+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%% Name: function.tex
+%% Purpose: Functions and macros
+%% Author: wxWidgets Team
+%% Modified by:
+%% Created:
+%% RCS-ID: $Id$
+%% Copyright: (c) wxWidgets Team
+%% License: wxWindows license
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
\chapter{Functions}\label{functions}
\setheader{{\it CHAPTER \thechapter}}{}{}{}{}{{\it CHAPTER \thechapter}}%
\setfooter{\thepage}{}{}{}{}{\thepage}
\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{wxASSERT}{wxassert}\\
\helpref{wxASSERT\_MIN\_BITSIZE}{wxassertminbitsize}\\
\helpref{wxASSERT\_MSG}{wxassertmsg}\\
-\helpref{wxASSERT}{wxassert}\\
-\helpref{wxBITMAP}{wxbitmapmacro}\\
\helpref{wxBeginBusyCursor}{wxbeginbusycursor}\\
\helpref{wxBell}{wxbell}\\
+\helpref{wxBITMAP}{wxbitmapmacro}\\
\helpref{wxCHANGE\_UMASK}{wxchangeumask}\\
\helpref{wxCHECK}{wxcheck}\\
\helpref{wxCHECK2\_MSG}{wxcheck2msg}\\
\helpref{wxColourDisplay}{wxcolourdisplay}\\
\helpref{wxCOMPILE\_TIME\_ASSERT}{wxcompiletimeassert}\\
\helpref{wxCOMPILE\_TIME\_ASSERT2}{wxcompiletimeassert2}\\
+\helpref{wxCONCAT}{wxconcat}\\
\helpref{wxConcatFiles}{wxconcatfiles}\\
\helpref{wxConstCast}{wxconstcast}\\
\helpref{wxCopyFile}{wxcopyfile}\\
\helpref{wxDDEInitialize}{wxddeinitialize}\\
\helpref{wxDROP\_ICON}{wxdropicon}\\
\helpref{wxDebugMsg}{wxdebugmsg}\\
+\helpref{WXDEBUG\_NEW}{debugnew}\\
\helpref{wxDirExists}{functionwxdirexists}\\
\helpref{wxDirSelector}{wxdirselector}\\
\helpref{wxDisplayDepth}{wxdisplaydepth}\\
\helpref{wxFinite}{wxfinite}\\
\helpref{wxGetActiveWindow}{wxgetactivewindow}\\
\helpref{wxGetApp}{wxgetapp}\\
+\helpref{wxGetBatteryState}{wxgetbatterystate}\\
\helpref{wxGetClipboardData}{wxgetclipboarddata}\\
\helpref{wxGetClipboardFormatName}{wxgetclipboardformatname}\\
\helpref{wxGetColourFromUser}{wxgetcolourfromuser}\\
\helpref{wxGetElapsedTime}{wxgetelapsedtime}\\
\helpref{wxGetEmailAddress}{wxgetemailaddress}\\
\helpref{wxGetEnv}{wxgetenv}\\
+\helpref{wxGetFileKind}{wxgetfilekind}\\
\helpref{wxGetFontFromUser}{wxgetfontfromuser}\\
\helpref{wxGetFreeMemory}{wxgetfreememory}\\
\helpref{wxGetFullHostName}{wxgetfullhostname}\\
\helpref{wxGetLocalTimeMillis}{wxgetlocaltimemillis}\\
\helpref{wxGetLocalTime}{wxgetlocaltime}\\
\helpref{wxGetMousePosition}{wxgetmouseposition}\\
+\helpref{wxGetMouseState}{wxgetmousestate}\\
\helpref{wxGetMultipleChoices}{wxgetmultiplechoices}\\
\helpref{wxGetMultipleChoice}{wxgetmultiplechoice}\\
\helpref{wxGetNumberFromUser}{wxgetnumberfromuser}\\
\helpref{wxGetOsDescription}{wxgetosdescription}\\
\helpref{wxGetOsVersion}{wxgetosversion}\\
\helpref{wxGetPasswordFromUser}{wxgetpasswordfromuser}\\
+\helpref{wxGetPowerType}{wxgetpowertype}\\
\helpref{wxGetPrinterCommand}{wxgetprintercommand}\\
\helpref{wxGetPrinterFile}{wxgetprinterfile}\\
\helpref{wxGetPrinterMode}{wxgetprintermode}\\
\helpref{wxIsEmpty}{wxisempty}\\
\helpref{wxIsMainThread}{wxismainthread}\\
\helpref{wxIsNaN}{wxisnan}\\
+\helpref{wxIsPlatformLittleEndian}{wxisplatformlittleendian}\\
+\helpref{wxIsPlatform64Bit}{wxisplatform64bit}\\
\helpref{wxIsWild}{wxiswild}\\
\helpref{wxKill}{wxkill}\\
+\helpref{wxLaunchDefaultBrowser}{wxlaunchdefaultbrowser}\\
\helpref{wxLEAVE\_CRIT\_SECT}{wxleavecritsect}\\
\helpref{wxLoadUserResource}{wxloaduserresource}\\
\helpref{wxLogDebug}{wxlogdebug}\\
\helpref{wxNewId}{wxnewid}\\
\helpref{wxNow}{wxnow}\\
\helpref{wxOnAssert}{wxonassert}\\
+\helpref{wxON\_BLOCK\_EXIT}{wxonblockexit}\\
+\helpref{wxON\_BLOCK\_EXIT\_OBJ}{wxonblockexitobj}\\
\helpref{wxOpenClipboard}{wxopenclipboard}\\
\helpref{wxParseCommonDialogsFilter}{wxparsecommondialogsfilter}\\
\helpref{wxPathOnly}{wxpathonly}\\
+\helpref{wxPLURAL}{wxplural}\\
\helpref{wxPostDelete}{wxpostdelete}\\
\helpref{wxPostEvent}{wxpostevent}\\
\helpref{wxRegisterClipboardFormat}{wxregisterclipboardformat}\\
\helpref{wxStricmp}{wxstricmp}\\
\helpref{wxStringEq}{wxstringeq}\\
\helpref{wxStringMatch}{wxstringmatch}\\
+\helpref{wxStringTokenize}{wxstringtokenize}\\
\helpref{wxStripMenuCodes}{wxstripmenucodes}\\
\helpref{wxStrlen}{wxstrlen}\\
+\helpref{wxSUPPRESS\_GCC\_PRIVATE\_DTOR\_WARNING}{wxsuppressgccprivatedtorwarning}\\
\helpref{wxSysErrorCode}{wxsyserrorcode}\\
\helpref{wxSysErrorMsg}{wxsyserrormsg}\\
\helpref{wxT}{wxt}\\
-\helpref{wxTraceLevel}{wxtracelevel}\\
