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(PDEV_BROADCAST_DEVICEINTERFACE)pHDr 代表什么意...

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Datos := PDevBroadcastHdr(Msg.lParam)devType := Datos^.dbch_devicetypeif devType = DBT_DEVTYP_DEVICEINTERFACE theegin // USB DeviceData := PDev...

DevBroadcastDeviceInterface.dbcc_size = sizeof(DevBroadcastDeviceInterface); Dev...//DisplayData("Device change detected."); PDEV_BROADCAST_HDR lpdb = (P...

DEV_BROADCAST_DEVICEINTERFACE dev_broadcast_deviceinterface = {0}; dev_broadcast_deviceinterface.dbcc_size = sizeof(dev_broadcast_deviceinterface); dev_...

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