After creating a (large enough) window programatically, the resize code is bugged unless I

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Asked: June 5, 20262026-06-05T14:01:38+00:00 2026-06-05T14:01:38+00:00

After creating a (large enough) window programatically, the resize code is bugged unless I

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After creating a (large enough) window programatically, the resize code is bugged unless I handle the WM_GETMINMAXINFO message and set ptMaxTrackSize.x and ptMaxTrackSize.y large enough.

But then the window is a bit outside the screen (vertically). Horizontally I can still see the borders (thick border). I click on that border (WM_MOUSEACTIVATE message, which the program does not handle) and the window becomes aligned to the top screen border (visible title bar).

How can I do this programatically (fixing the vertical positioning)?
So instead of having to click the border, what can I do from my software to tell Windows to re-align the window?