\helpref{wxTrace}{wxtrace}\\
+\helpref{WXTRACE}{trace}\\
+\helpref{wxTraceLevel}{wxtracelevel}\\
+\helpref{WXTRACELEVEL}{tracelevel}\\
\helpref{wxTransferFileToStream}{wxtransferfiletostream}\\
\helpref{wxTransferStreamToFile}{wxtransferstreamtofile}\\
\helpref{wxTrap}{wxtrap}\\
\helpref{wx\_const\_cast}{wxconstcastraw}\\
\helpref{wx\_reinterpret\_cast}{wxreinterpretcastraw}\\
\helpref{wx\_static\_cast}{wxstaticcastraw}\\
+\helpref{wx\_truncate\_cast}{wxtruncatecast}\\
\helpref{\_}{underscore}\\
\helpref{\_T}{underscoret}
+\helpref{\_\_WXFUNCTION\_\_}{wxfunction}
\helpref{wxApp}{wxapp} object at all. In this case you must call it from your
{\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 \false the initialization could not be performed,
in this case the library cannot be used and
\helpref{wxUninitialize}{wxuninitialize} shouldn't be called neither.
\wxheading{Include files}
-<wx/event.h>
+<wx/app.h>
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} passing wxKILL\_CHILDREN will
-will kill this process as well as all of its children (except those which have
+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
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 work you should have created the process by passing wxEXEC\_MAKE\_GROUP\_LEADER
to wxExecute.
\wxheading{See also}
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)
+rights (superuser under Unix, {\tt SE\_SHUTDOWN} privilege under Windows NT)
and that this function is only implemented under Unix and Win32.
\wxheading{Parameters}
\wxheading{Returns}
-{\tt true} on success, {\tt false} if an error occured.
+\true on success, \false if an error occurred.
\wxheading{Include files}
\func{bool}{wxIsMainThread}{\void}
-Returns {\tt true} if this thread is the main one. Always returns {\tt true} if
+Returns \true if this thread is the main one. Always returns \true if
{\tt wxUSE\_THREADS} is $0$.
\helpref{wxFileName}{wxfilename}
-\membersection{::wxDirExists}\label{functionwxdirexists}
-
-\func{bool}{wxDirExists}{\param{const wxString\& }{dirname}}
-
-Returns true if the directory exists.
-
-
\membersection{::wxDos2UnixFilename}\label{wxdos2unixfilename}
\func{void}{wxDos2UnixFilename}{\param{wxChar *}{s}}
Returns time of last modification of given file.
+The return value is $0$ if an error occured (e.g. file not found).
+
\membersection{::wxFileNameFromPath}\label{wxfilenamefrompath}
\wxheading{Warning}
-As of wx 2.5.2, these functions are not thread-safe! (use static variables)
+As of wx 2.5.2, these functions are not thread-safe! (they use static variables). You probably want to use \helpref{wxDir::GetFirst}{wxdirgetfirst} or \helpref{wxDirTraverser}{wxdirtraverser} instead.
{\it spec} may contain wildcards.
\begin{verbatim}
wxString f = wxFindFirstFile("/home/project/*.*");
- while ( !f.IsEmpty() )
+ while ( !f.empty() )
{
...
f = wxFindNextFile();
\wxheading{Returns}
-{\tt true} on success, {\tt false} if an error occured (for example, the
+\true on success, \false if an error occurred (for example, the
directory doesn't exist).
\wxheading{Portability}
This function first appeared in wxWidgets 2.3.2.
+\membersection{::wxGetFileKind}\label{wxgetfilekind}
+
+\func{wxFileKind}{wxGetFileKind}{\param{int }{fd}}
+
+\func{wxFileKind}{wxGetFileKind}{\param{FILE *}{fp}}
+
+Returns the type of an open file. Possible return values are:
+
+\begin{verbatim}
+enum wxFileKind
+{
+ wxFILE_KIND_UNKNOWN,
+ wxFILE_KIND_DISK, // a file supporting seeking to arbitrary offsets
+ wxFILE_KIND_TERMINAL, // a tty
+ wxFILE_KIND_PIPE // a pipe
+};
+
+\end{verbatim}
+
+\wxheading{Include files}
+
+<wx/filefn.h>
+
+
\membersection{::wxGetOSDirectory}\label{wxgetosdirectory}
\func{wxString}{wxGetOSDirectory}{\void}
or drive name at the beginning.
+\membersection{::wxDirExists}\label{functionwxdirexists}
+
+\func{bool}{wxDirExists}{\param{const wxString\& }{dirname}}
+
+Returns true if the path exists.
+
+
\membersection{::wxPathOnly}\label{wxpathonly}
\func{wxString}{wxPathOnly}{\param{const wxString\& }{path}}
\membersection{::wxUnix2DosFilename}\label{wxunix2dosfilename}
-\func{void}{wxUnix2DosFilename}{\param{const wxString\& }{s}}
+\func{void}{wxUnix2DosFilename}{\param{wxChar *}{s}}
+
+This function is deprecated, use \helpref{wxFileName}{wxfilename} instead.
