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IMMDeviceCollection::GetCount

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IMMDeviceCollection::GetCount

The GetCount method retrieves a count of the devices in the device collection.

HRESULT GetCount(
  UINT  *pcDevices
);

Parameters

pcDevices

[out]  Pointer to a UINT variable into which the method writes the number of devices in the device collection.

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 pcDevices is NULL.

Remarks

For a code example that calls the GetCount method, see Device Properties.

Requirements

Client: Windows Vista

Header: Include Mmdeviceapi.h.

See Also

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