WM_GETMINMAXINFO

The WM_GETMINMAXINFO message is sent to a window when the size or position of the window is about to change. An application can use this message to override the window's default maximized size and position, or its default minimum or maximum tracking size.

WM_GETMINMAXINFO

lpmmi = (LPMINMAXINFO) lParam; // address of structure

Parameters

lpmmi

Value of lParam. Points to a MINMAXINFO structure that contains the default maximized position and dimensions, and the default minimum and maximum tracking sizes. An application can override the defaults by setting the members of this structure.

Return Values

If an application processes this message, it should return zero.

Remarks

The maximum tracking size is the largest window size that can be produced by using the borders to size the window. The minimum tracking size is the smallest window size that can be produced by using the borders to size the window.

See Also

MoveWindow, SetWindowPos, MINMAXINFO

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