Converts a Unix to a DOS filename by replacing forward
slashes with backslashes.
\func{wxString}{wxGetWorkingDirectory}{\param{char *}{buf=NULL}, \param{int }{sz=1000}}
-{\bf NB:} This function is obsolete: use \helpref{wxGetCwd}{wxgetcwd} instead.
+{\bf NB:} This function is deprecated: 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 {\emph must} delete
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.
+supported (Unix) and doesn't have any effect on the other ones.
\membersection{::wxParseCommonDialogsFilter}\label{wxparsecommondialogsfilter}
\membersection{::wxRenameFile}\label{wxrenamefile}
-\func{bool}{wxRenameFile}{\param{const wxString\& }{file1}, \param{const wxString\& }{file2}}
+\func{bool}{wxRenameFile}{\param{const wxString\& }{file1}, \param{const wxString\& }{file2}, \param{bool }{overwrite = true}}
Renames \arg{file1} to \arg{file2}, returning true if successful.
+If \arg{overwrite} parameter is true (default), the destination file is
+overwritten if it exists, but if \arg{overwrite} is false, the functions fails
+in this case.
+
\membersection{::wxRmdir}\label{wxrmdir}
current computer and/or user characteristics.
+\membersection{::wxGetEmailAddress}\label{wxgetemailaddress}
+
+\func{wxString}{wxGetEmailAddress}{\void}
+
+\func{bool}{wxGetEmailAddress}{\param{char * }{buf}, \param{int }{sz}}
+
+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.
+
+\wxheading{Include files}
+
+<wx/utils.h>
+
+
\membersection{::wxGetFreeMemory}\label{wxgetfreememory}
\func{wxMemorySize}{wxGetFreeMemory}{\void}
Returns the amount of free memory in bytes under environments which
-support it, and -1 if not supported. Currently, it is supported only
-under Windows, Linux and Solaris.
+support it, and -1 if not supported or failed to perform measurement.
\wxheading{Include files}
<wx/utils.h>
-\membersection{::wxGetEmailAddress}\label{wxgetemailaddress}
-
-\func{bool}{wxGetEmailAddress}{\param{const wxString\& }{buf}, \param{int }{sz}}
-
-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.
-
-\wxheading{Include files}
-
-<wx/utils.h>
-
-
\membersection{::wxGetHomeDir}\label{wxgethomedir}
\func{wxString}{wxGetHomeDir}{\void}
\wxheading{See also}
-\helpref{wxGetUserHome}{wxgetuserhome}
+\helpref{wxGetUserHome}{wxgetuserhome}\\
+\helpref{wxStandardPaths}{wxstandardpaths}
\wxheading{Include files}
<wx/utils.h>
-\membersection{::wxGetUserId}\label{wxgetuserid}
+\membersection{::wxGetOsDescription}\label{wxgetosdescription}
-\func{wxString}{wxGetUserId}{\void}
+\func{wxString}{wxGetOsDescription}{\void}
-\func{bool}{wxGetUserId}{\param{char * }{buf}, \param{int }{sz}}
+Returns the string containing the description of the current platform in a
+user-readable form. For example, this function may return strings like
+{\tt Windows NT Version 4.0} or {\tt Linux 2.2.2 i386}.
-This function returns the "user id" also known as "login name" under Unix i.e.
-something like "jsmith". It uniquely identifies the current user (on this system).
+\wxheading{See also}
-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 wxWidgets} section of the WIN.INI file is tried.
+\helpref{::wxGetOsVersion}{wxgetosversion}
+
+\wxheading{Include files}
+
+<wx/utils.h>
-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.
+
+\membersection{::wxGetOsVersion}\label{wxgetosversion}
+
+\func{wxOperatingSystemId}{wxGetOsVersion}{\param{int *}{major = NULL}, \param{int *}{minor = NULL}}
+
+Gets the version and the operating system ID for currently running OS.
+See \helpref{wxPlatformInfo}{wxplatforminfo} for more details about wxOperatingSystemId.
\wxheading{See also}
-\helpref{wxGetUserName}{wxgetusername}
+\helpref{::wxGetOsDescription}{wxgetosdescription},
+\helpref{wxPlatformInfo}{wxplatforminfo}
\wxheading{Include files}
<wx/utils.h>
-\membersection{::wxGetOsDescription}\label{wxgetosdescription}
+\membersection{::wxIsPlatformLittleEndian}\label{wxisplatformlittleendian}
-\func{wxString}{wxGetOsDescription}{\void}
+\func{bool}{wxIsPlatformLittleEndian}{\void}
-Returns the string containing the description of the current platform in a
-user-readable form. For example, this function may return strings like
-{\tt Windows NT Version 4.0} or {\tt Linux 2.2.2 i386}.
+Returns \true if the current platform is little endian (instead of big endian).
+The check is performed at run-time.
\wxheading{See also}
-\helpref{::wxGetOsVersion}{wxgetosversion}
+\helpref{Byte order macros}{byteordermacros}
\wxheading{Include files}
<wx/utils.h>
-\membersection{::wxGetOsVersion}\label{wxgetosversion}
-
-\func{int}{wxGetOsVersion}{\param{int *}{major = NULL}, \param{int *}{minor = NULL}}
+\membersection{::wxIsPlatform64Bit}\label{wxisplatform64bit}
-Gets operating system version information.
+\func{bool}{wxIsPlatform64Bit}{\void}
-\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.
