Drawing panel backgrounds with widgets visible on top

[Frank Aune]

Hello,

1. How do you use an image as a frame or panel background, so that any already 
existing wxwidgets (like statictext, buttons etc) dont get hidden under the 
background image?

2. Is there a way to automatically center the image in the frame/panel, or do 
you have to paint it manually at the correct position?

Thanks,
Frank