X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/a660d684eda27638bca0384b2058911a31c8e845..6244848856584171db8cd74a7ff227250e46cc54:/docs/latex/wx/app.tex diff --git a/docs/latex/wx/app.tex b/docs/latex/wx/app.tex index c2464a6123..9ffe9c7190 100644 --- a/docs/latex/wx/app.tex +++ b/docs/latex/wx/app.tex @@ -238,6 +238,32 @@ goes idle again, when OnIdle is called, and so on. \helpref{wxWindow::OnIdle}{wxwindowonidle}, \helpref{wxIdleEvent}{wxidleevent},\rtfsp \helpref{wxWindow::SendIdleEvents}{wxappsendidleevents} +\membersection{wxApp::OnEndSession}\label{wxapponendsession} + +\func{void}{OnEndSession}{\param{wxCloseEvent\& }{event}} + +This is an event handler function called when the operating system or GUI session is +about to close down. The application has a chance to silently save information, +and can optionally close itself. + +Use the EVT\_END\_SESSION event table macro to handle query end session events. + +The default handler calls \helpref{wxWindow::Close}{wxwindowclose} with a TRUE argument +(forcing the application to close itself silently). + +\wxheading{Remarks} + +Under X, OnEndSession is called in response to the 'die' event. + +Under Windows, OnEndSession is called in response to the WM\_ENDSESSION message. + +\wxheading{See also} + +\helpref{wxWindow::Close}{wxwindowclose},\rtfsp +\helpref{wxWindow::OnCloseWindow}{wxwindowonclosewindow},\rtfsp +\helpref{wxCloseEvent}{wxcloseevent},\rtfsp +\helpref{wxApp::OnQueryEndSession}{wxapponqueryendsession} + \membersection{wxApp::OnInit}\label{wxapponinit} \func{bool}{OnInit}{\void} @@ -247,16 +273,43 @@ application's main window, calling \helpref{wxApp::SetTopWindow}{wxappsettopwind Return TRUE to continue processing, FALSE to exit the application. -\membersection{wxApp::Pending}\label{wxapppending} +\membersection{wxApp::OnQueryEndSession}\label{wxapponqueryendsession} -\func{bool}{Pending}{\void} +\func{void}{OnQueryEndSession}{\param{wxCloseEvent\& }{event}} -Returns TRUE if unprocessed events are in the window system event queue -(MS Windows and Motif). +This is an event handler function called when the operating system or GUI session is +about to close down. Typically, an application will try to save unsaved documents +at this point. + +If \helpref{wxCloseEvent::CanVeto}{wxcloseeventcanveto} returns TRUE, the application +is allowed to veto the shutdown by calling \helpref{wxCloseEvent::Veto}{wxcloseeventveto}. +The application might veto the shutdown after prompting for documents to be saved, and the +user has cancelled the save. + +Use the EVT\_QUERY\_END\_SESSION event table macro to handle query end session events. + +You should check whether the application is forcing the deletion of the window +using \helpref{wxCloseEvent::GetForce}{wxcloseeventgetforce}. If this is TRUE, +destroy the window using \helpref{wxWindow::Destroy}{wxwindowdestroy}. +If not, it is up to you whether you respond by destroying the window. + +The default handler calls \helpref{wxWindow::Close}{wxwindowclose} on the top-level window, +and vetoes the shutdown if Close returns FALSE. This will be sufficient for many applications. + +\wxheading{Remarks} + +Under X, OnQueryEndSession is called in response to the 'save session' event. + +Under Windows, OnQueryEndSession is called in response to the WM\_QUERYENDSESSION message. \wxheading{See also} -\helpref{wxApp::Dispatch}{wxappdispatch} +\helpref{wxWindow::Close}{wxwindowclose},\rtfsp +\helpref{wxWindow::OnCloseWindow}{wxwindowonclosewindow},\rtfsp +\helpref{wxCloseEvent}{wxcloseevent},\rtfsp +\helpref{wxApp::OnEndSession}{wxapponendsession} + +\membersection{wxWindow::OnScroll}\label{wxwindowonscroll} \membersection{wxApp::ProcessMessage}\label{wxappprocessmessage} @@ -282,6 +335,17 @@ BOOL CTheApp::PreTranslateMessage(MSG *msg) } \end{verbatim} +\membersection{wxApp::Pending}\label{wxapppending} + +\func{bool}{Pending}{\void} + +Returns TRUE if unprocessed events are in the window system event queue +(MS Windows and Motif). + +\wxheading{See also} + +\helpref{wxApp::Dispatch}{wxappdispatch} + \membersection{wxApp::SendIdleEvents}\label{wxappsendidleevents} \func{bool}{SendIdleEvents}{\void}