VB通过COM串口读取条形码设备，程序用到了MsComm.ocx控件，如果对此控件没有掌握用法的朋友，可以参考一下这个实例。-COM serial port through VB to read the bar code equipment, procedures used in the MsComm.ocx control, if this control does not have the use of a friend, you can refer to this example.

vb开发实现通过COM口通讯对外围设备的驱动-vb development to achieve through the COM port communications driver for peripherals

COM端口监听搜索程序VB源代码,vb语言编写-COM port to monitor the search process VB source code

COM端口监听搜索程序VB源代码，查找本机可用的COM端口，并显示出端口信息，很实用的程序。-COM port to monitor the search process VB source code available to find the local COM port, and port information is shown, it is of practical procedures.