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WM_CAP_SET_SCROLL
The WM_CAP_SET_SCROLL message defines the portion of the video frame to
display in the capture window. This message sets the upper left corner of the client
area of the capture window to the coordinates of a specified pixel within the
video frame. You can send this message explicitly or by using the capSetScrollPos macro.
WM_CAP_SET_SCROLL
wParam = (WPARAM) 0;
lParam = (LPARAM) (LPPOINT) (lpP);
Parameters
lpP
Address to contain the desired scroll position.
Return Values
Returns TRUE if successful or FALSE otherwise.
Remarks
The scroll position affects the image in both preview and overlay modes.
See Also
capSetScrollPos
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