\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{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{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}\\
\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{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 only takes the {\tt command} argument,
+\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 only takes the {\tt command} argument,
+\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.}
\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}
<wx/thread.h>
\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}
Don't confuse this macro with \helpref{\_()}{underscore}!
-\membersection{\_}\label{underscore}
-
\section{Dialog functions}\label{dialogfunctions}
Below are a number of convenience functions for getting input from the
int answer = wxMessageBox("Quit program?", "Confirm",
wxYES_NO | wxCANCEL, main_frame);
if (answer == wxYES)
- delete main_frame;
+ main_frame->Close();
...
\end{verbatim}
The clipboard must have previously been opened for this call to succeed.
+
\section{Miscellaneous functions}\label{miscellany}
+\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
projects / wxWidgets.git / blobdiff