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MCI_OVLY_LOAD_PARMS
 
        The MCI_OVLY_LOAD_PARMS structure contains the information for
        the MCI_LOAD message for video overlay devices. When assigning
        data to the fields in this data structure, set the corresponding
        MCI flags in the dwFlags parameter of mciSendCommand to
        validate the fields.
 
        typedef struct {
            DWORD dwCallback;
            LPCSTR lpfilename;
            RECT rc;
        } MCI_LOAD_PARMS;
 
Parameters
        DWORD dwCallback
            The low-order word specifies a window handle used for the
            MCI_NOTIFY flag.
 
        LPCSTR lpfilename
            Specifies a far pointer to a null-terminated string containing
            the filename of the device element to load.
 
        RECT rc
            Specifies a valid display rectangle identifying the area of
            the video buffer to update.
 
See also
        MCI_LOAD
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