Wm_close Wm_destroy Wm_quit

What's the difference between those 2?

http://msdn.microsoft.com/library/de...s/wm_close.asp
http://msdn.microsoft.com/library/de...wm_destroy.asp
http://msdn.microsoft.com/library/de...es/wm_quit.asp

Most programs use this code snippet:

Code:

	case WM_DESTROY:
		DeleteTrayIcon();
		PostQuitMessage (0);
		break;

So, exiting the program is as easy as DestroyWindow(hwnd);