Comment by userbinator
15 hours ago
unless the app is a game
...and even if the app is a game, it can still make great use of Win32 controls creatively. Minesweeper is one example that comes with Windows, and I remember plenty of other casual (non-3d) games in the 90s/early 2000s making use of buttons, both ownerdrawn and stock, likely to avoid having to write their own hit-testing code.
I don't think the original Minesweeper used actual buttons for its playing field. That'd be a lot of controls that can be better handled by one custom drawn control. They also did look different from actual Win32 buttons which likely is another clue.
Upon closer inspection, you're right about the playing field; but the preference and high score dialogs are made of entirely standard Win32 controls.