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CoreAudioDevices.CapturePartChannelVolumeSet method |
  
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CoreAudioDevices.CapturePartChannelVolumeSet method |
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Remarks
Sets the channel's level of a part embedded inside the given capture audio endpoint device. The current level can be obtained through the CoreAudioDevices.CapturePartChannelVolumeGet method.
This method is only intended for usage with Windows Vista and later versions: further information about management of audio devices in Windows Vista and later versions can be found inside the How to access settings of audio devices in Windows Vista and later versions tutorial.
For further details about methods related to the management of core audio devices refer to the CoreAudioDevices COM object.
Syntax
[Visual Basic] control.CoreAudioDevices.CapturePartChannelVolumeSet ( nDeviceIndex as Integer, nPartId as enumCoreAudioCaptureParts, nChannel as Integer, fLevelIndB as Single ) as enumErrorCodes |
[C++] short control.CoreAudioDevices.CapturePartChannelVolumeSet ( short nDeviceIndex, short nPartId, short nChannel, float fLevelIndB ); |
Parameter |
Description |
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nDeviceIndex |
Zero-based index of the capture audio endpoint device. The total number of capture audio endpoint devices can be obtained through the CoreAudioDevices.CountGet method passing DEVICE_DATA_FLOW_CAPTURE to the nDataFlow parameter. |
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nPartId |
Identifier of the capture part. Supported values are the following:
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nChannel |
Zero-based index of the channel. The total number of channels can be obtained through the CoreAudioDevices.CapturePartChannelCountGet method. If this parameter is set to -1 the volume level is applied to all of the available channels. |
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fLevelIndB |
The new level, expressed in dB, of the Microphone Boost setting. The range of acceptable values to apply can be determined by checking the fRangeMinIndB and fRangeMaxIndB parameters of the CoreAudioDevices.MicBoostChannelLevelGet method. |
Return value
Value |
Meaning |
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Negative value |
An error occurred, check the LastError property value in order to get the error code |
enumErrorCodes.ERR_NOERROR (0) |
The method call was successful |
