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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

Minimum supported client

Windows 2000 Professional [desktop apps only]

Minimum supported server

Windows 2000 Server [desktop apps only]

Header

Mmsystem.h (include Windows.h)

See also

MCI
MCI Commands

 

 

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