a keyboard can display information in small programs, with vb do.

演示midi录音和防音源码-demonstration MIDI recording and sound-source

旋转上使用 visual basic 6，使用 visual basic 6，在图片框中使用 visual basic 6，旋转文本的图片框上的旋转文本的图片框中的文本

简单的用C#的serial port控件实现的串口通讯的源码例子，可以使用VS2008打开，实现了串口发送数据，同时，接收是通过异步方式实现，通过委托与串口接收到数据事件的绑定，能够自动处理接收的数据。对初学者有所帮助。

windows下用MFC开发的录音程序。 使用PCM编码格式，位数、采样频率等参数可调 可实时显示波形，实时写入wav文件和MP3文件。 等等

数据库连接测试程序带加密功能,主要用于测试于sql数据库的连接-Database connection test program with encryption capabilities, mainly for testing in the sql database connection

本程序允许用户导入一个指定的xml文档 然后通过一个文本框，查找xml-This demo allows the user to load and parse a specified XML document. Then, through a text box the user can navigate and manipulate the tree. This is both a useful example of how to walk the XML tree using the XML Object Model and a useful tool for learning the XML Object Model.

C#语言 VSTO C#语言编写的word插件，使用VSTO技术-C# language VSTO C# plug-word languages, use the VSTO technology

里外有很多C＋＋实例，并附有源码，都是在VC6.0上面调试过的，可以直接使用！-Inside and outside has a lot of C examples, with source code are in the VC6.0 debugger over the top and can be used directly!

图形绘画中的光线追踪-graphic painting of Ray Tracing

中断服务程序的关键是：1.保护进入中断时的状态，并在退出中断之前恢复进入时的状态。2.必须在中断程序中设定是否允许中断重入，即设置EX0位。 本例中使用了INT0中断，一般中断程序进入时应保护PSW，ACC以及中断程序使用但非其专用的寄存器。本例的INT0程序保护了PSW，ACC，2等三个寄存器并且在退出前恢复了这三个寄存器。另外中断程序中涉及到关键数据的设置时应关中断，即设置时不允许重入。本例中没有涉及这种情况。 实验开始时K8应在H（高电平）端，要产生中断时先拨向L（低电平）端再拨回H端。 -Interrupt service s key is: 1. the protection enters when the interrupt condition, and when the withdrawal interrupt before regains enters the condition. 2. must in the interrupt routine establish whether to permit the interrupt re-entry, namely establishes the EX0 position. in this example has used the INT0 interrupt, generally the interrupt routine enters when should protect PSW, ACC as well as the interrupt routine use but non-its special-purpose register. This example INT0 program protection PSW, ACC,2 and so on three registers, and restored these three registers before the withdrawal. Moreover in the interrupt routine involves to when the essential data establishment should close the interrupt, namely when establishment does