settuner
The settuner
command changes the current tuner or the channel setting of the current tuner.
VCR devices recognize this command.
wsprintf(lpstrCommand, "settuner %s %s
%s", lpszDeviceID, lpszTuner,
lpszFlags);
Parameters
lpszDeviceID
Identifier of
an MCI device. This identifier or alias is assigned when the device is opened.
lpszTuner
One of the
following flags:
|
channel channel |
Sets the
tuner to channel. You might not be able to change the channel while
recording, depending on the VCR. A channel larger than the maximum sets the
tuner to the maximum channel. |
|
channel
seek up |
Seeks the
next channel with a valid signal. Seek up increments the
channel number in its search. Seek down decrements the channel
number in its search. The tuner wraps to channel 1 when the maximum channel
number is exceeded. Similarly, when seeking down, the tuner wraps to the
maximum channel. |
|
channel up |
Increments
or decrements the tuner channel. You might not be able to change the channel
while recording, depending on the VCR. The tuner wraps to channel 1 when the
maximum channel number is exceeded. Similarly, when seeking down, the tuner
wraps to the maximum channel. |
|
number number |
Specifies
the tuner to be affected by the settuner command. If number is
not given, the default value of 1 is assumed. |
lpszFlags
Can be
wait , notify , test , or a combination of these. For more information about
these flags, see The Wait, Notify, and Test Flags4FW.04J.
Return Values
Returns zero
if successful or an error otherwise.