-
-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.}
-\twocolitem{Windows 3.1}{Return value is wxWINDOWS, {\it major} is 3, {\it minor} is 1.}
-\twocolitem{Windows NT/2000}{Return value is wxWINDOWS\_NT, version is returned in {\it major} and {\it minor}}
-\twocolitem{Windows 98}{Return value is wxWIN95, {\it major} is 4, {\it minor} is 1 or greater.}
-\twocolitem{Windows 95}{Return value is wxWIN95, {\it major} is 4, {\it minor} is 0.}
-\twocolitem{Win32s (Windows 3.1)}{Return value is wxWIN32S, {\it major} is 3, {\it minor} is 1.}
-\twocolitem{Watcom C++ 386 supervisor mode (Windows 3.1)}{Return value is wxWIN386, {\it major} is 3, {\it minor} is 1.}
-\end{twocollist}
-
-\wxheading{See also}
+Returns \true if the operating system the program is running under is 64 bit.
+The check is performed at run-time and may differ from the value available at
+compile-time (at compile-time you can just check if {\tt sizeof(void*)==8})
+since the program could be running in emulation mode or in a mixed 32/64 bit system
+(bi-architecture operating system).
-\helpref{::wxGetOsDescription}{wxgetosdescription}
+Very important: this function is not 100\% reliable on some systems given the fact
+that there isn't always a standard way to do a reliable check on the OS architecture.
\wxheading{Include files}
<wx/utils.h>
+\membersection{::wxGetUserId}\label{wxgetuserid}
+
+\func{wxString}{wxGetUserId}{\void}
+
+\func{bool}{wxGetUserId}{\param{char * }{buf}, \param{int }{sz}}
+
+This function returns the "user id" also known as "login name" under Unix i.e.
+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 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.
+
+\wxheading{See also}
+
+\helpref{wxGetUserName}{wxgetusername}
+
+\wxheading{Include files}
+
+<wx/utils.h>
+
+
\membersection{::wxGetUserName}\label{wxgetusername}
\func{wxString}{wxGetUserName}{\void}
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 \true
+if successful, \false otherwise.
\wxheading{See also}
\membersection{::wxGetTranslation}\label{wxgettranslation}
-\func{const char *}{wxGetTranslation}{\param{const char * }{str}}
+\func{const wxChar *}{wxGetTranslation}{\param{const wxChar* }{str},
+ \param{const wxChar* }{domain = NULL}}
-\func{const char *}{wxGetTranslation}{\param{const char * }{str}, \param{const char * }{strPlural}, \param{size\_t }{n}}
+\func{const wxChar *}{wxGetTranslation}{\param{const wxChar* }{str}, \param{const wxChar* }{strPlural}, \param{size\_t }{n},
+ \param{const wxChar* }{domain = NULL}}
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
+should help to find the strings which were not yet translated. If
+{\it domain} is specified then only that domain/catalog is searched
+for a matching string. 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',
+other language. It takes two extra arguments: as above, \arg{str}
+parameter must contain the singular form of the string to be converted and
+is 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.
+
+See \urlref{GNU gettext manual}{http://www.gnu.org/manual/gettext/html\_chapter/gettext\_10.html\#SEC150}
+for additional information on plural forms handling. For a shorter alternative
+see the \helpref{wxPLURAL()}{wxplural} macro.
Both versions call \helpref{wxLocale::GetString}{wxlocalegetstring}.
+Note that this function is not suitable for literal strings in Unicode
+builds, since the literal strings must be enclosed into
+\helpref{\_T()}{underscoret} or \helpref{wxT}{wxt} macro which makes them
+unrecognised by \texttt{xgettext}, and so they are not extracted to the message
+catalog. Instead, use the \helpref{\_()}{underscore} and
+\helpref{wxPLURAL}{wxplural} macro for all literal strings.
+
+
\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 \true if the pointer is either {\tt NULL} or points to an empty
+string, \false otherwise.
\membersection{::wxStrcmp}\label{wxstrcmp}
case-sensitive comparison.
+\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}
+
+
\membersection{::wxStringMatch}\label{wxstringmatch}
\func{bool}{wxStringMatch}{\param{const wxString\& }{s1}, \param{const wxString\& }{s2},\\
{\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},
+Returns \true if the substring {\it s1} is found within {\it s2},
+ignoring case if {\it exact} is false. If {\it subString} is \false,
no substring matching is done.
-\membersection{::wxStringEq}\label{wxstringeq}
-
-\func{bool}{wxStringEq}{\param{const wxString\& }{s1}, \param{const wxString\& }{s2}}
+\membersection{::wxStringTokenize}\label{wxstringtokenize}
-{\bf NB:} This function is obsolete, use \helpref{wxString}{wxstring} instead.
+\func{wxArrayString}{wxStringTokenize}{\param{const wxString\& }{str},\\
+ \param{const wxString\& }{delims = wxDEFAULT\_DELIMITERS},\\
+ \param{wxStringTokenizerMode }{mode = wxTOKEN\_DEFAULT}}
-A macro defined as:
+This is a convenience function wrapping
+\helpref{wxStringTokenizer}{wxstringtokenizer} which simply returns all tokens
+found in the given \arg{str} in an array.
-\begin{verbatim}
-#define wxStringEq(s1, s2) (s1 && s2 && (strcmp(s1, s2) == 0))
-\end{verbatim}
+Please see
+\helpref{wxStringTokenizer::wxStringTokenizer}{wxstringtokenizerwxstringtokenizer}
+for the description of the other parameters.
\membersection{::wxStrlen}\label{wxstrlen}
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
The same as \helpref{wxSnprintf}{wxsnprintf} but takes a {\tt va\_list }
argument instead of arbitrary number of parameters.
+Note that if \texttt{wxUSE_PRINTF_POS_PARAMS} is set to 1, then this function supports
+positional arguments (see \helpref{wxString::Printf}{wxstringprintf} for more information).
