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CoreAudioDevices.CapturePartChannelCountGet method

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Remarks

 

Obtains the number of channels of a part embedded inside the given capture audio endpoint device.

 

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 CoreAudioDevicesMan class.

 

 

Syntax

 

[Visual Basic]

Public Function CapturePartChannelCountGet (

nDeviceIndex as Int16,

nPartId as enumCoreAudioCaptureParts,

ByRef nChannelsCount as Int16

) as enumErrorCodes


 

[C#]

public enumErrorCodes CapturePartChannelCountGet (

Int16 nDeviceIndex,

enumCoreAudioCaptureParts nPartId,

ref Int16 nChannelsCount

);


 

[C++]

public: enumErrorCodes CapturePartChannelCountGet (

Int16 nDeviceIndex,

enumCoreAudioCaptureParts nPartId,

Int16 __gc *nChannelsCount

);


 

Parameter

Description

 

 

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.

nPartId

Identifier of the capture part.

Supported values are the following:

Mnemonic Value

Value

Meaning

CAPTURE_PART_MIC_BOOST

0

Microphone boost.

nChannelsCount

Reference that, on return from the method call, will contain the number of channels of the part. The returned value is 0 if the requested part is unsupported by the capture audio endpoint device.

 

 

Return value

 

Value

Meaning

 

 

Negative value

An error occurred (see the LastError property for further error details)

enumErrorCodes.ERR_NOERROR (0)

The method call was successful.