public static extern bool SetWindowSubclass(IntPtr hWnd, SubclassProc pfnSubclass, IntPtr uIdSubclass, IntPtr dwRefData);
internal static extern Boolean SetWindowSubclass(IntPtr hwnd, SubclassProc pfnSubclass, IntPtr uIdSubclass, IntPtr dwRefData);
public static extern bool RemoveWindowSubclass(IntPtr hWnd, SubclassProc pfnSubclass, IntPtr uIdSubclass);