changed exceptions handling to work under wxGTK

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@34717 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

docs/latex/wx/evthand.tex

@@ -155,6 +155,20 @@ to disconnect functions connected using the (static) event tables.
 \perlnote{In wxPerl this function takes 3 arguments: \texttt{id,
 lastid, type}.}
 
+\membersection{wxEvtHandler::DoHandleEvent}\label{wxevthandlerdohandleevent}
+
+\func{virtual void}{DoHandleEvent}{\param{wxEventFunction}{ func}, \param{wxEvent\& }{event}}
+
+This function simply invokes the given method \arg{func} of this
+event handler with the \arg{event} as parameter. It exists solely
+to allow to catch the C++ exceptions which could be thrown by this event
+handlers in one place: if you want to do this, override this
+function in your wxEvtHandler-derived class and add try/catch clause(s) to it.
+
+Exceptions not caught at this level propagate to
+\helpref{wxApp::HandleEvent}{wxapphandleevent} which in turn calls
+\helpref{wxApp::OnExceptionInMainLoop}{wxapponexceptioninmainloop}.
+
 \membersection{wxEvtHandler::GetClientData}\label{wxevthandlergetclientdata}
 
 \func{void* }{GetClientData}{\void}