wxlogerror} \func{void}{wxLogError}{\param{const char *}{formatString}, \param{...}{}} @@ -2982,6 +3517,7 @@ The functions to use for error messages, i.e. the messages that must be shown to the user. The default processing is to pop up a message box to inform the user about it. + \membersection{::wxLogFatalError}\label{wxlogfatalerror} \func{void}{wxLogFatalError}{\param{const char *}{formatString}, \param{...}{}} @@ -2992,6 +3528,7 @@ Like \helpref{wxLogError}{wxlogerror}, but also terminates the program with the exit code 3. Using {\it abort()} standard function also terminates the program with this exit code. + \membersection{::wxLogWarning}\label{wxlogwarning} \func{void}{wxLogWarning}{\param{const char *}{formatString}, \param{...}{}} @@ -3001,6 +3538,7 @@ function also terminates the program with this exit code. For warnings - they are also normally shown to the user, but don't interrupt the program work. + \membersection{::wxLogMessage}\label{wxlogmessage} \func{void}{wxLogMessage}{\param{const char *}{formatString}, \param{...}{}} @@ -3013,6 +3551,7 @@ show informational messages if there are any errors later - the logic being that the later error messages make the informational messages preceding them meaningless. + \membersection{::wxLogVerbose}\label{wxlogverbose} \func{void}{wxLogVerbose}{\param{const char *}{formatString}, \param{...}{}} @@ -3023,6 +3562,7 @@ For verbose output. Normally, it is suppressed, but might be activated if the user wishes to know more details about the program progress (another, but possibly confusing name for the same function is {\bf wxLogInfo}). + \membersection{::wxLogStatus}\label{wxlogstatus} \func{void}{wxLogStatus}{\param{wxFrame *}{frame}, \param{const char *}{formatString}, \param{...}{}} @@ -3039,13 +3579,14 @@ the second version of the functions). If the target frame doesn't have a statusbar, the message will be lost. + \membersection{::wxLogSysError}\label{wxlogsyserror} \func{void}{wxLogSysError}{\param{const char *}{formatString}, \param{...}{}} \func{void}{wxVLogSysError}{\param{const char *}{formatString}, \param{va\_list }{argPtr}} -Mostly used by wxWindows itself, but might be handy for logging errors after +Mostly used by wxWidgets itself, but might be handy for logging errors after system call (API function) failure. It logs the specified message text as well as the last system error code ({\it errno} or {\it ::GetLastError()} depending on the platform) and the corresponding error message. The second form @@ -3056,6 +3597,7 @@ of this function takes the error code explicitly as the first argument. \helpref{wxSysErrorCode}{wxsyserrorcode}, \helpref{wxSysErrorMsg}{wxsyserrormsg} + \membersection{::wxLogDebug}\label{wxlogdebug} \func{void}{wxLogDebug}{\param{const char *}{formatString}, \param{...}{}} @@ -3066,6 +3608,7 @@ The right functions for debug output. They only do something in debug mode (when the preprocessor symbol \_\_WXDEBUG\_\_ is defined) and expand to nothing in release mode (otherwise). + \membersection{::wxLogTrace}\label{wxlogtrace} \func{void}{wxLogTrace}{\param{const char *}{formatString}, \param{...}{}} @@ -3093,8 +3636,10 @@ the value of the trace mask (possible during the run-time). For the second function (taking a string mask), the message is logged only if the mask has been previously enabled by the call to -\helpref{AddTraceMask}{wxlogaddtracemask}. The predefined string trace masks -used by wxWindows are: +\helpref{AddTraceMask}{wxlogaddtracemask} or by setting +\helpref{{\tt WXTRACE} environment variable}{envvars}. +The predefined string trace masks +used by wxWidgets are: \begin{itemize}\itemsep=0pt \item wxTRACE\_MemAlloc: trace memory allocation (new/delete) @@ -3119,6 +3664,34 @@ trace masks. \item wxTraceOleCalls: trace OLE method calls (Win32 only) \end{itemize} + +\membersection{::wxSafeShowMessage}\label{wxsafeshowmessage} + +\func{void}{wxSafeShowMessage}{\param{const wxString\& }{title}, \param{const wxString\& }{text}} + +This function shows a message to the user in a safe way and should be safe to +call even before the