[DllImport ("coredll.dll", EntryPoint="waveOutClose", SetLastError=true)]

public static extern int waveOutClose(IntPtr hwo);

Declare Function waveOutClose Lib "coredll.dll" (TODO) As TODO

public static extern uint waveOutClose(IntPtr hwo);

Declare Auto Function waveOutClose Lib "winmm.dll" (ByVal hwo As IntPtr) As UInteger