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最近总是遇到调音量和选择录音通道方面的程序，我从网上下载了一个音量控制类，但在不同的操作系统有时会出错，我修改了里面的错误，重新封装成dll类，并提供详细的测试程序。没什么技术只是为了方便使用。 不过这个类在某些操作系统上对录音通道选择时还是会出问题，比如明明是选择"Mono"录音通道，可他却选到其他通道了， 我用了DirectX自带的例子程序也不能正确选到想要的录音通道，不知道如何能准确地选择需要的录音通道，若有高手知道请不吝赐教，我的E-Mail:chrys@163.com，多谢！(recent encounter always stressed the volume and channel selection recording of the procedures, I downloaded from the Internet by a volume control category, but in different operating systems sometimes be wrong, I revised the inside of errors, dll encapsulation into categories, and to provide detailed test procedures. No technology is meant to facilitate use. But in the category of some systems of recording channels to choose or will be problems, For example, she choose "Mono" recording channel, but he elected to the other channel, I used the example of DirectX, bringing their procedures for the election not to want to correct audio channel, do not know how to accurately select the desired audio channel, if experts know Help us to assume my E-Mail : chrys@163.com, thank!)

在INI文件中读写数据，VC++精选学习源码，很好的参考资料。(Read and write data in the INI file, select learning VC++ source code, a good reference.)

实现excel上传ACcess 功能 下载excel 希望有能用到的(Implementing Excel Upload ACcess Function)

对VB初学者很有用的例子，可以下载学习，(Very useful for beginners VB example, you can download the study,)

VB人力资源管理系统（Access版源码）,有需要的下吧。(VB (Access version of the source), human resource management system in need of it.)

人工智能中的有关Wumpus世界的源程序 功能非常强大(artificial intelligence of the Wumpus source in the world is very powerful)

Heat lost from a pipe located indoor. Several Excel functions included.

说明：  这是基于VB编程的代码，希望对大家的学习能有所帮助。(This is for all of you.)

在WIN32中，每一个线程都对应着一个消息队列。由于一个线程可以产生数个窗口，所以并不是每个窗 口都对应着一个消息队列。下列几句话应该作为"定理"被记住： "定理" 一 所有产生给某个窗口的消息，都先由创建这个窗口的线程处理； "定理" 二 Windows屏幕上的每一个控件都是一个窗口，有对应的窗口函数。消息的发送通常有两种方式，一是SendMessage，一是PostMessage(In WIN32, each thread corresponds to a message queue. Since a thread can have several windows, so not every window corresponds to a message queue. The following words should be a " theorem" to be remembered: " Theorem" all produce a message to a window, all threads initially create the window treatment " Theorem" Two Windows on the screen is a control for each window, there is the corresponding window function. Messages sent are usually two ways, first, SendMessage, PostMessage first)

Level of Detail 层次渲染，游戏编程 根据远近关系实现进出渲染，减少资源消耗(Level of Detail-level rendering, game programming relations based on distance and out of rendering, reduce resource consumption)