As title, please explain the principle

CodePudding user response:

Top, top of the

CodePudding user response:

I don't know what you said double buffering and what is the relationship between the two
But clearly a Graphics in paint event why Create a,,,

CodePudding user response:

Don't know what I want to do, but as long as written in the paint event rendering code, when any want to refresh, call an enclosing Invalidate (); Set redraw

CodePudding user response:

Have a ready-made, why go to create