The MCIWNDM_GET_DEST message retrieves the coordinates of the destination rectangle used for zooming or stretching the images of an AVI file during playback. You can send this message explicitly or by using the MCIWndGetDest macro.
MCIWNDM_GET_DEST
wParam = 0;
lParam = (LPARAM) (LPRECT) prc;
Returns zero if successful or an error otherwise.
Windows NT: Requires version 3.1 or later.
Windows: Requires Windows 95 or later.
Windows CE: Unsupported.
Header: Declared in vfw.h.
MCIWnd Window Class Overview, MCIWnd Messages, MCIWndGetDest, RECT