超市管理系统源码(含数据库)-winform

C# 遍历所有 窗体句柄 源码

VC++ 禁止运行程序的多个实例，程序根据主窗口类名和主窗口名判断是否已经有实例存在，如果存在就将其激活，并显示出来，如果是最小化的就还原窗口；如果有实例存在，则返回False并退出。 (VC++ prohibits running the program multiple instances of the program under the main window class name and the main window name to determine whether there are examples exist, if it will activate and show, if it is minimized to restore the window if examples exist, Returns False and exit.)

C++实现的读写注册表的功能，可以直接读取某个键的值，设定某个键的值和删除某个键的值，非常方便。(Read and write C++ implementation of the registry function, you can directly read the value of a key, set the value of a key to delete a key value, very convenient.)

列举制定的目录中被打开的文件，和打开这些文件的进程的PID，命令：lof 驱动文件 目标文件夹。由于驱动的限制，该程序仅适用Windows 2000/XP。(Listed in the directory has been developed to open the file, and open the files of the process PID, the command: lof driver file destination folder. As the driving restrictions, the program applies only to Windows 2000/XP.)

这个是演示采用UDP协议进行P2P打洞对话原理的演示程序,参考的资料是:1)P2P 之 UDP穿透NAT的原理与实现（附源代码）--http://www.cnpaf.net/Class/hack/0512182034513804825.htm2)王艳平

用户界面编程DialogBar的试验,好案例()

多模板匹配

图形常见变换如维纳,中值滤波 复原等处理要求图像为256色(Common graphic transformation such as weiner, median filtering recovery processing requirements such as image for 256 colors)

vc 编辑注册表信息Regedit的程序源码,值得一看！(vc edit the registry Regedit program source code, worth a visit!)

说明：  U盘过滤驱动系统源代码主要是用DDK来实现的(U disk drive system source code filter is mainly used to realize the DDK)