I suspect this is more a Windows question than a language one. And it's not homework, I'm trying to get a handle on Windows programming. The goal is to create a checkerboard, without the checkers.

We've all seen the checkerboard pattern before – perhaps as the floor in a retro kitchen or as the upholstery on a trendy, Gen Z-approved accent chair. It's a pattern that's been reused, adapted, and ...