MCI_INDEX command
The MCI_INDEX command turns the on-screen display on or off. VCR devices recognize this command.
To send this command, call the mciSendCommand function with the following parameters.
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
-
Pointer to an MCI_GENERIC_PARMS structure. (Devices with extended command sets might replace this structure with a device-specific structure.)
Return Value
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.
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client |
Windows 2000 Professional [desktop apps only] |
| Minimum supported server |
Windows 2000 Server [desktop apps only] |
| Header |
|