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.
See Also