+However other functions of the same family (wxPrintf, wxSprintf, wxFprintf, wxVfprintf,
+wxVfprintf, wxVprintf, wxVsprintf) currently do not to support positional parameters
+even when \texttt{wxUSE_PRINTF_POS_PARAMS} is 1.
+
\wxheading{See also}
\helpref{wxSnprintf}{wxsnprintf}, \helpref{wxString::PrintfV}{wxstringprintfv}
\func{const wxChar *}{\_}{\param{const char *}{s}}
-This macro expands into a call to \helpref{wxGetTranslation}{wxgettranslation}
+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{wxPLURAL}\label{wxplural}
+
+\func{const wxChar *}{wxPLURAL}{\param{const char *}{sing}, \param{const char *}{plur}, \param{size\_t}{n}}
+
+This macro is identical to \helpref{\_()}{underscore} but for the plural variant
+of \helpref{wxGetTranslation}{wxgettranslation}.
+
+
\membersection{\_T}\label{underscoret}
\func{wxChar}{\_T}{\param{char }{ch}}
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, wxFILE\_MUST\_EXIST, wxMULTIPLE or 0.
+wxSAVE, wxOVERWRITE\_PROMPT or wxFILE\_MUST\_EXIST. Note that wxMULTIPLE
+can only be used with \helpref{wxFileDialog}{wxfiledialog} and not here as this
+function only returns a single file name.
Both the Unix and Windows versions implement a wildcard filter. Typing a
filename containing wildcards (*, ?) in the filename text item, and
\membersection{::wxGetColourFromUser}\label{wxgetcolourfromuser}
-\func{wxColour}{wxGetColourFromUser}{\param{wxWindow *}{parent}, \param{const wxColour\& }{colInit}}
+\func{wxColour}{wxGetColourFromUser}{\param{wxWindow *}{parent}, \param{const wxColour\& }{colInit}, \param{const wxString\& }{caption = wxEmptyString}}
Shows the colour selection dialog and returns the colour selected by user or
invalid colour (use \helpref{wxColour::Ok}{wxcolourok} to test whether a colour
\docparam{colInit}{If given, this will be the colour initially selected in the dialog.}
+\docparam{caption}{If given, this will be used for the dialog caption.}
+
\wxheading{Include files}
<wx/colordlg.h>
\membersection{::wxGetFontFromUser}\label{wxgetfontfromuser}
-\func{wxFont}{wxGetFontFromUser}{\param{wxWindow *}{parent}, \param{const wxFont\& }{fontInit}}
+\func{wxFont}{wxGetFontFromUser}{\param{wxWindow *}{parent}, \param{const wxFont\& }{fontInit}, \param{const wxString\& }{caption = wxEmptyString}}
Shows the font selection dialog and returns the font selected by user or
invalid font (use \helpref{wxFont::Ok}{wxfontok} to test whether a font
\docparam{fontInit}{If given, this will be the font initially selected in the dialog.}
+\docparam{caption}{If given, this will be used for the dialog caption.}
+
\wxheading{Include files}
<wx/fontdlg.h>
\begin{twocollist}\itemsep=0pt
\twocolitem{wxYES\_NO}{Puts Yes and No buttons on the message box. May be combined with
wxCANCEL.}
-\twocolitem{wxCANCEL}{Puts a Cancel button on the message box. May be combined with
+\twocolitem{wxCANCEL}{Puts a Cancel button on the message box. May only be combined with
wxYES\_NO or wxOK.}
\twocolitem{wxOK}{Puts an Ok button on the message box. May be combined with wxCANCEL.}
\twocolitem{wxICON\_EXCLAMATION}{Displays an exclamation mark symbol.}
\func{int}{wxFinite}{\param{double }{x}}
-Returns a non-zero value if {\it x} is neither infinite or NaN (not a number),
+Returns a non-zero value if {\it x} is neither infinite or NaN (not a number),
returns 0 otherwise.
\membersection{::wxEnumClipboardFormats}\label{wxenumclipboardformats}
-\func{int}{wxEnumClipboardFormats}{\param{int}{dataFormat}}
+\func{int}{wxEnumClipboardFormats}{\param{int}{ dataFormat}}
Enumerates the formats found in a list of available formats that belong
to the clipboard. Each call to this function specifies a known
\membersection{::wxGetClipboardData}\label{wxgetclipboarddata}
-\func{wxObject *}{wxGetClipboardData}{\param{int}{dataFormat}}
+\func{wxObject *}{wxGetClipboardData}{\param{int}{ dataFormat}}
Gets data from the clipboard.
\membersection{::wxGetClipboardFormatName}\label{wxgetclipboardformatname}
-\func{bool}{wxGetClipboardFormatName}{\param{int}{dataFormat}, \param{const wxString\& }{formatName}, \param{int}{maxCount}}
+\func{bool}{wxGetClipboardFormatName}{\param{int}{ dataFormat}, \param{const wxString\& }{formatName}, \param{int}{ maxCount}}
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}}
+\func{bool}{wxIsClipboardFormatAvailable}{\param{int}{ dataFormat}}
Returns true if the given data format is available on the clipboard.
\membersection{::wxSetClipboardData}\label{wxsetclipboarddata}
-\func{bool}{wxSetClipboardData}{\param{int}{dataFormat}, \param{wxObject *}{data}, \param{int}{width}, \param{int}{height}}
+\func{bool}{wxSetClipboardData}{\param{int}{ dataFormat}, \param{wxObject*}{ data}, \param{int}{ width}, \param{int}{ height}}
Passes data to the clipboard.
The clipboard must have previously been opened for this call to succeed.
-
-
\section{Miscellaneous functions}\label{miscellany}
\func{}{wxDYNLIB\_FUNCTION}{\param{}{type}, \param{}{name}, \param{}{dynlib}}
-When loading a function from a DLL you always have to cast the returned
+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}
+function \arg{name} from the \helpref{wxDynamicLibrary}{wxdynamiclibrary}
\arg{dynlib}.
