不是说了吗
-First, I've added joystick support through SDL. That was easy.
-Next, I've added support for SDL sound core under Win32. That was easy too, the SDL sound core was here already.
-Added Vertical resize option. It was harder, I spent some time to add this. When activated, the window can be resized only vertically, the screens keep their size and the gap between the screens will be filled with your favourite colour (approximative). This allows users to set a gap depending on the game to get better gameplay.