VB 串口程序描点画图,程序很小，只有几k,有VB6.0的可对源代码重新编译，运行测试图如截图示。源代码里的部分注释说明：选择com1

　　MSComm1.CommPort = 1

　　设置波特率为9.6kpbs，没有奇偶校验，8位数据位，1位结束位

　　MSComm1.Settings = "9600,N,8,1"

　　读取全部的输入缓冲区

　　Case comEvReceive

　　此处的代码可以进行当串口的接受缓冲区里有RThreshold个字符的处理-VB serial tracing point drawing program, the program is very small, only a few k, there VB6.0 can recompile the source code, run the test pattern as shown in screenshot. Part of the source code annotated: Select com1

MSComm1.CommPort = 1

Set the baud rate to 9.6kpbs, no parity, 8 data bits, 1 stop bit

MSComm1.Settings = "9600, N, 8,1"

Read all of the input buffer

Case comEvReceive

The code here can be accepted when the serial buffer has handled RThreshold characters