X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/954b8ae60391d18b87a604e7919c87c0c6ae208b..6f63704ff4db9da6976547a1378d7e85b966eea7:/docs/latex/wx/closeevt.tex?ds=sidebyside

diff --git a/docs/latex/wx/closeevt.tex b/docs/latex/wx/closeevt.tex
index 781bc9b6b3..4a70a1707d 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 can
+also be invoked by the application itself programmatically, for example by
+calling the \helpref{wxWindow::Close}{wxwindowclose} function.
+
+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}}}
@@ -45,7 +59,7 @@ Constructor.
 
 \func{bool}{CanVeto}{\void}
 
-Returns TRUE if you can veto a system shutdown or a window close event.
+Returns true if you can veto a system shutdown or a window close event.
 Vetoing a window close event is not possible if the calling code wishes to
 force the application to exit, and so this function must be called to check this.
 
@@ -53,19 +67,19 @@ force the application to exit, and so this function must be called to check this
 
 \constfunc{bool}{GetLoggingOff}{\void}
 
-Returns TRUE if the user is logging off.
+Returns true if the user is logging off.
 
 \membersection{wxCloseEvent::GetSessionEnding}\label{wxcloseeventgetsessionending}
 
 \constfunc{bool}{GetSessionEnding}{\void}
 
-Returns TRUE if the session is ending.
+Returns true if the session is ending.
 
 \membersection{wxCloseEvent::GetForce}\label{wxcloseeventgetforce}
 
 \constfunc{bool}{GetForce}{\void}
 
-Returns TRUE if the application wishes to force the window to close.
+Returns true if the application wishes to force the window to close.
 This will shortly be obsolete, replaced by CanVeto.
 
 \membersection{wxCloseEvent::SetCanVeto}\label{wxcloseeventsetcanveto}
@@ -88,12 +102,12 @@ Sets the 'logging off' flag.
 
 \membersection{wxCloseEvent::Veto}\label{wxcloseeventveto}
 
-\func{void}{Veto}{\param{bool}{ veto = TRUE}}
+\func{void}{Veto}{\param{bool}{ veto = true}}
 
 Call this from your event handler to veto a system shutdown or to signal
 to the calling application that a window close did not happen.
 
 You can only veto a shutdown if \helpref{wxCloseEvent::CanVeto}{wxcloseeventcanveto} returns
-TRUE.
+true.
 
 
