人脸检测，很难得的源代码。

锁住计算机直到输入正确的口令-computer locked until the correct password

枚举windows设备文件，当需要得到设备的时候可以把当前设备枚举出来-Enumeration windows device file, when the equipment needs to be a time when the current device can be enumerated by

改变nt登录密码-nt change login passwords

在 vc 环境 内用 API 实现 球做45 度直线运动,当 球遇到边角的 时候,以45度角度 反弹回去-Vc environment in the ball with a 45-degree API to achieve linear motion, when the ball met the corner, when a 45-degree angle of bounce back

一个精确获取时间的类,利用查询CPU频率的方法.已经被包装在类中，可以方便调用.-a precise time access to the class, using the CPU frequency inquiry method. Has been packing in the category, can easily call.

这个是同步系统时间的一个小程序（VC++），同步更新系统时间。-This is a time synchronization system, a small program (VC++), update the system time synchronization.

文件处理工具，包括文件合并，文件分割，文件复制，-document processing tools, including document merging separate document, document reproduction,

这个例子可对NT或XP下的并口进行直接读写，超方便-This example can be NT or XP parallel port under the direct reading and writing, super-convenient

应用程序动态挂钩，本代码包含一个简单的键盘钩子的做法，简单明料，很快就帮你手把手的做一个键盘钩子文件。主要函数setwindowshookex,callnexthookex-Dynamically linked applications, the code contains a simple keyboard hook approach, simple-ming Liu, quickly help you to do hands-on document of a keyboard hook. The main function setwindowshookex, callnexthookex

一个模拟的文件系统，支持EDDELCDDIRMDRD等命令（含设计文档）-a simulated file system, support ED DEL CD DIR MD RD such orders (including design documentation)