1)Windows

1. 更新设备网络SDK时，SDK开发包【库文件】里的HCNetSDK.dll、HCCore.dll、HCNetSDKCom文件夹、PlayCtrl.dll、SuperRender.dll、AudioRender.dll、ssleay32.dll、libeay32.dll等文件均要加载到程序里面，【HCNetSDKCom文件夹】(包含里面的功能组件dll库文件)需要和HCNetSDK.dll、HCCore.dll一起加载，放在同一个目录下，且HCNetSDKCom文件夹名不能修改。

2. 如果自行开发软件不能正常实现相应功能，而且程序没有指定加载的dll库路径，请在程序运行的情况下尝试删除HCNetSDK.dll。如果可以删除，说明程序可能调用到系统盘Windows->System32目录下的dll文件，建议删除或者更新该目录下的相关dll文件；如果不能删除，dll文件右键选择属性确认SDK库版本。

3. 如按上述步骤操作后还是不能实现相应功能，请根据NET_DVR_GetLastError返回的错误号判断原因。

2)Linux

编译指令

g++ main.cpp -I ../incCn -L ./ -L ./HCNetSDKCom -lhcnetsdk -lHCCore -lssl -lcrypto -lHCAlarm -lHCDisplay -lHCIndustry -lHCPreview -lStreamTransClient -lanalyzedata -lHCCoreDevCfg -lHCGeneralCfgMgr -lHCPlayBack -lHCVoiceTalk -lSystemTransform -liconv2 -lz  -Wl,-rpath=./

代码

#include

using namespace std;

#include "HCNetSDK.h"

int main()

{

NET_DVR_Init();

NET_DVR_USER_LOGIN_INFO struLoginInfo;

NET_DVR_DEVICEINFO_V40  struDeviceInfo;

strncpy(struLoginInfo.sDeviceAddress, "192.168.28.130", strlen("192.168.28.130") + 1);

strncpy(struLoginInfo.sUserName, "admin", strlen("admin") + 1);

strncpy(struLoginInfo.sPassword, "admin888", strlen("admin888") + 1);

struLoginInfo.bUseAsynLogin = 0;

struLoginInfo.byUseTransport = 0;

struLoginInfo.wPort = 8000;

LONG lHandle = NET_DVR_Login_V40(&struLoginInfo, &struDeviceInfo);

if (lHandle < 0)

{

std::cout << NET_DVR_GetErrorMsg() << std::endl;

return -1;

}

std::cout << lHandle << std::endl;

NET_DVR_SetSDKInitCfg(NET_SDK_INIT_CFG_SDK_PATH, "./");

NET_DVR_STD_CONFIG std_config = { 0 };

DWORD channel = struDeviceInfo.struDeviceV30.byStartChan;//正确

//long  channel = struDeviceInfo.struDeviceV30.byStartChan;//错误

NET_DVR_GIS_INFO gis_info_tmp = { 0 };

std_config.lpStatusBuffer = NULL;

std_config.dwStatusSize = 0;

std_config.lpOutBuffer = &gis_info_tmp;

std_config.dwOutSize = sizeof(NET_DVR_GIS_INFO);

std_config.byDataType = 0;

std_config.lpCondBuffer = &channel;

std_config.dwCondSize = sizeof(channel);

if (!NET_DVR_GetSTDConfig(lHandle, NET_DVR_GET_GISINFO, &std_config))

{

std::cout << "failed" << std::endl;

std::cout << NET_DVR_GetErrorMsg() << std::endl;

return -1;

}

std::cout << "P:" << gis_info_tmp.struPtzPos.fPanPos << std::endl;

std::cout << "T:" << gis_info_tmp.struPtzPos.fTiltPos << std::endl;

std::cout << "Z:" << gis_info_tmp.struPtzPos.fZoomPos << std::endl;

std::cout << "H:" << gis_info_tmp.fHorizontalValue << std::endl;

std::cout << "V:" << gis_info_tmp.fVerticalValue << std::endl;

return 0;

}

查询失败，打印日志Parameter error. Input or output parameter in the SDK API is NULL，原因是DWORD类型定义是四个字节,long在Linux下是八个字节，所以类型不匹配导致的