MCIWNDM_PUT_SOURCE message

The MCIWNDM_PUT_SOURCE message redefines the coordinates of the source rectangle used for cropping the images of an AVI file during playback. You can send this message explicitly or by using the MCIWndPutSource macro.

MCIWNDM_PUT_SOURCE 
wParam = 0; 
lParam = (LPARAM) (LPRECT) prc; 

Parameters

prc

Pointer to a RECT structure containing the coordinates of the source rectangle.

Return Value

Returns zero if successful or an error otherwise.

Requirements