X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/3a5bcc4db0851bf8cd3063917511b0b17c7f9679..8e1bf7046ee361c3078cdf8ec1f0456e57a6ede5:/docs/latex/wx/function.tex diff --git a/docs/latex/wx/function.tex b/docs/latex/wx/function.tex index 545b103690..7b87b4fdac 100644 --- a/docs/latex/wx/function.tex +++ b/docs/latex/wx/function.tex @@ -2,11 +2,11 @@ \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} +\section{Alphabetical functions and macros list}\label{functionsalphabetically} \helpref{CLASSINFO}{classinfo}\\ \helpref{copystring}{copystring}\\ @@ -21,7 +21,6 @@ the corresponding topic. \helpref{IMPLEMENT\_CLASS}{implementclass}\\ \helpref{IMPLEMENT\_DYNAMIC\_CLASS2}{implementdynamicclass2}\\ \helpref{IMPLEMENT\_DYNAMIC\_CLASS}{implementdynamicclass}\\ -\helpref{ngettext}{ngettext}\\ \helpref{wxCONCAT}{wxconcat}\\ \helpref{WXDEBUG\_NEW}{debugnew}\\ \helpref{WXTRACELEVEL}{tracelevel}\\ @@ -32,6 +31,7 @@ the corresponding topic. \helpref{wxBITMAP}{wxbitmapmacro}\\ \helpref{wxBeginBusyCursor}{wxbeginbusycursor}\\ \helpref{wxBell}{wxbell}\\ +\helpref{wxCHANGE\_UMASK}{wxchangeumask}\\ \helpref{wxCHECK}{wxcheck}\\ \helpref{wxCHECK2\_MSG}{wxcheck2msg}\\ \helpref{wxCHECK2}{wxcheck2}\\ @@ -39,6 +39,7 @@ the corresponding topic. \helpref{wxCHECK\_MSG}{wxcheckmsg}\\ \helpref{wxCHECK\_RET}{wxcheckret}\\ \helpref{wxCHECK\_VERSION}{wxcheckversion}\\ +\helpref{wxCHECK\_VERSION\_FULL}{wxcheckversionfull}\\ \helpref{wxCHECK\_W32API\_VERSION}{wxcheckw32apiversion}\\ \helpref{wxClientDisplayRect}{wxclientdisplayrect}\\ \helpref{wxClipboardOpen}{functionwxclipboardopen}\\ @@ -101,6 +102,8 @@ the corresponding topic. \helpref{wxGetCwd}{wxgetcwd}\\ \helpref{wxGetDiskSpace}{wxgetdiskspace}\\ \helpref{wxGetDisplayName}{wxgetdisplayname}\\ +\helpref{wxGetDisplaySize}{wxdisplaysize}\\ +\helpref{wxGetDisplaySizeMM}{wxdisplaysizemm}\\ \helpref{wxGetElapsedTime}{wxgetelapsedtime}\\ \helpref{wxGetEmailAddress}{wxgetemailaddress}\\ \helpref{wxGetEnv}{wxgetenv}\\ @@ -109,6 +112,7 @@ the corresponding topic. \helpref{wxGetFullHostName}{wxgetfullhostname}\\ \helpref{wxGetHomeDir}{wxgethomedir}\\ \helpref{wxGetHostName}{wxgethostname}\\ +\helpref{wxGetKeyState}{wxgetkeystate}\\ \helpref{wxGetLocalTimeMillis}{wxgetlocaltimemillis}\\ \helpref{wxGetLocalTime}{wxgetlocaltime}\\ \helpref{wxGetMousePosition}{wxgetmouseposition}\\ @@ -174,6 +178,8 @@ the corresponding topic. \helpref{wxMakeMetafilePlaceable}{wxmakemetafileplaceable}\\ \helpref{wxMatchWild}{wxmatchwild}\\ \helpref{wxMessageBox}{wxmessagebox}\\ +\helpref{wxMilliSleep}{wxmillisleep}\\ +\helpref{wxMicroSleep}{wxmicrosleep}\\ \helpref{wxMkdir}{wxmkdir}\\ \helpref{wxMutexGuiEnter}{wxmutexguienter}\\ \helpref{wxMutexGuiLeave}{wxmutexguileave}\\ @@ -181,6 +187,7 @@ the corresponding topic. \helpref{wxNow}{wxnow}\\ \helpref{wxOnAssert}{wxonassert}\\ \helpref{wxOpenClipboard}{wxopenclipboard}\\ +\helpref{wxParseCommonDialogsFilter}{wxparsecommondialogsfilter}\\ \helpref{wxPathOnly}{wxpathonly}\\ \helpref{wxPostDelete}{wxpostdelete}\\ \helpref{wxPostEvent}{wxpostevent}\\ @@ -231,10 +238,14 @@ the corresponding topic. \helpref{wxUnix2DosFilename}{wxunix2dosfilename}\\ \helpref{wxUnsetEnv}{wxunsetenv}\\ \helpref{wxUsleep}{wxusleep}\\ +\helpref{wxVaCopy}{wxvacopy}\\ \helpref{wxVsnprintf}{wxvsnprintf}\\ \helpref{wxWakeUpIdle}{wxwakeupidle}\\ \helpref{wxWriteResource}{wxwriteresource}\\ \helpref{wxYield}{wxyield}\\ +\helpref{wx\_const\_cast}{wxconstcastraw}\\ +\helpref{wx\_reinterpret\_cast}{wxreinterpretcastraw}\\ +\helpref{wx\_static\_cast}{wxstaticcastraw}\\ \helpref{\_}{underscore}\\ \helpref{\_T}{underscoret} @@ -242,35 +253,49 @@ the corresponding topic. \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} @@ -286,13 +311,12 @@ the following can be done: \end{verbatim} -\membersection{wxCHECK\_GCC\_VERSION}\label{wxcheckgccversion} +\membersection{wxCHECK\_VERSION\_FULL}\label{wxcheckversionfull} -\func{bool}{wxCHECK\_GCC\_VERSION}{\param{}{major, minor, release}} +\func{bool}{wxCHECK\_VERSION\_FULL}{\param{}{major, minor, release, subrel}} -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 $0$. +Same as \helpref{wxCHECK\_VERSION}{wxcheckversion} but also checks that +\texttt{wxSUBRELEASE\_NUMBER} is at least \arg{subrel}. \membersection{wxCHECK\_W32API\_VERSION}\label{wxcheckw32apiversion} @@ -313,31 +337,31 @@ 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}} -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() @@ -360,7 +384,7 @@ int CTheApp::ExitInstance() \func{wxAppDerivedClass\&}{wxGetApp}{\void} -This function doesn't exist in wxWindows but it is created by using +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}. @@ -406,7 +430,7 @@ see \helpref{wxImage}{wximage}. 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, in this case the library cannot be used and @@ -497,14 +521,14 @@ processes. \perlnote{In wxPerl this function is called \texttt{Wx::ExecuteArgs}} -\func{long}{wxExecute}{\param{const wxString\& }{command}, \param{wxArrayString\& }{output}} +\func{long}{wxExecute}{\param{const wxString\& }{command}, \param{wxArrayString\& }{output}, \param{int }{flags = 0}} \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}} +\func{long}{wxExecute}{\param{const wxString\& }{command}, \param{wxArrayString\& }{output}, \param{wxArrayString\& }{errors}, \param{int }{flags = 0}} \perlnote{In wxPerl this function is called \texttt{Wx::ExecuteStdoutStderr} and it only takes the {\tt command} argument, @@ -529,9 +553,12 @@ 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 $-1$ 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}. +terminate, wxExecute will call \helpref{wxYield}{wxyield}. Because of this, by +default this function disables all application windows to avoid unexpected +reentrancies which could result from the users interaction with the program +while the child process is running. If you are sure that it is safe to not +disable the program windows, you may pass \texttt{wxEXEC\_NODISABLE} flag to +prevent this automatic disabling from happening. 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 @@ -553,14 +580,15 @@ 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). +needed). Calling \helpref{wxKill}{wxkill} passing wxKILL\_CHILDREN will +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. +a process (always synchronously, the contents of \arg{flags} is or'd with +\textt{wxEXEC\_SYNC}) and capture its output in the array \arg{output}. The +fourth version adds the possibility to additionally capture the messages from +standard error output in the \arg{errors} array. {\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 @@ -605,7 +633,7 @@ application. See \helpref{wxCloseEvent}{wxcloseevent} and \helpref{wxApp}{wxapp} \membersection{::wxKill}\label{wxkill} -\func{int}{wxKill}{\param{long}{ pid}, \param{int}{ sig = wxSIGTERM}, \param{wxKillError }{*rc = NULL}} +\func{int}{wxKill}{\param{long}{ pid}, \param{int}{ sig = wxSIGTERM}, \param{wxKillError }{*rc = NULL}, \param{int }{flags = 0}} Equivalent to the Unix kill function: send the given signal {\it sig} to the process with PID {\it pid}. The valid signal values are @@ -650,6 +678,12 @@ enum wxKillError }; \end{verbatim} +The {\it flags} parameter can be wxKILL\_NOCHILDREN (the default), +or wxKILL\_CHILDREN, in which case the child processes of this +process will be killed too. Note that under Unix, for wxKILL\_CHILDREN +to work you should have created the process by passing wxEXEC\_MAKE_GROUP\_LEADER +to wxExecute. + \wxheading{See also} \helpref{wxProcess::Kill}{wxprocesskill},\rtfsp @@ -867,7 +901,7 @@ threads. \wxheading{Include files} - + \wxheading{See also} @@ -928,6 +962,10 @@ that matches the path {\it spec}, or the empty string. Use \helpref{wxFindNextFi get the next matching file. Neither will report the current directory "." or the parent directory "..". +\wxheading{Warning} + +As of wx 2.5.2, these functions are not thread-safe! (use static variables) + {\it spec} may contain wildcards. {\it flags} may be wxDIR for restricting the query to directories, wxFILE for files or zero for either. @@ -972,7 +1010,7 @@ directory doesn't exist). 