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获取设备管理器的信息 - VC›评论

• 1 bf : // 获取设备实例ID
  if (SetupDiGetDeviceInstanceId(hDevInfo, &DeviceInfoData, DeviceInstanceId, DeviceInstanceIdSize, NULL))
  {
  // 从设备实例ID中提取VID和PID
  TCHAR* pVidIndex = _tcsstr(DeviceInstanceId, TEXT("VID_"));
  if (pVidIndex == NULL) continue;
  
  TCHAR* pPidIndex = _tcsstr(pVidIndex + 4, TEXT("PID_"));
  if (pPidIndex == NULL) continue;
  
  USHORT VendorID = _tcstoul(pVidIndex + 4, NULL, 16);
  USHORT ProductID = _tcstoul(pPidIndex + 4, NULL, 16);
  
  // 剔除重复的VID和PID
  if (!WDK_isExistVidPid( VendorID, ProductID, pVidPid, iTotal ))
  {
  pVidPid[iTotal].VendorID = VendorID;
  pVidPid[iTotal].ProductID = ProductID;
  if (++iTotal >= iCapacity) break;
  }
  } 2017/7/5 19:29 回复

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