\wxheading{Parameters}
\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).
+For normal keys, returns \true if the specified key is currently down.
+
+For togglable keys (Caps Lock, Num Lock and Scroll Lock), returns
+\true if the key is toggled such that its LED indicator is lit. There is
+currently no way to test whether togglable keys are up or down.
+
+Even though there are virtual key codes defined for mouse buttons, they
+cannot be used with this function currently.
\wxheading{Include files}
<wx/utils.h>
+\membersection{wxON\_BLOCK\_EXIT}\label{wxonblockexit}
+
+\func{}{wxON\_BLOCK\_EXIT0}{\param{}{func}}
+\func{}{wxON\_BLOCK\_EXIT1}{\param{}{func}, \param{}{p1}}
+\func{}{wxON\_BLOCK\_EXIT2}{\param{}{func}, \param{}{p1}, \param{}{p2}}
+
+This family of macros allows to ensure that the global function \arg{func}
+with 0, 1, 2 or more parameters (up to some implementaton-defined limit) is
+executed on scope exit, whether due to a normal function return or because an
+exception has been thrown. A typical example of its usage:
+\begin{verbatim}
+ void *buf = malloc(size);
+ wxON_BLOCK_EXIT1(free, buf);
+\end{verbatim}
+
+Please see the original article by Andrei Alexandrescu and Petru Marginean
+published in December 2000 issue of \emph{C/C++ Users Journal} for more
+details.
+
+\wxheading{Include files}
+
+<wx/scopeguard.h>
+
+\wxheading{See also}
+
+\helpref{wxON\_BLOCK\_EXIT\_OBJ}{wxonblockexitobj}
+
+
+\membersection{wxON\_BLOCK\_EXIT\_OBJ}\label{wxonblockexitobj}
+
+\func{}{wxON\_BLOCK\_EXIT\_OBJ0}{\param{}{obj}, \param{}{method}}
+\func{}{wxON\_BLOCK\_EXIT\_OBJ1}{\param{}{obj}, \param{}{method}, \param{}{p1}}
+\func{}{wxON\_BLOCK\_EXIT\_OBJ2}{\param{}{obj}, \param{}{method}, \param{}{p1}, \param{}{p2}}
+
+This family of macros is similar to \helpref{wxON\_BLOCK\_EXIT}{wxonblockexit}
+but calls a method of the given object instead of a free function.
+
+\wxheading{Include files}
+
+<wx/scopeguard.h>
+
+
\membersection{::wxRegisterId}\label{wxregisterid}
\func{void}{wxRegisterId}{\param{long}{ id}}
\membersection{::wxEnableTopLevelWindows}\label{wxenabletoplevelwindows}
-\func{void}{wxEnableTopLevelWindow}{\param{bool}{ enable = true}}
+\func{void}{wxEnableTopLevelWindows}{\param{bool}{ enable = true}}
This function enables or disables all top level windows. It is used by
\helpref{::wxSafeYield}{wxsafeyield}.
\func{wxWindow *}{wxGetActiveWindow}{\void}
-Gets the currently active window (Windows only).
+Gets the currently active window (implemented for MSW and GTK only currently,
+always returns \NULL in the other ports).
\wxheading{Include files}
<wx/windows.h>
+\membersection{::wxGetBatteryState}\label{wxgetbatterystate}
+
+\func{wxBatteryState}{wxGetBatteryState}{\void}
+
+Returns battery state as one of \texttt{wxBATTERY\_NORMAL\_STATE},
+\texttt{wxBATTERY\_LOW\_STATE}, \texttt{wxBATTERY\_CRITICAL\_STATE},
+\texttt{wxBATTERY\_SHUTDOWN\_STATE} or \texttt{wxBATTERY\_UNKNOWN\_STATE}.
+\texttt{wxBATTERY\_UNKNOWN\_STATE} is also the default on platforms where
+this feature is not implemented (currently everywhere but MS Windows).
+
+\wxheading{Include files}
+
+<wx/utils.h>
+
+
\membersection{::wxGetDisplayName}\label{wxgetdisplayname}
\func{wxString}{wxGetDisplayName}{\void}
<wx/utils.h>
+\membersection{::wxGetPowerType}\label{wxgetpowertype}
+
+\func{wxPowerType}{wxGetPowerType}{\void}
+
+Returns the type of power source as one of \texttt{wxPOWER\_SOCKET},
+\texttt{wxPOWER\_BATTERY} or \texttt{wxPOWER\_UNKNOWN}.
+\texttt{wxPOWER\_UNKNOWN} is also the default on platforms where this
+feature is not implemented (currently everywhere but MS Windows).
+
+\wxheading{Include files}
+
+<wx/utils.h>
+
+
\membersection{::wxGetMousePosition}\label{wxgetmouseposition}
\func{wxPoint}{wxGetMousePosition}{\void}
<wx/utils.h>
+\membersection{::wxGetMouseState}\label{wxgetmousestate}
+
+\func{wxMouseState}{wxGetMouseState}{\void}
+
+Returns the current state of the mouse. Returns a wxMouseState
+instance that contains the current position of the mouse pointer in
+screen coordinants, as well as boolean values indicating the up/down
+status of the mouse buttons and the modifier keys.
