"A Button that contains a bitmap. A bitmap button can be supplied with a
single bitmap, and wxWidgets will draw all button states using this bitmap. If
the application needs more control, additional bitmaps for the selected state,
"A Button that contains a bitmap. A bitmap button can be supplied with a
single bitmap, and wxWidgets will draw all button states using this bitmap. If
the application needs more control, additional bitmaps for the selected state,