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IAudioEndpointVolume::GetChannelCount method (endpointvolume.h)

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The GetChannelCount method gets a count of the channels in the audio stream that enters or leaves the audio endpoint device.

Syntax

HRESULT GetChannelCount(
  [out] UINT *pnChannelCount
);

Parameters

[out] pnChannelCount

Pointer to a UINT variable into which the method writes the channel count.

Return value

If the method succeeds, it returns S_OK. If it fails, possible return codes include, but are not limited to, the values shown in the following table.

Return code Description
E_POINTER
 Parameter pnChannelCount is NULL.

Requirements

Requirement Value
Minimum supported client Windows Vista [desktop apps | UWP apps]
Minimum supported server Windows Server 2008 [desktop apps | UWP apps]
Target Platform Windows
Header endpointvolume.h

See also

IAudioEndpointVolume Interface