UnhookWindowsHookEx

C# Signature:

[DllImport("user32.dll", SetLastError = true)]
static extern bool UnhookWindowsHookEx(IntPtr hhk);

VB.NET Signature:

<DllImport("user32.dll", SetLastError := True)> _
Public Shared Function UnhookWindowsHookEx(ByVal hhk As IntPtr) As Boolean
End Function