MCI_INDEX

The MCI_INDEX command turns the on-screen display on or off. VCR devices recognize this command.

MCIERROR mciSendCommand(MCIDEVICEID wDeviceID, MCI_INDEX,
DWORD dwFlags, (DWORD) (LPMCI_GENERIC_PARMS) lpIndex);

Parameters
wDeviceID
Device identifier of the MCI device that is to receive the command message.

dwFlags
MCI_NOTIFY, MCI_WAIT, or MCI_TEST. For information about these flags, see The Wait, Notify, and Test Flags.

lpIndex

Address of an MCI_GENERIC_PARMS structure. (Devices with extended command sets might replace this structure with a device-specific structure.)

Return Values
Returns zero if successful or an error otherwise.

Remarks
The information presented in the on-screen display is controlled by the MCI_VCR_SET_INDEX flag in the MCI_SET command.

The following additional flags apply to VCR devices:

MCI_SET_OFF

Turns on-screen display off.

MCI_SET_ON

Turns on-screen display on.