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testUSBPrint
- 通过Windows系统的API函数SetupDi族函数,获得USB针式打印机的句柄,然后在通过CreateFile,WriteFile函数向该打印机发送指令,以达到控制打印的目的。-SetupDi family of functions through Windows API function system, get a handle USB dot matrix printer, and then send commands to the printer through CreateFile,