海康摄像头使用回调模式取得数据。

hc_netsdk_cb_demo.c

#include <stdio.h>
#include <windows.h>
#include "HCNetSDK.h"


void CALLBACK mucbfunc(LONG lRealHandle,DWORD dwDataType,BYTE *pBuffer,DWORD dwBufSize,void *pUser)
{
	printf("IN [%d]\n", dwBufSize);
}


int main(int argc, char** argv)
{
	printf("HELLO,WORLD\n");
	NET_DVR_Init();

	NET_DVR_DEVICEINFO_V30 devInfo;
	LONG lUserID = NET_DVR_Login_V30("183.249.250.166", 8000,"admin", "jr123123", &devInfo);
	printf("login user id: [%d]\n", lUserID);

	//======
	NET_DVR_IPPARACFG_V40 IpAccessCfg;
	memset(&IpAccessCfg,0,sizeof(IpAccessCfg));	
	DWORD  dwReturned;

	bool iRet = NET_DVR_GetDVRConfig(lUserID, NET_DVR_GET_IPPARACFG_V40, 0, &IpAccessCfg, sizeof(NET_DVR_IPPARACFG_V40), &dwReturned);




	//======= 不行就删

	NET_DVR_CLIENTINFO ClientInfo;
	ClientInfo.hPlayWnd     = NULL;
	ClientInfo.lChannel     = 33;
	ClientInfo.lLinkMode    = 0;
	ClientInfo.sMultiCastIP = NULL;

	LONG llRealHandle = NET_DVR_RealPlay_V30(lUserID,&ClientInfo, mucbfunc, NULL,TRUE);
	printf("realplay handle: [%d]\n", llRealHandle);
	if (llRealHandle<0)
	{
		printf("NET_DVR_RealPlay_V30 failed! Error number: %d\n",NET_DVR_GetLastError());
	}

	system("pause");
	return 0;
}