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} @@ -1005,6 +1043,18 @@ Converts a Unix to a DOS filename by replacing forward slashes with backslashes. +\membersection{wxCHANGE\_UMASK}\label{wxchangeumask} + +\func{}{wxCHANGE\_UMASK}{\param{int }{mask}} + +Under Unix this macro changes the current process umask to the given value, +unless it is equal to $-1$ in which case nothing is done, and restores it to +the original value on scope exit. It works by declaring a variable which sets +umask to \arg{mask} in its constructor and restores it in its destructor. + +Under other platforms this macro expands to nothing. + + \membersection{::wxConcatFiles}\label{wxconcatfiles} \func{bool}{wxConcatFiles}{\param{const wxString\& }{file1}, \param{const wxString\& }{file2}, @@ -1076,7 +1126,7 @@ Returns true if the pattern contains wildcards. See \helpref{wxMatchWild}{wxmatc \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 +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}. @@ -1085,24 +1135,38 @@ with wildcard characters. See \helpref{wxIsWild}{wxiswild}. \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} @@ -1249,7 +1313,7 @@ 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 @@ -1275,7 +1339,7 @@ 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 @@ -1360,7 +1424,7 @@ 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. @@ -1378,7 +1442,7 @@ if successful, {\tt false} otherwise. -\section{String functions} +\section{String functions}\label{stringfunctions} \membersection{::copystring}\label{copystring} @@ -1391,22 +1455,6 @@ deleted with the {\it delete} operator. This function is deprecated, use \helpref{wxString}{wxstring} class instead. -\membersection{ngettext}\label{ngettext} - -\func{const wxChar *}{ngettext}{\param{const char *}{str}, \param{const char *}{strPlural}, \param{size\_t }{n}} - -This macro expands into a call to plural form version of -\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, either singular or plural -form depending on the value of \arg{n}. - -\wxheading{See also} - -\helpref{\_}{underscore} - - \membersection{::wxGetTranslation}\label{wxgettranslation} \func{const char *}{wxGetTranslation}{\param{const char * }{str}} @@ -1430,10 +1478,11 @@ 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}. The \helpref{ngettext}{ngettext} macro is defined -to do the same thing. +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}} @@ -1542,21 +1591,21 @@ build. In fact, its definition is: \func{const wxChar *}{wxTRANSLATE}{\param{const char *}{s}} This macro doesn't do anything in the program code -- it simply expands to the -value of its argument (expand in Unicode build where it is equivalent to +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 +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 the static arrays +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 +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 @@ -1582,8 +1631,6 @@ 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} \func{int}{wxVsnprintf}{\param{wxChar *}{buf}, \param{size\_t }{len}, \param{const wxChar *}{format}, \param{va\_list }{argPtr}} @@ -1608,11 +1655,6 @@ the string for the current locale during execution. Don't confuse this macro with \helpref{\_T()}{underscoret}! -\wxheading{See also} - -\helpref{ngettext}{ngettext} - - \membersection{\_T}\label{underscoret} @@ -1621,7 +1663,7 @@ Don't confuse this macro with \helpref{\_T()}{underscoret}! \func{const wxChar *}{\_T}{\param{const wxChar }{ch}} This macro is exactly the same as \helpref{wxT}{wxt} and is defined in -wxWindows simply because it may be more intuitive for Windows programmers as +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()}). @@ -1717,7 +1759,7 @@ if ( !dir.empty() ) \func{wxString}{wxFileSelector}{\param{const wxString\& }{message}, \param{const wxString\& }{default\_path = ""},\\ \param{const wxString\& }{default\_filename = ""}, \param{const wxString\& }{default\_extension = ""},\\ - \param{const wxString\& }{wildcard = ``*.