X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/387a3b02e02d91da6c5d4331b667d835e32c83b0..5b222f1c9e0acb63c781675555c76f6129316eb1:/docs/latex/wx/closeevt.tex diff --git a/docs/latex/wx/closeevt.tex b/docs/latex/wx/closeevt.tex index 19576f9e7f..6ea5728e48 100644 --- a/docs/latex/wx/closeevt.tex +++ b/docs/latex/wx/closeevt.tex @@ -2,10 +2,28 @@ This event class contains information about window and session close events. +The handler function for EVT\_CLOSE is called when the user has tried to close a a frame +or dialog box using the window manager (X) or system menu (Windows). It is +called via the \helpref{wxWindow::Close}{wxwindowclose} function, so +that the application can also invoke the handler programmatically. + +You should check whether the application is forcing the deletion of the window +using \helpref{wxCloseEvent::CanVeto}{wxcloseeventcanveto}. If this is {\tt FALSE}, +you {\it must} destroy the window using \helpref{wxWindow::Destroy}{wxwindowdestroy}. +If the return value is TRUE, it is up to you whether you respond by destroying the window. + +If you don't destroy the window, you should call \helpref{wxCloseEvent::Veto}{wxcloseeventveto} to +let the calling code know that you did not destroy the window. This allows the \helpref{wxWindow::Close}{wxwindowclose} function +to return {\tt TRUE} or {\tt FALSE} depending on whether the close instruction was honoured or not. + \wxheading{Derived from} \helpref{wxEvent}{wxevent} +\wxheading{Include files} + + + \wxheading{Event table macros} To process a close event, use these event handler macros to direct input to member @@ -17,16 +35,16 @@ functions that take a wxCloseEvent argument. event applies to wxFrame and wxDialog classes.} \twocolitem{{\bf EVT\_QUERY\_END\_SESSION(func)}}{Process a query end session event, supplying the member function. This event applies to wxApp only.} -\twocolitem{{\bf EVT\__END\_SESSION(func)}}{Process an end session event, supplying the member function. +\twocolitem{{\bf EVT\_END\_SESSION(func)}}{Process an end session event, supplying the member function. This event applies to wxApp only.} \end{twocollist}% \wxheading{See also} -\helpref{wxWindow::OnCloseWindow}{wxwindowonclosewindow},\rtfsp \helpref{wxWindow::Close}{wxwindowclose},\rtfsp -\helpref{wxApp::OnQueryEndSession}{wxappqueryendsession},\rtfsp -\helpref{wxApp::OnEndSession}{wxappendsession},\rtfsp +\helpref{wxApp::OnQueryEndSession}{wxapponqueryendsession},\rtfsp +%% GD: OnXXX functions are not documented +%%\helpref{wxApp::OnEndSession}{wxapponendsession},\rtfsp \helpref{Window deletion overview}{windowdeletionoverview} \latexignore{\rtfignore{\wxheading{Members}}}