[DllImport("user32.dll")]
static extern bool TrackPopupMenuEx(IntPtr hmenu, uint fuFlags, int x, int y,
IntPtr hwnd, IntPtr lptpm);
VB Signature:
<DllImport("User32.Dll")> _
Shared Function TrackPopupMenuEx( _
ByVal hmenu As IntPtr, ByVal fuFlags As UInt32, _
ByVal x As Integer, ByVal y As Integer, _
ByVal hwnd As IntPtr, ByVal lptpm As Integer) As Boolean
End Function