The Windows 2000 display driver model (XDDM) requires that a graphics hardware vendor supply a paired display driver and video miniport driver. Both of these drivers for display run in kernel mode.
Note XDDM and VGA drivers will not compile on Windows 8 and later versions.If display hardware is attached to a Windows 8 computer without a driver that is certified to support Windows Display Driver Model (WDDM) 1.2 or later, the system defaults to running the Microsoft Basic Display Driver.
To create XDDM display drivers on Windows 7 and earlier versions of Windows, download and install the Windows 7 WDK (build 7600), open the WDK Help documentation from the Start menu,and follow the recommended steps in the topic,"Roadmap for Developing Drivers for the Windows Vista Display Driver Model."
（实现XDDM显示驱动在Windows 7或者更早的版本。
1. 下载安装Windows 7 WDK（build 7600）
2. 开始菜单打开WDK帮助文档，
3. 搜索"Roadmap for Developing Drivers for the Windows Vista Display Driver Model."
