Oh (sigh)… I discovered yet another case of an attempt to misuse of
. Let me explain that. This control is designed for somebody who does not want to deal with any graphics at all. Something simple and simpler. Nothing dynamic, animated, combined, manipulated. Pure static image, maybe sometimes replaced, but not often.
By the reason of deep confusion about graphics, many try to do a lot more, which is possible but just silly. This control does not help it, only presents a hassle.
So, what do to? Something way more simple:
How do I clear a panel from old drawing
If you picture is static, it's even simpler than that. Do invalidation, no double buffering. But you can do moving images, animation, saving to file or loading from files and a lot more.