The MCI_STEP command steps the player one or more frames. Digital-video, VCR, and CAV-format videodisc devices recognize this command.
MCIERROR mciSendCommand(MCIDEVICEID wDeviceID, MCI_STEP,
DWORD dwFlags, (DWORD) (LPMCI_GENERIC_PARMS) lpStep);
Returns zero if successful or an error otherwise.
This command supports devices that return TRUE to the MCI_GETDEVCAPS_HAS_VIDEO flag of the MCI_GETDEVCAPS command.
The following additional flags are used with the digitalvideo device type:
For digital-video devices, the lpStep parameter points to an MCI_DGV_STEP_PARMS structure.
The following additional flags are used with the vcr device type:
For VCR devices, the lpStep parameter points to an MCI_VCR_STEP_PARMS structure.
The following additional flags are used with the videodisc device type:
For videodisc devices, the lpStep parameter points to an MCI_VD_STEP_PARMS structure.
Windows NT: Requires version 3.1 or later.
Windows: Requires Windows 95 or later.
Windows CE: Unsupported.
Header: Declared in mmsystem.h.
MCI Overview, MCI Commands, MCI_DGV_STEP_PARMS, MCI_GENERIC_PARMS, MCI_GETDEVCAPS, MCI_VCR_STEP_PARMS, MCI_VD_STEP_PARMS