application has been initialized or if it is currently in +some other strange state (for example, about to crash). Under Windows this +function shows a message box using a native dialog instead of +\helpref{wxMessageBox}{wxmessagebox} (which might be unsafe to call), elsewhere +it simply prints the message to the standard output using the title as prefix. + +\wxheading{Parameters} + +\docparam{title}{The title of the message box shown to the user or the prefix +of the message string} + +\docparam{text}{The text to show to the user} + +\wxheading{See also} + +\helpref{wxLogFatalError}{wxlogfatalerror} + +\wxheading{Include files} + + + + \membersection{::wxSysErrorCode}\label{wxsyserrorcode} \func{unsigned long}{wxSysErrorCode}{\void} @@ -3131,6 +3704,7 @@ Returns the error code from the last system call. This function uses \helpref{wxSysErrorMsg}{wxsyserrormsg}, \helpref{wxLogSysError}{wxlogsyserror} + \membersection{::wxSysErrorMsg}\label{wxsyserrormsg} \func{const wxChar *}{wxSysErrorMsg}{\param{unsigned long }{errCode = 0}} @@ -3144,6 +3718,7 @@ Returns the error message corresponding to the given system error code. If \helpref{wxSysErrorCode}{wxsyserrorcode}, \helpref{wxLogSysError}{wxlogsyserror} + \membersection{WXTRACE}\label{trace} \wxheading{Include files} @@ -3152,60 +3727,65 @@ Returns the error message corresponding to the given system error code. If \func{}{WXTRACE}{formatString, ...} +{\bf NB:} This macro is now obsolete, replaced by \helpref{Log functions}{logfunctions}. + Calls wxTrace with printf-style variable argument syntax. Output is directed to the current output stream (see \helpref{wxDebugContext}{wxdebugcontextoverview}). -This macro is now obsolete, replaced by \helpref{Log functions}{logfunctions}. - \wxheading{Include files} + \membersection{WXTRACELEVEL}\label{tracelevel} \func{}{WXTRACELEVEL}{level, formatString, ...} +{\bf NB:} This function is now obsolete, replaced by \helpref{Log functions}{logfunctions}. + Calls wxTraceLevel with printf-style variable argument syntax. Output is directed to the current output stream (see \helpref{wxDebugContext}{wxdebugcontextoverview}). The first argument should be the level at which this information is appropriate. It will only be output if the level returned by wxDebugContext::GetLevel is equal to or greater than this value. -This function is now obsolete, replaced by \helpref{Log functions}{logfunctions}. - \wxheading{Include files} + \membersection{::wxTrace}\label{wxtrace} \func{void}{wxTrace}{\param{const wxString\& }{fmt}, \param{...}{}} +{\bf NB:} This function is now obsolete, replaced by \helpref{Log functions}{logfunctions}. + Takes printf-style variable argument syntax. Output is directed to the current output stream (see \helpref{wxDebugContext}{wxdebugcontextoverview}). -This function is now obsolete, replaced by \helpref{Log functions}{logfunctions}. - \wxheading{Include files} + \membersection{::wxTraceLevel}\label{wxtracelevel} \func{void}{wxTraceLevel}{\param{int}{ level}, \param{const wxString\& }{fmt}, \param{...}{}} +{\bf NB:} This function is now obsolete, replaced by \helpref{Log functions}{logfunctions}. + Takes printf-style variable argument syntax. Output is directed to the current output stream (see \helpref{wxDebugContext}{wxdebugcontextoverview}). The first argument should be the level at which this information is appropriate. It will only be output if the level returned by wxDebugContext::GetLevel is equal to or greater than this value. -This function is now obsolete, replaced by \helpref{Log functions}{logfunctions}. - \wxheading{Include files} + + \section{Time functions}\label{timefunctions} The functions in this section deal with getting the current time and @@ -3216,13 +3796,14 @@ should be used instead. For retrieving the current time, you may also use \helpref{wxDateTime::Now}{wxdatetimenow} or \helpref{wxDateTime::UNow}{wxdatetimeunow} methods. + \membersection{::wxGetElapsedTime}\label{wxgetelapsedtime} -\func{long}{wxGetElapsedTime}{\param{bool}{ resetTimer = TRUE}} +\func{long}{wxGetElapsedTime}{\param{bool}{ resetTimer = true}} Gets the time in milliseconds since the last \helpref{::wxStartTimer}{wxstarttimer}. -If {\it resetTimer} is TRUE (the default), the timer is reset to zero +If {\it resetTimer} is true (the default), the timer is reset to zero by this call. See also \helpref{wxTimer}{wxtimer}. @@ -3231,6 +3812,7 @@ See also \helpref{wxTimer}{wxtimer}. + \membersection{::wxGetLocalTime}\label{wxgetlocaltime} \func{long}{wxGetLocalTime}{\void} @@ -3245,21 +3827,23 @@ Returns the number of seconds since local time 00:00:00 Jan 1st 1970. + \membersection{::wxGetLocalTimeMillis}\label{wxgetlocaltimemillis} -\func{wxLongLone}{wxGetLocalTimeMillis}{\void} +\func{wxLongLong}{wxGetLocalTimeMillis}{\void} Returns the number of milliseconds since local time 00:00:00 Jan 1st 1970. \wxheading{See also} \helpref{wxDateTime::Now}{wxdatetimenow},\\ -\helpref{wxLongLone}{wxlonglong} +\helpref{wxLongLong}{wxlonglong} \wxheading{Include files} + \membersection{::wxGetUTCTime}\label{wxgetutctime} \func{long}{wxGetUTCTime}{\void} @@ -3274,6 +3858,34 @@ Returns the number of seconds since GMT 00:00:00 Jan 1st 1970. + +\membersection{::wxMicroSleep}\label{wxmicrosleep} + +\func{void}{wxMicroSleep}{\param{unsigned long}{ microseconds}} + +Sleeps for the specified number of microseconds. The microsecond resolution may +not, in fact, be available on all platforms (currently only Unix platforms with +nanosleep(2) may provide it) in which case this is the same as +\helpref{wxMilliSleep}{wxmillisleep}(\arg{microseconds}$/1000$). + +\wxheading{Include files} + + + + +\membersection{::wxMilliSleep}\label{wxmillisleep} + +\func{void}{wxMilliSleep}{\param{unsigned long}{ milliseconds}} + +Sleeps for the specified number of milliseconds. Notice that usage of this +function is encouraged instead of calling usleep(3) directly because the +standard usleep() function is not MT safe. + +\wxheading{Include files} + + + + \membersection{::wxNow}\label{wxnow} \func{wxString}{wxNow}{\void} @@ -3284,6 +3896,7 @@ Returns a string representing the current date and time. + \membersection{::wxSleep}\label{wxsleep} \func{void}{wxSleep}{\param{int}{ secs}} @@ -3294,6 +3907,7 @@ Sleeps for the specified number of seconds. + \membersection{::wxStartTimer}\label{wxstarttimer} \func{void}{wxStartTimer}{\void} @@ -3306,56 +3920,135 @@ See also \helpref{wxTimer}{wxtimer}. + \membersection{::wxUsleep}\label{wxusleep} \func{void}{wxUsleep}{\param{unsigned long}{ milliseconds}} -Sleeps for the specified number of milliseconds. Notice that usage of this -function is encouraged instead of calling usleep(3) directly because the -standard usleep() function is not MT safe. +This function is deprecated because its name is misleading: notice that the +argument is in milliseconds, not microseconds. Please use either +\helpref{wxMilliSleep}{wxmillisleep} or \helpref{wxMicroSleep}{wxmicrosleep} +depending on the resolution you need. -\wxheading{Include files} - \section{Debugging macros and functions}\label{debugmacros} -Useful macros and functions for error checking and defensive programming. ASSERTs are only -compiled if \_\_WXDEBUG\_\_ is defined, whereas CHECK macros stay in release -builds. +Useful macros and functions for error checking and defensive programming. +wxWidgets defines three families of the assert-like macros: +the wxASSERT and wxFAIL macros only do anything if \_\_WXDEBUG\_\_ is defined +(in other words, in the debug build) but disappear completely in the release +build. On the other hand, the wxCHECK macros stay event in release builds but a +check failure doesn't generate any user-visible effects then. Finally, the +compile time assertions don't happen during the run-time but result in the +compilation error messages if the condition they check fail. \wxheading{Include files} + \membersection{::wxOnAssert}\label{wxonassert} -\func{void}{wxOnAssert}{\param{const char *}{fileName}, \param{int}{ lineNumber}, \param{const char *}{msg = NULL}} +\func{void}{wxOnAssert}{\param{const char *}{fileName}, \param{int}{ lineNumber}, \param{const char *}{cond}, \param{const char *}{msg = NULL}} + +This function is called whenever one of debugging macros fails (i.e. condition +is false in an assertion). It is only defined in the debug mode, in release +builds the \helpref{wxCHECK}{wxcheck} failures don't result in anything. + +To override the default behaviour in the debug builds which is to show the user +a dialog asking whether he wants to abort the program, continue or continue +ignoring any subsequent assert failures, you may override +\helpref{wxApp::OnAssert}{wxapponassert} which is called by this function if +the global application object exists. -This function may be redefined to do something non trivial and is called -whenever one of debugging macros fails (i.e. condition is false in an -assertion). -% TODO: this should probably be an overridable in wxApp. \membersection{wxASSERT}\label{wxassert} \func{}{wxASSERT}{\param{}{condition}} -Assert macro. An error message will be generated if the condition is FALSE in +Assert macro. An error message will be generated if the condition is false in debug mode, but nothing will be done in the release build. Please note that the condition in wxASSERT() should have no side effects because it will not be executed in release mode at all. -See also: \helpref{wxASSERT\_MSG}{wxassertmsg} +\wxheading{See also} + +\helpref{wxASSERT\_MSG}{wxassertmsg},\\ +\helpref{wxCOMPILE\_TIME\_ASSERT}{wxcompiletimeassert} + + +\membersection{wxASSERT\_MIN\_BITSIZE}\label{wxassertminbitsize} + +\func{}{wxASSERT\_MIN\_BITSIZE}{\param{}{type}, \param{}{size}} + +This macro results in a +\helpref{compile time assertion failure}{wxcompiletimeassert} if the size +of the given type {\it type} is less than {\it size} bits. + +You may use it like this, for example: + +\begin{verbatim} + // we rely on the int being able to hold values up to 2^32 + wxASSERT_MIN_BITSIZE(int, 32); + + // can't work with the platforms using UTF-8 for wchar_t + wxASSERT_MIN_BITSIZE(wchar_t, 16); +\end{verbatim} + \membersection{wxASSERT\_MSG}\label{wxassertmsg} \func{}{wxASSERT\_MSG}{\param{}{condition}, \param{}{msg}} -Assert macro with message. An error message will be generated if the condition is FALSE. +Assert macro with message. An error message will be generated if the condition is false. + +\wxheading{See also} + +\helpref{wxASSERT}{wxassert},\\ +\helpref{wxCOMPILE\_TIME\_ASSERT}{wxcompiletimeassert} + + +\membersection{wxCOMPILE\_TIME\_ASSERT}\label{wxcompiletimeassert} + +\func{}{wxCOMPILE\_TIME\_ASSERT}{\param{}{condition}, \param{}{msg}} + +Using {\tt wxCOMPILE\_TIME\_ASSERT} results in a compilation error if the +specified {\it condition} is false. The compiler error message should include +the {\it msg} identifier - please note that it must be a valid C++ identifier +and not a string unlike in the other cases. + +This macro is mostly useful for testing the expressions involving the +{\tt sizeof} operator as they can't be tested by the preprocessor but it is +sometimes desirable to test them at the compile time. + +Note that this macro internally declares a struct whose name it tries to make +unique by using the {\tt \_\_LINE\_\_} in it but it may still not work if you +use it on the same line in two different source files. In this case you may +either change the line in which either of them appears on or use the +\helpref{wxCOMPILE\_TIME\_ASSERT2}{wxcompiletimeassert2} macro. + +Also note that Microsoft Visual C++ has a bug which results in compiler errors +if you use this macro with ``Program Database For Edit And Continue'' +(\texttt{/ZI}) option, so you shouldn't use it (``Program Database'' +(\texttt{/Zi}) is ok though) for the code making use of this macro. + +\wxheading{See also} + +\helpref{wxASSERT\_MSG}{wxassertmsg},\\ +\helpref{wxASSERT\_MIN\_BITSIZE}{wxassertminbitsize} + + +\membersection{wxCOMPILE\_TIME\_ASSERT2}\label{wxcompiletimeassert2} + +\func{}{wxCOMPILE\_TIME\_ASSERT}{\param{}{condition}, \param{}{msg}, \param{}{name}} + +This macro is identical to \helpref{wxCOMPILE\_TIME\_ASSERT2}{wxcompiletimeassert2} +except that it allows you to specify a unique {\it name} for the