<wx/app.h>
+\wxheading{Library}
+
+\helpref{wxBase}{librarieslist}
+
\wxheading{See also}
\helpref{wxApp overview}{wxappoverview}
\membersection{wxApp::\destruct{wxApp}}\label{wxappdtor}
-\func{}{\destruct{wxApp}}{\void}
+\func{virtual}{\destruct{wxApp}}{\void}
Destructor. Will be called implicitly on program exit if the wxApp
object is created on the stack.
\helpref{wxLog}{wxlog}
+\membersection{wxApp::CreateTraits}\label{wxappcreatetraits}
+
+\func{virtual wxAppTraits *}{CreateTraits}{\void}
+
+Creates the \helpref{wxAppTraits}{wxapptraits} object when \helpref{GetTraits}{wxappgettraits}
+needs it for the first time.
+
+\wxheading{See also}
+
+\helpref{wxAppTraits}{wxapptraits}
+
+
\membersection{wxApp::Dispatch}\label{wxappdispatch}
\func{virtual void}{Dispatch}{\void}
\helpref{SetTopWindow}{wxappsettopwindow}
+
+\membersection{wxApp::GetTraits}\label{wxappgettraits}
+
+\func{wxAppTraits *}{GetTraits}{\void}
+
+Returns a pointer to the \helpref{wxAppTraits}{wxapptraits} object for the application.
+If you want to customize the \helpref{wxAppTraits}{wxapptraits} object, you must override the
+\helpref{CreateTraits}{wxappcreatetraits} function.
+
+
+
\membersection{wxApp::GetUseBestVisual}\label{wxappgetusebestvisual}
\constfunc{bool}{GetUseBestVisual}{\void}
Returns the application's vendor name.
-\membersection{wxApp::HandleEvent}\label{wxapphandleevent}
-
-\constfunc{virtual void}{HandleEvent}{\param{wxEvtHandler}{ *handler}, \param{wxEventFunction}{ func}, \param{wxEvent\& }{event}}
-
-This function simply invokes the
-\helpref{DoHandleEvent}{wxevthandlerdohandleevent} method of event handler
-\arg{handler}, passing \arg{func} and \arg{event} as parameters. If an
-exception occurs, \helpref{OnExceptionInMainLoop}{wxapponexceptioninmainloop}
-is called by this function. You can override it to customize exceptions
-handling.
-
-If you want to modify this behaviour, override this function.
-
-
\membersection{wxApp::IsActive}\label{wxappisactive}
\constfunc{bool}{IsActive}{\void}
Returns \true if the main event loop is currently running, i.e. if the
application is inside \helpref{OnRun}{wxapponrun}.
-This can be useful to test whether the events can be dispatched. For example,
+This can be useful to test whether events can be dispatched. For example,
if this function returns \false, non-blocking sockets cannot be used because
the events from them would never be processed.
%%\helpref{wxWindow::OnCharHook}{wxwindowoncharhook}, \helpref{wxDialog::OnCharHook}{wxdialogoncharhook}
-\membersection{wxApp::OnAssert}\label{wxapponassert}
+\membersection{wxApp::OnAssertFailure}\label{wxapponassertfailure}
-\func{void}{OnAssert}{\param{const wxChar }{*file}, \param{int }{line}, \param{const wxChar }{*cond}, \param{const wxChar }{*msg}}
+\func{void}{OnAssertFailure}{\param{const wxChar }{*file}, \param{int }{line}, \param{const wxChar }{*func}, \param{const wxChar }{*cond}, \param{const wxChar }{*msg}}
This function is called when an assert failure occurs, i.e. the condition
specified in \helpref{wxASSERT}{wxassert} macro evaluated to {\tt false}.
It is only called in debug mode (when {\tt \_\_WXDEBUG\_\_} is defined) as
asserts are not left in the release code at all.
-The base class version show the default assert failure dialog box proposing to
+The base class version shows the default assert failure dialog box proposing to
the user to stop the program, continue or ignore all subsequent asserts.
\wxheading{Parameters}
\docparam{line}{the line number in this file where the assert occurred}
-\docparam{cond}{the condition of the failed assert in string form}
+\docparam{func}{the name of the function where the assert occurred, may be
+empty if the compiler doesn't support C99 \texttt{\_\_FUNCTION\_\_}}
+
+\docparam{cond}{the condition of the failed assert in text form}
\docparam{msg}{the message specified as argument to
\helpref{wxASSERT\_MSG}{wxassertmsg} or \helpref{wxFAIL\_MSG}{wxfailmsg}, will
This function is called when an unhandled C++ exception occurs inside
\helpref{OnRun()}{wxapponrun} (the exceptions which occur during the program
-startup and shutdown might not be caught at all).
-Note that the exception type is lost by now, so if you want to really handle
-the exception you should override \helpref{OnRun()}{wxapponrun} and put a
-try/catch clause around the call to the base class version there.
+startup and shutdown might not be caught at all). Notice that by now the main
+event loop has been terminated and the program will exit, if you want to
+prevent this from happening (i.e. continue running after catching an exception)
+you need to override \helpref{OnExceptionInMainLoop}{wxapponexceptioninmainloop}.
+
+The default implementation shows information about the exception in debug build
+but does nothing in the release build.
\membersection{wxApp::ProcessMessage}\label{wxappprocessmessage}
\membersection{wxApp::SetUseBestVisual}\label{wxappsetusebestvisual}
-\func{void}{SetUseBestVisual}{\param{bool}{ flag}}
+\func{void}{SetUseBestVisual}{\param{bool}{ flag}, \param{bool}{ forceTrueColour = false}}
Allows the programmer to specify whether the application will use the best visual
on systems that support several visual on the same display. This is typically the
case under Solaris and IRIX, where the default visual is only 8-bit whereas certain
applications are supposed to run in TrueColour mode.
+If \arg{forceTrueColour} is true then the application will try to force
+using a TrueColour visual and abort the app if none is found.
+
Note that this function has to be called in the constructor of the {\tt wxApp}
instance and won't have any effect when called later on.
\docparam{flag}{If true, the app will use the best visual.}
+
+\membersection{wxApp::HandleEvent}\label{wxapphandleevent}
+
+\constfunc{virtual void}{HandleEvent}{\param{wxEvtHandler}{ *handler}, \param{wxEventFunction}{ func}, \param{wxEvent\& }{event}}
+
+This function simply invokes the given method \arg{func} of the specified
+event handler \arg{handler} with the \arg{event} as parameter. It exists solely
+to allow to catch the C++ exceptions which could be thrown by all event
+handlers in the application in one place: if you want to do this, override this
+function in your wxApp-derived class and add try/catch clause(s) to it.
+
+
\membersection{wxApp::Yield}\label{wxappyield}
\func{bool}{Yield}{\param{bool}{ onlyIfNeeded = false}}
projects / wxWidgets.git / blobdiff