Use COLORONCOLOR stretching mode in DrawBitmap() too [backport of r60034 from trunk].

Closes #3400.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/branches/WX_2_8_BRANCH@63769 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/msw/dc.cpp

@@ -1198,6 +1198,10 @@ void wxDC::DoDrawBitmap( const wxBitmap &bmp, wxCoord x, wxCoord y, bool useMask
             return;
     }
 
+#ifndef __WXWINCE__
+    StretchBltModeChanger changeMode(GetHdc(), COLORONCOLOR);
+#endif
+
     if ( useMask )
     {
         wxMask *mask = bmp.GetMask();