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用C语言实现禁用网卡的代码

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  {

  SP_DEVINFO_DATA DeviceInfoData = {sizeof(SP_DEVINFO_DATA)};

  LPOLESTR guid;

  char devName[128];

  char instanceId[128];

  for (int i=0;SetupDiEnumDeviceInfo(hDevInfo,i,&DeviceInfoData);i++)

  {

  StringFromCLSID(DeviceInfoData.ClassGuid,&guid);

  SetupDiClassNameFromGuid(&DeviceInfoData.ClassGuid,devName,128,NULL);

  if(!strcmp(devName,"Net"))

  {

  SetupDiGetDeviceInstanceId(hDevInfo,&DeviceInfoData,instanceId,128,NULL);

  if(!strncmp(instanceId,"PCI",3))

  {

  wprintf(L"%s\n",guid);

  printf("%s\n",devName);

  printf("%s\n",instanceId);

  SP_PROPCHANGE_PARAMS params = {sizeof(SP_CLASSINSTALL_HEADER )};

  params.ClassInstallHeader.InstallFunction = DIF_PROPERTYCHANGE;

  params.Scope = DICS_FLAG_CONFIGSPECIFIC;

  params.StateChange = DICS_DISABLE;

  params.HwProfile = 0;

  SetupDiSetClassInstallParams(hDevInfo, &DeviceInfoData, (SP_CLASSINSTALL_HEADER*)¶ms, sizeof(SP_PROPCHANGE_PARAMS));

  SetupDiChangeState(hDevInfo, &DeviceInfoData);

  }

  }

  CoTaskMemFree(guid);

  }

  }

  int main(int argc, char* argv[])

  {

  HDEVINFO hDevInfo = INVALID_HANDLE_VALUE;

  hDevInfo = SetupDiGetClassDevs(NULL,NULL,NULL, DIGCF_PRESENT | DIGCF_ALLCLASSES);

  if(INVALID_HANDLE_VALUE == hDevInfo)

  return GetLastError();

  EnumDevices(hDevInfo);

  SetupDiDestroyDeviceInfoList(hDevInfo);

  return 0;

  }

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