具体控件包括：条码编码控件、条码解码控件、图像压缩控件、串口通讯控件等。

Specific controls include: barcode coding controls, barcode decoding controls, image compression control, serial communication controls.

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本文详述了使用VB和C51实现PC机和单片机串行通信的开发方法，并简要地介绍了VB通讯控件及其使用方法，给出了调试程序。

The paper states the method which is used to develop serial communication for MCU and PC with programming tools VB and C51.

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P2P视频即时通讯控件ocx（VC6源码），DirectShow捕获视频，格式176x144，视频编解码采用H264协议，平均传送速率8K/S，资源还包括一个VB测试程序。

P2P video instant messaging control ocx (VC6 source), DirectShow video capture, format 176x144, video codec H264 protocol used, the average transfer rate 8K/S, resources include a VB test program.

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