I see no errors. But I recently solved like your problem by this way: try move your code from "OnDraw" method to "OnPaint" (you must handle WM_PAINT message of course). In my case there was bitmap instead
Dialogs (1) modal - maintaining the database.
Continuing from the ninth article about sudoku.
You might have heard of modal and modeless dialogs. Here with this Sudoku application will we use one of each type: a modal dialog …
Have you tried to learn about Unicode, UTF-8, and multibyte text encoding and all the articles are just too "academic" or too technical? This article aims to make the whole topic easy for just about anyone to understand.