Stuff that needs fixing
- Sometimes, controls in a wxPanel won't size themselves properly at
program startup if the wxPanel is created before menus are added. The controls
will properly position themselves after their parent is resized, or if the creation
of the wxPanel is moved after the menus are created.
- wxMDIChildFrame windows do not show up correctly. This is being investigated.
- The wxEVT_MEDIA* events don't work yet.