IMMDeviceCollection::GetCount method

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

Syntax

HRESULT GetCount(
  UINT *pcDevices
);

Parameters

pcDevices

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

   
Minimum supported client Windows Vista [desktop apps only]
Minimum supported server Windows Server 2008 [desktop apps only]
Target Platform Windows
Header mmdeviceapi.h

See Also

IMMDeviceCollection Interface