易语言HOOK API。
API HOOK技术是一种用于改变API执行结果的技术，Microsoft 自身也在Windows操作系统里面使用了这个技术，如Windows兼容模式等。 API HOOK 技术并不是计算机病毒专有技术，但是计算机病毒经常使用这个技术来达到隐藏自己的目的。(API HOOK technology is a technology used to change the execution result of API. Microsoft also uses this technology in Windows operation system, such as Windows compatibility mode. API HOOK technology is not a proprietary technology for computer viruses, but computer viruses often use this technology to hide their own purposes.)