static extern uint waveInClose(IntPtr hwi);

Shared Function waveInClose(<MarshalAs(UnmanagedType.I4)> ByVal hwi As Integer) As MMRESULT

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

public static extern int waveInClose(IntPtr hDev);

Shared Function waveInClose(ByVal hDev As IntPtr) As Integer