*''}, \param{int }{flags = 0}, \param{wxWindow *}{parent = ""},\\ + \param{const wxString\& }{wildcard = "*.*"}, \param{int }{flags = 0}, \param{wxWindow *}{parent = NULL},\\ \param{int}{ x = -1}, \param{int}{ y = -1}} Pops up a file selector box. In Windows, this is the common file selector @@ -1727,7 +1769,7 @@ 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 @@ -1881,13 +1923,14 @@ Dialog is centered on its {\it parent} unless an explicit position is given in \wxheading{Include files} - + \membersection{::wxGetPasswordFromUser}\label{wxgetpasswordfromuser} -\func{wxString}{wxGetTextFromUser}{\param{const wxString\& }{message}, \param{const wxString\& }{caption = ``Input text"},\\ - \param{const wxString\& }{default\_value = ``"}, \param{wxWindow *}{parent = NULL}} +\func{wxString}{wxGetPasswordFromUser}{\param{const wxString\& }{message}, \param{const wxString\& }{caption = ``Input text"},\\ + \param{const wxString\& }{default\_value = ``"}, \param{wxWindow *}{parent = NULL},\\ + \param{int}{ x = wxDefaultCoord}, \param{int}{ y = wxDefaultCoord}, \param{bool}{ centre = true}} Similar to \helpref{wxGetTextFromUser}{wxgettextfromuser} but the text entered in the dialog is not shown on screen but replaced with stars. This is intended @@ -1902,7 +1945,7 @@ to be used for entering passwords as the function name implies. \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 = wxDefaultCoord}, \param{int}{ y = wxDefaultCoord}, \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, @@ -2102,7 +2145,7 @@ message will be split into separate lines, to cater for large messages. \param{bool }{showAtStartup = true}} This function shows a "startup tip" to the user. The return value is the -state of the ``Show tips at startup'' checkbox. +state of the `Show tips at startup' checkbox. \docparam{parent}{The parent window for the modal dialog} @@ -2124,7 +2167,7 @@ checkbox which is shown in the tips dialog.} -\section{Math functions} +\section{Math functions}\label{mathfunctions} \wxheading{Include files} @@ -2274,7 +2317,7 @@ 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. @@ -2553,7 +2596,7 @@ This macro returns the concatenation of two tokens \arg{x} and \arg{y}. \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 +{\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 @@ -2582,6 +2625,19 @@ 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}} @@ -2653,7 +2709,7 @@ the given {\bf id}. \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}. @@ -2670,7 +2726,7 @@ 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},\rtfsp \helpref{wxDDECleanUp}{wxddecleanup}. @@ -2946,6 +3002,19 @@ allows to define unsigned 64 bit compile time constants: \helpref{wxLL}{wxll}, \helpref{wxLongLong}{wxlonglong} +\membersection{wxVaCopy}\label{wxvacopy} + +\func{void}{wxVaCopy}{\param{va\_list }{argptrDst}, \param{va\_list}{argptrSrc}} + +This macro is the same as the standard C99 \texttt{va\_copy} for the compilers +which support it or its replacement for those that don't. It must be used to +preserve the value of a \texttt{va\_list} object if you need to use it after +passing it to another function because it can be modified by the latter. + +As with \texttt{va\_start}, each call to \texttt{wxVaCopy} must have a matching +\texttt{va\_end}. + + \membersection{::wxWriteResource}\label{wxwriteresource} \func{bool}{wxWriteResource}{\param{const wxString\& }{section}, \param{const wxString\& }{entry}, @@ -3044,7 +3113,7 @@ data in big-endian format. \section{RTTI functions}\label{rttimacros} -wxWindows uses its own RTTI ("run-time type identification") system which +wxWidgets uses its own RTTI ("run-time type identification") system which predates the current standard C++ RTTI and so is kept for backwards compatibility reasons but also because it allows some things which the standard RTTI doesn't directly