The UDM_GETPOS message retrieves the current position of an up-down control.
UDM_GETPOS wParam = 0; lParam = 0;
The return value is the current position in the low-order word. If an error occurred, the high-order word is nonzero.
When processing this message, the up-down control updates its current position based on the caption of the buddy window. The up-down control returns an error if there is no buddy window or if the caption specifies an invalid or out-of-range value.
|file: /Techref/os/win/api/win32/mess/src/msg21_22.htm, 1KB, , updated: 2000/4/7 12:20, local time: 2022/8/17 22:26,
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