X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/954b8ae60391d18b87a604e7919c87c0c6ae208b..47610ec22ab01dbc09307a88ab67c1c95f6ee3b1:/docs/latex/wx/closeevt.tex diff --git a/docs/latex/wx/closeevt.tex b/docs/latex/wx/closeevt.tex index 781bc9b6b3..6ea5728e48 100644 --- a/docs/latex/wx/closeevt.tex +++ b/docs/latex/wx/closeevt.tex @@ -2,6 +2,20 @@ 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} @@ -27,10 +41,10 @@ This event applies to wxApp only.} \wxheading{See also} -\helpref{wxWindow::OnCloseWindow}{wxwindowonclosewindow},\rtfsp \helpref{wxWindow::Close}{wxwindowclose},\rtfsp \helpref{wxApp::OnQueryEndSession}{wxapponqueryendsession},\rtfsp -\helpref{wxApp::OnEndSession}{wxapponendsession},\rtfsp +%% GD: OnXXX functions are not documented +%%\helpref{wxApp::OnEndSession}{wxapponendsession},\rtfsp \helpref{Window deletion overview}{windowdeletionoverview} \latexignore{\rtfignore{\wxheading{Members}}}