MCI_SETTUNER

The MCI_SETTUNER command sets the current channel on the tuner. VCR devices recognize this command.

MCIERROR mciSendCommand(MCIDEVICEID wDeviceID, MCI_SETTUNER, 
    DWORD dwFlags, (DWORD) (LPMCI_GENERIC_PARMS) lpSetTuner);
 

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.
lpSetTuner
Address of an MCI_VCR_SETTUNER_PARMS structure.

Return Values

Returns zero if successful or an error otherwise.

Remarks

The following additional flags apply to VCR devices:

MCI_VCR_SETTUNER_CHANNEL
The dwChannel member of the structure identified by lpSetTuner contains the new channel number.
MCI_VCR_SETTUNER_CHANNEL_DOWN
Decrements the tuner channel.
MCI_VCR_SETTUNER_CHANNEL_SEEK_DOWN
Searches for a valid channel in the reverse direction.
MCI_VCR_SETTUNER_CHANNEL_SEEK_UP
Searches for a valid channel in the forward direction.
MCI_VCR_SETTUNER_CHANNEL_UP
Increments the tuner channel.
MCI_VCR_SETTUNER_NUMBER
The dwNumber member of the structure identified by lpSetTuner specifies which logical tuner to affect with this command.

QuickInfo

  Windows NT: Requires version 3.1 or later.
  Windows: Requires Windows 95 or later.
  Windows CE: Unsupported.
  Header: Declared in mmsystem.h.

See Also

MCI Overview, MCI Commands, MCI_VCR_SETTUNER_PARMS