- // return the background colour of this window under the given child
- // (possible grand child)
- //
- // this is a hack as if the background is themed, there is no single colour
- // representing it, but sometimes we can't use the pattern brush returned
- // by MSWGetBgBrushForChild() anyhow and then this function is used as
- // fallback
+ // return the background brush to use for painting the given window by
+ // quering the parent windows via their MSWGetBgBrushForChild() recursively