优秀的密码查看器

利用命名管道技术，在进程间进行通信的例程。希望和大家交流。-use named pipes, in the process of communication between the routines. And we hope that the exchanges.

此为操作系统实验报告： scan,cscan算法模拟磁盘调度 内含：程序流程图 设计思路 主要源码等等。 简介：磁盘是一种高速、大容量、旋转型、可直接存取的存储设备。它作为计算机系统的辅助存储器，担负着繁重的输入输出任务、在多道程序设计系统中，往往同时会有若干个要求访问磁盘的输入输出请求等待处理。系统可采用一种策略，尽可能按最佳次序执行要求访问磁盘的诸输入输出请求。-operating system for this experiment : scan, cscan scheduling algorithm simulation disk containing : flowchart design major source so on. Description : disk is a high-speed, high-capacity, rotating type, direct access storage devices. As computer systems support memory, shoulders the heavy task of input and output, multiple procedures in the system design, while there are often a number of requests to visit disk input and output requests pending.

　一般而言,应用程序中的一个次要线程总是为主线程执行特定的任务,这样,主线程和次要线程间必定有一个信息传递的渠道,也就是主线程和次要线程间要进行通信。这种线程间的通信不但是难以避免的，而且在多线程编程中也是复杂和频繁的，下面将进行说明。-Generally speaking, the application of a secondary thread is always the main thread to perform a specific task, so that main thread and secondary threads must have a channel for the transmission of information, which is the main thread and the secondary thread to communicate between. This inter-thread communication is not only inevitable, but also in multi-threaded programming is complex and frequent, the following description will be carried out.

建立了一个包含四个窗口的多任务仿真程序。第一个窗口必须显示一系列递增的数字，第二个窗口必须显示一系列递增的素数，第三个窗口必须显示斐波那契数列（斐波那契数列0和1从每个数字的第一个开始是前两个和几个-即0、1、1、2、3、5、8等）。图中的三扇窗户立在窗户底部或滚动，或自行清除窗户内的物品。第四个窗口必须显示任意半径的圆，并且该过程必须按Escape键终止。

实现了在windows系统下的进程隐藏，有效的保护了进程的安全性

windows核心编程的代码,没有用MFC,完全采用WIN32和DDK开发,在WIN2000下运行.统计进程的状态和堆栈.-windows core programming code without using MFC, completely WIN32 and DDK Development, running in Windows 2000. Statistical process and the state stack.

program VirtualMemory {$APPTYPE CONSOLE} uses SysUtils, Windows const PageSize = 4096 //定义页面大小 var VmAddress, CommitAddress: Pointer //存放虚拟内存基址 Text: Pchar begin //保留二页虚拟内存 VmAddress := VirtualAlloc(nil, PageSize * 2, MEM_RESERVE, PAGE_READWRITE) if not Assigned(VmAddress) then begin WriteLn( 保留虚拟内存失败! ) ExitProcess(0) end else WriteLn(Format( 保留虚拟内存成功, 基址为:[%8.8x]! , [Longint(VmAddress)])) //提交第二页虚拟内存 CommitAddress := Pointer(Longint(VmAddress) + PageSize) CommitAddress := VirtualAlloc(CommitAddress, PageSize, MEM_COMMIT, PAGE_READWRITE) if not Assigne-program VirtualMemory ($ APPTYPE CONSOLE) uses SysUtils, Windows const PageSize = 4096// definition pages size var VmAddress, CommitAddress : Pointer// virtual memory-based storage site Text : Pchar begin// reservations two virtual memory VmAddress : = VirtualAlloc (nil. PageSize* 2, MEM_RESERVE, PAGE_READWRITE) if not Assigned (VmAddress) then begin WriteLn (reservations virtual memory failure!) ExitProcess (0) end else WriteLn (Format

多线程应用的例子-multi-threaded application examples

线程怎么通信,这里有解释.线程就是操作系统分配给处理器的基本单元.系统为没一个线程分配一个堆栈-threads how communications, explained here. The operating system is threaded processors allocated to the basic unit. No one system to allocate a thread stack

在Dao中使用多线程 -Using multi-thread in DAO