+
+\wxheading{Include files}
+
+<wx/utils.h>
+
+wxMouseState has the following interface:
+
+\begin{verbatim}
+class wxMouseState
+{
+public:
+ wxMouseState();
+
+ wxCoord GetX();
+ wxCoord GetY();
+
+ bool LeftDown();
+ bool MiddleDown();
+ bool RightDown();
+
+ bool ControlDown();
+ bool ShiftDown();
+ bool AltDown();
+ bool MetaDown();
+ bool CmdDown();
+
+ void SetX(wxCoord x);
+ void SetY(wxCoord y);
+
+ void SetLeftDown(bool down);
+ void SetMiddleDown(bool down);
+ void SetRightDown(bool down);
+
+ void SetControlDown(bool down);
+ void SetShiftDown(bool down);
+ void SetAltDown(bool down);
+ void SetMetaDown(bool down);
+};
+\end{verbatim}
+
+
\membersection{::wxGetResource}\label{wxgetresource}
\func{bool}{wxGetResource}{\param{const wxString\& }{section}, \param{const wxString\& }{entry},
<wx/utils.h>
+\membersection{::wxGetStockLabel}\label{wxgetstocklabel}
+
+\func{wxString}{wxGetStockLabel}{\param{wxWindowID }{id}, \param{bool }{withCodes = true}, \param{const wxString\& }{accelerator = wxEmptyString}}
+
+Returns label that should be used for given {\it id} element.
+
+\wxheading{Parameters}
+
+\docparam{id}{given id of the \helpref{wxMenuItem}{wxmenuitem}, \helpref{wxButton}{wxbutton}, \helpref{wxToolBar}{wxtoolbar} tool, etc.}
+
+\docparam{withCodes}{if false then strip accelerator code from the label;
+usefull for getting labels without accelerator char code like for toolbar tooltip or
+under platforms without traditional keyboard like smartphones}
+
+\docparam{accelerator}{optional accelerator string automatically added to label; useful
+for building labels for \helpref{wxMenuItem}{wxmenuitem}}
+
+\wxheading{Include files}
+
+<wx/stockitem.h>
+
+
\membersection{::wxGetTopLevelParent}\label{wxgettoplevelparent}
\func{wxWindow *}{wxGetTopLevelParent}{\param{wxWindow }{*win}}
<wx/window.h>
+\membersection{::wxLaunchDefaultBrowser}\label{wxlaunchdefaultbrowser}
+
+\func{bool}{wxLaunchDefaultBrowser}{\param{const wxString\& }{url}, \param{int }{flags = $0$}}
+
+Open the \arg{url} in user's default browser. If \arg{flags} parameter contains
+\texttt{wxBROWSER\_NEW\_WINDOW} flag, a new window is opened for the URL
+(currently this is only supported under Windows).
+
+Returns \true if the application was successfully launched.
+
+\wxheading{Include files}
+
+<wx/utils.h>
+
+
\membersection{::wxLoadUserResource}\label{wxloaduserresource}
\func{wxString}{wxLoadUserResource}{\param{const wxString\& }{resourceName}, \param{const wxString\& }{resourceType=``TEXT"}}
\membersection{::wxStripMenuCodes}\label{wxstripmenucodes}
-\func{wxString}{wxStripMenuCodes}{\param{const wxString\& }{in}}
-
-\func{void}{wxStripMenuCodes}{\param{char *}{in}, \param{char *}{out}}
+\func{wxString}{wxStripMenuCodes}{\param{const wxString\& }{str}, \param{int }{flags = wxStrip\_All}}
-{\bf NB:} This function is obsolete, please use
-\helpref{wxMenuItem::GetLabelFromText}{wxmenuitemgetlabelfromtext} instead.
+Strips any menu codes from \arg{str} and returns the result.
-Strips any menu codes from {\it in} and places the result
-in {\it out} (or returns the new string, in the first form).
+By default, the functions strips both the mnemonics character (\texttt{'\&'})
+which is used to indicate a keyboard shortkey, and the accelerators, which are
+used only in the menu items and are separated from the main text by the
+\texttt{$\backslash$t} (TAB) character. By using \arg{flags} of
+\texttt{wxStrip\_Mnemonics} or \texttt{wxStrip\_Accel} to strip only the former
+or the latter part, respectively.
-Menu codes include \& (mark the next character with an underline
-as a keyboard shortkey in Windows and Motif) and $\backslash$t (tab in Windows).
+Notice that in most cases
+\helpref{wxMenuItem::GetLabelFromText}{wxmenuitemgetlabelfromtext} or
+\helpref{wxControl::GetLabelText}{wxcontrolgetlabeltext} can be used instead.
\wxheading{Include files}
<wx/utils.h>
+\membersection{wxSUPPRESS\_GCC\_PRIVATE\_DTOR\_WARNING}\label{wxsuppressgccprivatedtorwarning}
+
+\func{}{wxSUPPRESS\_GCC\_PRIVATE\_DTOR\_WARNING}{\param{}{name}}
+
+GNU C++ compiler gives a warning for any class whose destructor is private
+unless it has a friend. This warning may sometimes be useful but it doesn't
+make sense for reference counted class which always delete themselves (hence
+destructor should be private) but don't necessarily have any friends, so this
+macro is provided to disable the warning in such case. The \arg{name} parameter
+should be the name of the class but is only used to construct a unique friend
+class name internally. Example of using the macro:
+
+\begin{verbatim}
+ class RefCounted
+ {
+ public:
+ RefCounted() { m_nRef = 1; }
+ void IncRef() { m_nRef++ ; }
+ void DecRef() { if ( !--m_nRef ) delete this; }
+
+ private:
+ ~RefCounted() { }
+
+ wxSUPPRESS_GCC_PRIVATE_DTOR(RefCounted)
+ };
+\end{verbatim}
+
+Notice that there should be no semicolon after this macro.
+
+
\membersection{wxULL}\label{wxull}
\func{wxLongLong\_t}{wxULL}{\param{}{number}}
\membersection{wxVaCopy}\label{wxvacopy}
-\func{void}{wxVaCopy}{\param{va\_list }{argptrDst}, \param{va\_list}{argptrSrc}}
+\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
+As with \texttt{va\_start}, each call to \texttt{wxVaCopy} must have a matching
\texttt{va\_end}.
