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return false from IsDoubleBuffered() if the first top level parent is not double buffered

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git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@41814 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Vadim Zeitlin 2006-10-09 16:57:06 +00:00
parent b85db900cd
commit c719013fd4
1 changed files with 4 additions and 5 deletions
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9
src/msw/window.cpp
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@ -3952,13 +3952,12 @@ bool wxWindowMSW::HandlePower(WXWPARAM WXUNUSED_IN_WINCE(wParam),
bool wxWindowMSW::IsDoubleBuffered() const
{
const wxWindow* wnd = this;
while ( wnd )
for ( const wxWindow *wnd = this;
wnd && !wnd->IsTopLevel(); wnd =
wnd->GetParent() )
{
if ( ::GetWindowLong((HWND)wnd->GetHWND(), GWL_EXSTYLE) & WS_EX_COMPOSITED )
if ( ::GetWindowLong(GetHwndOf(wnd), GWL_EXSTYLE) & WS_EX_COMPOSITED )
return true;
wnd = wnd->GetParent();
}
return false;