Part of Solutions: 1. Kill an InvalidateRect: in mainWindowProc.2. Kill any other InvalidateRect. When you Keyup in mainWindowProc only, we can refresh(*1) a screen. (*1)refresh = InvalidateRect Next of Solutions: 1. Call the simple drawin…

w001:From files, we think, one of IDE problems. https://github.com/WaitrudWeber/source_zip/blob/master/cg-20201209-001.zip https://github.com/WaitrudWeber/source_zip/blob/master/cg-20201210-001.zip https://github.com/WaitrudWeber/source_zi…