This ensures that the panel background is used by its transparent children
under wxMSW even when the panel itself is inside a wxNotebook with themed
background: making InheritsBackgroundColour() return true prevents the
notebook from overriding our background.
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@67304 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This method provides a simple way to set a background bitmap without defining
an EVT_ERASE_BACKGROUND handler and, more importantly, one that works
correctly in wxMSW for a window with children as it paints the background of
transparent children too.
Add a test of this method to the erase sample.
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@67253 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
So far we have only wxMSW-specific implementation (and also a trivial
wxUniv-specific one) but it's still tidier to have all platform-specific code
in separate files, especially as we're going to have more of it for wxMSW
soon.
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@67251 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
