The Old New Thing

What happens if I don't paint when I get a WM_PAINT message?

December 3, 2014 Dec 3, 2014 12/3/14

Raymond Chen

Suppose your window procedure doesn't paint when it gets a message. What happens? It depends on how you don't paint. If you have an explicit handler for the message that does nothing but return without painting, then the window manager will turn around and put a new message in your queue. "And try harder this time." Remember that the ...