IltmfTVTuner::get_VideoSubChannel

Summary

Retrieves the current video sub-channel.

Syntax

#include "ltmf.h"

Platform Syntax
C HRESULT IltmfTVTuner_get_VideoSubChannel(pTV, pVal)
C++ HRESULT get_VideoSubChannel(pVal)

Parameters

IltmfTVTuner *pTV

Pointer to an IltmfTVTuner interface.

long *pVal

Pointer to a variable to be updated with the current video sub-channel. Possible values are:

Value Meaning
ltmfTUNER_SUBCHAN_DEFAULT The default subchannel.
ltmfTUNER_SUBCHAN_NO_TUNE Subchannels not supported.
Any other value The current video sub-channel.

This parameter is valid only for satellite broadcasts.

Returns

Value Meaning
S_OK The function was successful.
<> S_OK An error occurred. Refer to the Error Codes or the HRESULT error codes in the MediaFoundation documentation.

Comments

For a list of frequencies for channels, refer to the Microsoft Documentation International Analog TV Tuning at https://docs.microsoft.com/en-us/windows/win32/directshow/international-analog-tv-tuning.

For more detailed information, refer to the Microsoft Documentation for IAMTVTuner::get_Channel.

Required DLLs and Libraries

Platforms

Win32, x64.

See Also

Functions

Topics

Example

For a C++ example, refer to IltmfTVTuner::get_VideoSubChannel Example for C++.

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© 1991-2022 LEAD Technologies, Inc. All Rights Reserved.