struct +internally defined by this macro to avoid getting the compilation errors +described \helpref{above}{wxcompiletimeassert}. -See also: \helpref{wxASSERT}{wxassert} \membersection{wxFAIL}\label{wxfail} @@ -3365,6 +4058,7 @@ Will always generate an assert error if this code is reached (in debug mode). See also: \helpref{wxFAIL\_MSG}{wxfailmsg} + \membersection{wxFAIL\_MSG}\label{wxfailmsg} \func{}{wxFAIL\_MSG}{\param{}{msg}} @@ -3375,7 +4069,10 @@ This macro is useful for marking unreachable" code areas, for example it may be used in the "default:" branch of a switch statement if all possible cases are processed above. -See also: \helpref{wxFAIL}{wxfail} +\wxheading{See also} + +\helpref{wxFAIL}{wxfail} + \membersection{wxCHECK}\label{wxcheck} @@ -3384,6 +4081,7 @@ See also: \helpref{wxFAIL}{wxfail} Checks that the condition is true, returns with the given return value if not (FAILs in debug mode). This check is done even in release mode. + \membersection{wxCHECK\_MSG}\label{wxcheckmsg} \func{}{wxCHECK\_MSG}{\param{}{condition}, \param{}{retValue}, \param{}{msg}} @@ -3394,6 +4092,7 @@ This check is done even in release mode. This macro may be only used in non void functions, see also \helpref{wxCHECK\_RET}{wxcheckret}. + \membersection{wxCHECK\_RET}\label{wxcheckret} \func{}{wxCHECK\_RET}{\param{}{condition}, \param{}{msg}} @@ -3404,6 +4103,7 @@ message in debug mode). This check is done even in release mode. This macro should be used in void functions instead of \helpref{wxCHECK\_MSG}{wxcheckmsg}. + \membersection{wxCHECK2}\label{wxcheck2} \func{}{wxCHECK2}{\param{}{condition}, \param{}{operation}} @@ -3415,6 +4115,7 @@ returning from the function must be done when the {\it condition} is false. This check is done even in release mode. + \membersection{wxCHECK2\_MSG}\label{wxcheck2msg} \func{}{wxCHECK2}{\param{}{condition}, \param{}{operation}, \param{}{msg}} @@ -3423,6 +4124,7 @@ This is the same as \helpref{wxCHECK2}{wxcheck2}, but \helpref{wxFAIL\_MSG}{wxfailmsg} with the specified {\it msg} is called instead of wxFAIL() if the {\it condition} is false. + \membersection{::wxTrap}\label{wxtrap} \func{void}{wxTrap}{\void} @@ -3437,6 +4139,21 @@ In release mode this function does nothing. + + +\membersection{::wxIsDebuggerRunning}\label{wxisdebuggerrunning} + +\func{bool}{wxIsDebuggerRunning}{\void} + +Returns {\tt true} if the program is running under debugger, {\tt false} +otherwise. + +Please note that this function is currently only implemented for Mac builds +using CodeWarrior and always returns {\tt false} elsewhere. + + + + \section{Environment access functions}\label{environfunctions} The functions in this section allow to access (get) or change value of @@ -3449,6 +4166,7 @@ Win32 and POSIX-like systems (Unix). + \membersection{wxGetenv}\label{wxgetenvmacro} \func{wxChar *}{wxGetEnv}{\param{const wxString\&}{ var}} @@ -3460,6 +4178,7 @@ Note that under Win32 it may not return correct value for the variables set with \helpref{wxSetEnv}{wxsetenv}, use \helpref{wxGetEnv}{wxgetenv} function instead. + \membersection{wxGetEnv}\label{wxgetenv} \func{bool}{wxGetEnv}{\param{const wxString\&}{ var}, \param{wxString *}{value}} @@ -3468,7 +4187,8 @@ Returns the current value of the environment variable {\it var} in {\it value}. {\it value} may be {\tt NULL} if you just want to know if the variable exists and are not interested in its value. -Returns {\tt TRUE} if the variable exists, {\tt FALSE} otherwise. +Returns {\tt true} if the variable exists, {\tt false} otherwise. + \membersection{wxSetEnv}\label{wxsetenv} @@ -3477,7 +4197,8 @@ Returns {\tt TRUE} if the variable exists, {\tt FALSE} otherwise. Sets the value of the environment variable {\it var} (adding it if necessary) to {\it value}. -Returns {\tt TRUE} on success. +Returns {\tt true} on success. + \membersection{wxUnsetEnv}\label{wxunsetenv} @@ -3487,5 +4208,5 @@ Removes the variable {\it var} from the environment. \helpref{wxGetEnv}{wxgetenv} will return {\tt NULL} after the call to this function. -Returns {\tt TRUE} on success. +Returns {\tt true} on success.