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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!)

孙鑫VC++教学课程lesson14：网络的相关知识，网络程序的编写，Socket是连接应用程序与网络驱动程序的桥梁，Socket在应用程序中创建，通过bind与驱动程序建立关系。此后，应用程序送给Socket的数据，由Socket交给驱动程序向网络上发送出去。计算机从网络上收到与该Socket绑定的IP+Port相关的数据后，由驱动程序交给Socket，应用程序便可从该Socket中提取接收到的数据。网络应用程序就是这样通过socket进行数据的发送与接收的。TCP与UDP的工作原理与编写过程，如何在程序中链接库文件。一个字符界面的聊天程序。(Sun Xin VC++ tutorial lesson14: the knowledge of the network, network program, Socket is connected applications and network drivers bridges, Socket application to create, build relationships bind driver. Thereafter, the data of the application to give socket, by the Socket handed driver and sent out on the network. After binding with the Socket IP+Port related data is received by the computer from the network, by the driver to the socket, the application can extract the data received from the Socket. Network application is sending and receiving data through the socket. TCP and UDP works and the writing process, how to link library files in the program. A character interface chat program.)

开源的防火墙代码，基于Tdi和NDIS双层实现(Open source firewall code, based on double NDIS tdi and implementation)

记录鼠标的操作，让您操作一次之后，即可操作任意次数！(Record mouse operation, allows you to manipulate time after, you can operate any number of times!)

VC++6.0编写的CAD dxf文件直接转换为数控加工G代码程序。直接调入DXF文件，生成可用于数控加工的G代码。(Written by VC++6.0 CAD DXF files directly into G code program of CNC machining. Direct load DXF file generation, can be used for NC machining G code. )

做程序时，写界面的必须,有源码代，有注释。针对初、中、高级专业软件的界面。(Do program, must write interface, source code generation, with comments. In view of the early, middle and senior professional software interface.)

局域网共享扫描MFC多线程编写 具有端口扫描 共享扫描 IP扫描 mac扫描等功能(MFC multi-threaded scanning local area network to share the preparation of a port scan scanner share scanner functions such as IP scanning mac)

说明：  tMCimg，惊醒蒙特卡洛光场分布的模拟，得到生物组织中的光场仿真，(tMCimg Monte Carlo)

与时间服务器的时间同步程序，根据时间协议返回的时间设置系统时间(keep the time with time servre SetTimeFromTP)

在Window标题栏写title的两种方法的VC原代码( Writes title in the Window title block two methods VC original codes )