[CLOSED] Question regarding clipping

[lagprogramming]

Code: Pascal  [Select][+][-]

1. function TQtWidgetSet.RectVisible(dc : hdc; const ARect: TRect) : Boolean;
2. var
3.   QtDC: TQtDeviceContext;
4. begin
5.   {$ifdef VerboseQtWinAPI}
6.   writeln('[WinAPI RectVisible] ');
7.   {$endif}
8.   Result := False;
9.   if not IsValidDC(DC) then Exit;
10.   QtDC := TQtDeviceContext(DC);
11.   // as MSDN says only clipping region can play here
12.   if QtDC.getClipping then
13.     Result := QtDC.getClipRegion.containsRect(ARect);
14. end;

Should RectVisible return true only when QtDC.getClipping is true?

[zeljko]

Yes