X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/dce5c1dbe1eefd05837f5da615c76de90d92a5c1..ab9d0a8ca3d306898d92960ecfaefb8c1191b18a:/docs/latex/wx/eraseevt.tex diff --git a/docs/latex/wx/eraseevt.tex b/docs/latex/wx/eraseevt.tex index 0eee070ab1..46fa06ebca 100644 --- a/docs/latex/wx/eraseevt.tex +++ b/docs/latex/wx/eraseevt.tex @@ -2,6 +2,16 @@ An erase event is sent when a window's background needs to be repainted. +On some platforms, such as GTK+, this event is simulated (simply generated just before the +paint event) and may cause flicker. It is therefore recommended that +you set the text background colour explicitly in order to prevent flicker. +The default background colour under GTK+ is grey. + +To intercept this event, use the EVT\_ERASE\_BACKGROUND macro in an event table definition. + +You must call wxEraseEvent::GetDC and use the returned device context if it is non-NULL. +If it is NULL, create your own temporary wxClientDC object. + \wxheading{Derived from} \helpref{wxEvent}{wxevent}\\ @@ -28,17 +38,18 @@ the event handler. \wxheading{See also} -\helpref{wxWindow::OnEraseBackground}{wxwindowonerasebackground}, \helpref{Event handling overview}{eventhandlingoverview} +%\helpref{wxWindow::OnEraseBackground}{wxwindowonerasebackground}, +\helpref{Event handling overview}{eventhandlingoverview} \latexignore{\rtfignore{\wxheading{Members}}} -\membersection{wxEraseEvent::wxEraseEvent} +\membersection{wxEraseEvent::wxEraseEvent}\label{wxeraseeventctor} \func{}{wxEraseEvent}{\param{int }{id = 0}, \param{wxDC* }{dc = NULL}} Constructor. -\membersection{wxEraseEvent::m\_dc} +\membersection{wxEraseEvent::m\_dc}\label{wxeraseeventmdc} \member{wxDC*}{m\_dc}