| Microsoft DirectX 8.1 (C++) |
The put_PhysicalChannel method sets the physical channel.
Syntax
HRESULT put_PhysicalChannel(
long PhysicalChannel
);
Parameters
PhysicalChannel
[in] Variable of type long that specifies the physical channel.
Return Values
Returns S_OK if successful. If the method fails, error information can be retrieved using the standard COM IErrorInfo interface.
Remarks
This is a required property. A tuner cannot locate an ATSC transmission source without it.
See Also
pTSID
[out] Pointer to a variable of type long that receives the transport stream ID.
Return Values
Returns S_OK if successful. If the method fails, error information can be retrieved using the standard COM IErrorInfo interface.
Remarks
This property is not required for tuning. It will be set by the BDA Transport Information Filter (TIF) when the signal is acquired. This property is not used by the application but may be used by one or more of the receiver filters. For example, a TIF may use this to determine whether the transport stream has changed from what was originally tuned and generate events that cause re-acquisition of the requested program.
See Also