IltmmTVTuner::SetChannel

#include "ltmm.h"

C Syntax

HRESULT IltmmTVTuner_SetChannel(pVT, Channel, VideoSubChannel, AudioSubChannel)

C++ Syntax

HRESULT SetChannel(Channel, VideoSubChannel, AudioSubChannel)

 

IltmmTVTuner *pTV;

/* pointer to an interface */

long Channel;

/* channel */

long VideoSubChannel;

/* video sub-channel */

long AudioSubChannel;

/* audio sub-channel */

Sets the TV channel.

Parameter

Description

pTV

Pointer to an IltmmTVTuner interface.

Channel

Value that represents the TV channel to set.

VideoSubChannel

Value that represents a predefined video sub-channel. Possible values are:

 

Value

Meaning

 

ltmmTUNER_SUBCHAN_DEFAULT

The default subchannel.

 

ltmmTUNER_SUBCHAN_NO_TUNE

No tuning.

 

This parameter is valid only for satellite broadcasts.

AudioSubChannel

Value that represents a predefined audio sub-channel. Possible values are:

 

Value

Meaning

 

ltmmTUNER_SUBCHAN_DEFAULT

The default subchannel.

 

ltmmTUNER_SUBCHAN_NO_TUNE

Subhannels not supported.

 

This parameter is valid only for satellite broadcasts.

Returns

S_OK

The function was successful.

<> S_OK

An error occurred. Refer to the Error Codes or the HRESULT error codes in the DirectShow documentation.

Comments

This function converts the TV channel to a TV frequency. For a list of frequencies for channels, see the Microsoft Documentation International Analog TV Tuning at http://msdn.microsoft.com/archive/default.asp?url=/library/en-us/directshow/htm/internationalanalogtvtuning.asp.

For more detailed information, refer to Microsoft documentation for IAMTVTuner::put_Channel at http://msdn.microsoft.com/archive/default.asp?url=/library/en-us/directshow/htm/iamtunerput_channel.asp.

Required DLLs and Libraries

LTMM

For a listing of the exact DLLs and Libraries needed, based on the toolkit version, refer to Files To Be Included With Your Application.

See Also

Elements:

IltmmTVTuner::get_Channel, IltmmTVTuner::get_VideoSubChannel, IltmmTVTuner::get_AudioSubChannel, IltmmTVTuner::get_ChannelMax, IltmmTVTuner::get_ChannelMin, IltmmTVTuner::get_VideoFrequency, IltmmTVTuner::get_AudioFrequency

Topics:

Multimedia Function Group

Example

For a C example, refer to IltmmTVTuner::SetChannel Example for C.

For a C++ example, refer to IltmmTVTuner::SetChannel Example for C++.