1.根据名字打开相机 

int CBasicDemoDlg::OpenDevice(void)
{int nDeviceNum = -1;char* ccdName = { "相机" };CString strMsg;//char* ccdName = { "CCDName" };//设置相机名字// ch:清除设备列表框中的信息 | en:Clear Device List Informationm_ctrlDeviceCombo.ResetContent();// ch:初始化设备信息列表 | en:Device Information List Initializationmemset(&m_stDevList, 0, sizeof(MV_CC_DEVICE_INFO_LIST));// ch:枚举子网内所有设备 | en:Enumerate all devices within subnetint nRet = CMyCamera::EnumDevices(&m_stDevList);// ch:将值加入到信息列表框中并显示出来 | en:Add value to the information list box and displayunsigned int i;int nIp1, nIp2, nIp3, nIp4;for (i = 0; i < m_stDevList.nDeviceNum; i++){MV_CC_DEVICE_INFO* pDeviceInfo = m_stDevList.pDeviceInfo[i];//m_ctrlDeviceCombo.AddString(strMsg);//不用显示if (m_stDevList.pDeviceInfo[i]->nTLayerType == MV_GIGE_DEVICE){if (strcmp((const char*)m_stDevList.pDeviceInfo[i]->SpecialInfo.stGigEInfo.chUserDefinedName, ccdName) == 0){nDeviceNum = i;printf("Gige_devicen_nDeviceNum %d\n", nDeviceNum);}}else if (m_stDevList.pDeviceInfo[i]->nTLayerType == MV_USB_DEVICE){if (strcmp((const char*)m_stDevList.pDeviceInfo[i]->SpecialInfo.stUsb3VInfo.chUserDefinedName, ccdName) == 0){nDeviceNum = i;printf("USB_devicen_DeviceNum %d\n", nDeviceNum);}}continue;}if (0 == m_stDevList.nDeviceNum){ShowErrorMsg(TEXT("No device"), 0);return STATUS_ERROR;}// ch:由设备信息创建设备实例 | en:Device instance created by device informationif (NULL == m_stDevList.pDeviceInfo[nDeviceNum]){ShowErrorMsg(TEXT("Device does not exist"), 0);return STATUS_ERROR;}if (NULL != m_pcMyCamera){return STATUS_ERROR;}m_pcMyCamera = new CMyCamera;if (NULL == m_pcMyCamera){return STATUS_ERROR;}//int nRet = m_pcMyCamera->Open(m_stDevList.pDeviceInfo[nDeviceNum]);nRet = m_pcMyCamera->Open(m_stDevList.pDeviceInfo[nDeviceNum]);if (MV_OK != nRet){delete m_pcMyCamera;m_pcMyCamera = NULL;return nRet;}// ch:探测网络最佳包大小(只对GigE相机有效) | en:Detection network optimal package size(It only works for the GigE camera)if (m_stDevList.pDeviceInfo[nDeviceNum]->nTLayerType == MV_GIGE_DEVICE){int nPacketSize = m_pcMyCamera->GetOptimalPacketSize();if (nPacketSize > 0){nRet = m_pcMyCamera->SetIntValue("GevSCPSPacketSize", nPacketSize);if (nRet != MV_OK){ShowErrorMsg(TEXT("Warning: Set Packet Size fail!"), nRet);}}else{ShowErrorMsg(TEXT("Warning: Get Packet Size fail!"), nPacketSize);}}m_bOpenDevice = TRUE;return MV_OK;}

2.根据ip地址打开相机

//根据网卡和相机ip地址直接连接相机//指定网卡ip，相机ip打开相机，需注意，不要写错ip地址，否则会报错206问题int nRet = 0;int nDeviceNum = -1;MV_CC_DEVICE_INFO stDevInfo = { 0 };MV_GIGE_DEVICE_INFO stGigEDev = { 0 };//stGigEDev.nNetExport = 0xa9fe7e79;//网卡ip地址 169.254.126.121    在我收藏的网址https://www.infobyip.com/ip-10.64.57.91.html里HEX可以找到转换stGigEDev.nCurrentIp = 0xa9fea281;//相机ip地址 169.254.162.129stDevInfo.nTLayerType = MV_GIGE_DEVICE;// ch:仅支持GigE相机 | en:Only support GigE camerastDevInfo.SpecialInfo.stGigEInfo = stGigEDev;nRet = MV_CC_CreateHandle(&handle, &stDevInfo);if (MV_OK != nRet){printf("MV_CC_CreateHandle fail! nRet [%x]\n", nRet);return -1;}nRet = MV_CC_GetDeviceInfo(handle, &stDevInfo);//补全设备信息if (nRet != MV_OK){MV_CC_DestroyHandle(handle);handle = NULL;return false;}nRet = MV_CC_OpenDevice(handle);if (MV_OK != nRet){printf("MV_CC_OpenDevice fail! nRet %x\n", nRet);return nRet;}

3.参考文章

工业相机如何调整SDK枚举顺序或者打开顺序