一个自动获取光驱或磁盘号的原码

这是从classicladder分离出来的PLC模拟程序，对于从事PLC开发有很重要的参考价值！-Vc++ For Plc SourceCode

分时轮转调度算法是系统把所有就绪进程按先后次序排队，处理机总是优先分配给就绪队列中的第一个就绪进程，并分配它一个固定的时间片（如100毫秒）。当该运行进程用完规定的时间片时，被迫释放处理机给下一个处于就绪队列中的第一个进程，分给这个进程相同的时间片，每个运行完时间片的进程，当未遇到任何阻塞时，就回到就绪队列的尾部，并等待下次转到它时再投入运行。于是，只要是处于就绪队列中的进程，按此种算法迟早总可以分得处理机投入运行。模拟实现这一组进程的工作过程。

检测CPU的运行状态- Examines CPU the running status

扩展EDIT控件功能,弹出自己的右键菜单并响应事件-EDIT extended control functions, pop-up their own menu and respond to incidents

不需要使用任何的系统API就可以得到硬盘序列号的VB程序。-The system does not require the use of any API can be the hard disk serial number of the VB program.

This component has the same functionality of the default Timer component, but it provides a higher resolution, until a maximum of 1 milisecond.-This component has the same functionality of the default Timer component, but it provides a higher resolution, until a maximum of 1 milisecond.

学习简单的字符串加密技术； 演示用wm_copydata进行数据交换； -learn simple string encryption technology; Demo wm_copydata for data exchange;

实现系统托盘功能，不会出现系统异常现象，运行十分稳定。-The realization of the system tray functions, system anomaly does not appear, run very stable.

Change NT password in C

进程调度算法：采用最高优先数优先的调度算法，即把处理机分配给优先数最高的进程。 每个进程由一个进程控制块（PCB）表示。进程控制块可以包含如下信息：进程名、优先数、需要运行的时间、已占用的CPU时间、进程状态等等。 进程的优先数及所需要运行的时间可以事先人为地指定（也可由随机数产生）。 进程的运行时间以时间片为单位进行计算。 每个进程的状态可以是就绪W（Wait），运行R（Run），或完成F（Finish）三种状态之一。 -process Scheduling Algorithm : The highest priority of several priority scheduling algorithm, which is allocated to the processor the highest priority in the process. Every process from a process control block (PCB) said. Process control block may contain the following information : process, and priority number, the need to run time, has taken the CPU time, the process of the state and so on. Several priorities for the process of what needs to run and the time prior to artificially designated (also be random number generator). The process of running time to time-unit calculations. The state of each process can be completed W (Wait), running R (Run), or completion of F (Finish), one of three state.