<wx/utils.h>
+\membersection{\_\_WXFUNCTION\_\_}\label{wxfunction}
+
+\func{}{\_\_WXFUNCTION\_\_}{\void}
+
+This macro expands to the name of the current function if the compiler supports
+any of \texttt{\_\_FUNCTION\_\_}, \texttt{\_\_func\_\_} or equivalent variables
+or macros or to \NULL if none of them is available.
+
+
\section{Byte order macros}\label{byteordermacros}
\func{}{DECLARE\_APP}{className}
-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
+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:
\func{}{DECLARE\_DYNAMIC\_CLASS}{className}
-Used inside a class declaration to declare that the objects of this class should be dynamically
-creatable from run-time type information.
+Used inside a class declaration to make the class known to wxWidgets RTTI
+system and also declare that the objects of this class should be dynamically
+creatable from run-time type information. Notice that this implies that the
+class should have a default constructor, if this is not the case consider using
+\helpref{DECLARE\_CLASS}{declareclass}.
Example:
\helpref{RTTI overview}{runtimeclassoverview}\\
\helpref{wxDynamicCastThis}{wxdynamiccastthis}\\
\helpref{wxConstCast}{wxconstcast}\\
-\helpref{wxStatiicCast}{wxstaticcast}
+\helpref{wxStaticCast}{wxstaticcast}
\membersection{wxDynamicCastThis}\label{wxdynamiccastthis}
This macro is equivalent to {\tt wxDynamicCast(this, classname)} but the
latter provokes spurious compilation warnings from some compilers (because it
-tests whether {\tt this} pointer is non {\tt NULL} which is always true), so
+tests whether {\tt this} pointer is non-{\tt NULL} which is always true), so
this macro should be used to avoid them.
\wxheading{See also}
\func{T}{wx\_const\_cast}{T, x}
-Same as \texttt{const\_cast<T>(x)} if the compiler supports const cast or
+Same as \texttt{const\_cast<T>(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.
\func{T}{wx\_reinterpret\_cast}{T, x}
-Same as \texttt{reinterpret\_cast<T>(x)} if the compiler supports reinterpret cast or
+Same as \texttt{reinterpret\_cast<T>(x)} if the compiler supports reinterpret cast or
\texttt{(T)x} for old compilers.
\wxheading{See also}
\func{T}{wx\_static\_cast}{T, x}
-Same as \texttt{static\_cast<T>(x)} if the compiler supports static cast or
+Same as \texttt{static\_cast<T>(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
\wxheading{See also}
\helpref{wx\_const\_cast}{wxconstcastraw},\\
-\helpref{wx\_reinterpret\_cast}{wxreinterpretcastraw}
+\helpref{wx\_reinterpret\_cast}{wxreinterpretcastraw},\\
+\helpref{wx\_truncate\_cast}{wxtruncatecast}
+
+
+\membersection{wx\_truncate\_cast}\label{wxtruncatecast}
+\func{T}{wx\_truncate\_cast}{T, x}
+
+This case doesn't correspond to any standard cast but exists solely to make
+casts which possibly result in a truncation of an integer value more readable.
+
+\wxheading{See also}
+
+\helpref{wx\_static\_cast}{wxstaticcastraw}
\section{Log functions}\label{logfunctions}
\func{void}{wxVLogMessage}{\param{const char *}{formatString}, \param{va\_list }{argPtr}}
For all normal, informational messages. They also appear in a message box by
-default (but it can be changed). Notice that the standard behaviour is to not
-show informational messages if there are any errors later - the logic being
-that the later error messages make the informational messages preceding them
-meaningless.
-
+default (but it can be changed).
\membersection{::wxLogVerbose}\label{wxlogverbose}
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
+nanosleep(2) may provide it) in which case this is the same as
\helpref{wxMilliSleep}{wxmillisleep}(\arg{microseconds}$/1000$).
\wxheading{Include files}
\func{void}{wxUsleep}{\param{unsigned long}{ milliseconds}}
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}
+argument is in milliseconds, not microseconds. Please use either
+\helpref{wxMilliSleep}{wxmillisleep} or \helpref{wxMicroSleep}{wxmicrosleep}
depending on the resolution you need.
\membersection{::wxOnAssert}\label{wxonassert}
-\func{void}{wxOnAssert}{\param{const char *}{fileName}, \param{int}{ lineNumber}, \param{const char *}{cond}, \param{const char *}{msg = NULL}}
+\func{void}{wxOnAssert}{\param{const char *}{fileName}, \param{int}{ lineNumber}, \param{const char *}{func}, \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
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
+\helpref{wxApp::OnAssertFailure}{wxapponassertfailure} which is called by this function if
the global application object exists.
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.
-This macro may be only used in non void functions, see also
+This macro may be only used in non-void functions, see also
\helpref{wxCHECK\_RET}{wxcheckret}.
\func{bool}{wxIsDebuggerRunning}{\void}
-Returns {\tt true} if the program is running under debugger, {\tt false}
-otherwise.
+Returns \true if the program is running under debugger, \false otherwise.
-Please note that this function is currently only implemented for Mac builds
-using CodeWarrior and always returns {\tt false} elsewhere.
+Please note that this function is currently only implemented for Win32 and Mac
+builds using CodeWarrior and always returns \false elsewhere.
{\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 \true if the variable exists, \false otherwise.
\membersection{wxSetEnv}\label{wxsetenv}
Sets the value of the environment variable {\it var} (adding it if necessary)
to {\it value}.
-Returns {\tt true} on success.
+Returns \true on success.
\membersection{wxUnsetEnv}\label{wxunsetenv}
\helpref{wxGetEnv}{wxgetenv} will return {\tt NULL} after the call to this
function.
-Returns {\tt true} on success.
-
+Returns \true on success.
projects / wxWidgets.git / blobdiff