support (such as creating a class from its @@ -3052,7 +3121,7 @@ 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} @@ -3196,7 +3265,7 @@ a class that has run-time type information and two base classes. The same as IMP \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: @@ -3289,6 +3358,7 @@ 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} @@ -3376,17 +3446,64 @@ 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} +\membersection{wx\_const\_cast}\label{wxconstcastraw} + +\func{T}{wx\_const\_cast}{T, x} + +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. + +\wxheading{See also} + +\helpref{wx\_reinterpret\_cast}{wxreinterpretcastraw},\\ +\helpref{wx\_static\_cast}{wxstaticcastraw} + + +\membersection{wx\_reinterpret\_cast}\label{wxreinterpretcastraw} + +\func{T}{wx\_reinterpret\_cast}{T, x} + +Same as \texttt{reinterpret\_cast(x)} if the compiler supports reinterpret cast or +\texttt{(T)x} for old compilers. + +\wxheading{See also} + +\helpref{wx\_const\_cast}{wxconstcastraw},\\ +\helpref{wx\_static\_cast}{wxstaticcastraw} + + +\membersection{wx\_static\_cast}\label{wxstaticcastraw} + +\func{T}{wx\_static\_cast}{T, x} + +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. + +\wxheading{See also} + +\helpref{wx\_const\_cast}{wxconstcastraw},\\ +\helpref{wx\_reinterpret\_cast}{wxreinterpretcastraw} + + \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} @@ -3420,14 +3537,14 @@ instead. \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"}} {\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} @@ -3436,14 +3553,14 @@ wxWindows errors. See also \helpref{wxFatalError}{wxfatalerror}. \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"}} {\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} @@ -3529,7 +3646,7 @@ If the target frame doesn't have a statusbar, the message will be lost. \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 @@ -3582,7 +3699,7 @@ the mask has been previously enabled by the call to \helpref{AddTraceMask}{wxlogaddtracemask} or by setting \helpref{{\tt WXTRACE} environment variable}{envvars}. The predefined string trace masks -used by wxWindows are: +used by wxWidgets are: \begin{itemize}\itemsep=0pt \item wxTRACE\_MemAlloc: trace memory allocation (new/delete) @@ -3592,7 +3709,14 @@ used by wxWindows are: \item wxTRACE\_OleCalls: trace OLE method calls (Win32 only) \end{itemize} -The third version of the function only logs the message if all the bit +{\bf Caveats:} since both the mask and the format string are strings, +this might lead to function signature confusion in some cases: +if you intend to call the format string only version of wxLogTrace, +then add a \%s format string parameter and then supply a second string parameter for that \%s, the string mask version of wxLogTrace will erroneously get called instead, since you are supplying two string parameters to the function. +In this case you'll unfortunately have to avoid having two leading +string parameters, e.g. by adding a bogus integer (with its \%d format string). + +The third version of the function only logs the message if all the bits corresponding to the {\it mask} are set in the wxLog trace mask which can be set by \helpref{SetTraceMask}{wxlogsettracemask}. This version is less flexible than the previous one because it doesn't allow defining the user @@ -3802,6 +3926,33 @@ 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} @@ -3841,20 +3992,17 @@ See also \helpref{wxTimer}{wxtimer}. \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. - -\wxheading{Include files} - - +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. \section{Debugging macros and functions}\label{debugmacros} Useful macros and functions for error checking and defensive programming. -wxWindows defines three families of the assert-like macros: +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 @@ -3949,8 +4097,8 @@ 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'' +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}