The MCI_VCR_SETVIDEO_PARMS structure contains parameters for the MCI_SETVIDEO command for video-cassette recorders.
typedef struct tagMCI_VCR_SETVIDEO_PARMS {
    DWORD dwCallback; 
    DWORD dwTrack; 
    DWORD dwTo; 
    DWORD dwNumber; 
} MCI_VCR_SETVIDEO_PARMS;
 When assigning data to the members of this structure, set the corresponding flags in the fdwCommand parameter of the mciSendCommand function to validate the members.
  Windows NT: Requires version 3.1 or later.
  Windows: Requires Windows 95 or later.
  Windows CE: Unsupported.
  Header: Declared in vcr.h.
MCI Overview, MCI Structures, MCI_SETVIDEO, mciSendCommand