solemnwarning/wxwidgets
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions 4

Avoid creating empty bitmap in MSW wxNotebook::OnPaint()

Browse source 
It can apparently happen that the window has 0 size and in this creating
the bitmap is useless and just triggers an assert.

Closes #18879.
This commit is contained in:
Vadim Zeitlin 2021-01-25 00:32:12 +01:00
parent e094734a89
commit b48c46285c
1 changed files with 4 additions and 2 deletions
Download patch file Download diff file Expand all files Collapse all files

6
src/msw/notebook.cpp
View file

@ -787,11 +787,13 @@ void wxNotebook::OnEraseBackground(wxEraseEvent& WXUNUSED(event))
void wxNotebook::OnPaint(wxPaintEvent& WXUNUSED(event))
{
wxPaintDC dc(this);
wxMemoryDC memdc;
RECT rc;
::GetClientRect(GetHwnd(), &rc);
if ( !rc.right || !rc.bottom )
return;
wxBitmap bmp(rc.right, rc.bottom);
memdc.SelectObject(bmp);
wxMemoryDC memdc(bmp);
const wxLayoutDirection dir = dc.GetLayoutDirection();
memdc.SetLayoutDirection(dir);