/// <summary>
/// Destroys the window with the given handle and class atom and unregisters its window class
/// </summary>
/// <param name="args">A DestrowWindowParams instance</param>
internal static object DestroyWindow(object args)
{
SecurityCriticalDataClass <IntPtr> handle = ((DestroyWindowArgs)args).Handle;
ushort classAtom = ((DestroyWindowArgs)args).ClassAtom;
Invariant.Assert(handle != null && handle.Value != IntPtr.Zero,
"Attempting to destroy an invalid hwnd");
UnsafeNativeMethods.DestroyWindow(new HandleRef(null, handle.Value));
UnregisterClass((object)classAtom);
return(null);
}