Used in mixerGetDevCaps (winmm)

   [DllImport("winmm.dll", EntryPoint="mixerGetDevCaps", SetLastError=true)]

   private static extern uint MixerGetDevCaps(int mixerId, ref MixerCaps mixerCaps, int mixerCapsSize);

   <DllImport("winmm.dll", EntryPoint:="mixerGetDevCaps", SetLastError:=True)> _

   Private Shared Function MixerGetDevCaps(ByVal mixerId As Integer, ByRef mixerCaps As MixerCaps, ByVal mixerCapsSize As Integer) As UInteger

       [DllImport("winmm.dll", EntryPoint = "mixerGetDevCaps", SetLastError = true)]

       private static extern uint MixerGetDevCaps(int mixerId, ref MixerCaps mixerCaps, int mixerCapsSize);

           uint result = MixerGetDevCaps(mixerId, ref caps, Marshal.SizeOf(caps));