海康HcNET看回放的通道问题

64路以及以下路数的NVR的IP通道通道号从33开始，64路及以上路数的NVR的IP通道通道号从1开始

所以若您的通道数小于64路，通道号传入的参数为：32+第几通道号

#include <stdio.h>
#include <iostream>
#include "Windows.h"
#include "HCNetSDK.h"
using namespace std;
typedef HWND(WINAPI* PROCGETCONSOLEWINDOW)();
void main() {
    //---------------------------------------
    // 初始化
    NET_DVR_Init();
    //设置连接时间与重连时间
    NET_DVR_SetConnectTime(2000, 1);
    NET_DVR_SetReconnect(10000, true);
    //---------------------------------------
    


    //---------------------------------------
    // 注册设备
    LONG lUserID;
    NET_DVR_DEVICEINFO_V30 struDeviceInfo;
    char IP[] = "*.*.*96";
    char USer[] = "admin";
    char pass[] = "12345";
    lUserID = NET_DVR_Login_V30(IP, 8000, USer,pass , &struDeviceInfo);
    if (lUserID < 0)
    {
        printf("Login error, %d\n", NET_DVR_GetLastError());
        NET_DVR_Cleanup();
        return;
    }
    HWND hWnd = GetConsoleWindow(); //获取窗口句柄
    NET_DVR_VOD_PARA struVodPara = { 0 };
    struVodPara.dwSize = sizeof(struVodPara);
    struVodPara.struIDInfo.dwChannel = 33; //通道号
    struVodPara.hWnd = hWnd; //回放窗口
    struVodPara.struBeginTime.dwYear = 2025; //开始时间
    struVodPara.struBeginTime.dwMonth = 4;
    struVodPara.struBeginTime.dwDay = 30;
    struVodPara.struBeginTime.dwHour = 0;
    struVodPara.struBeginTime.dwMinute = 0;
    struVodPara.struBeginTime.dwSecond = 0;
    struVodPara.struEndTime.dwYear = 2025; //结束时间
    struVodPara.struEndTime.dwMonth = 4;
    struVodPara.struEndTime.dwDay = 30;
    struVodPara.struEndTime.dwHour = 13;
    struVodPara.struEndTime.dwMinute = 7;
    struVodPara.struEndTime.dwSecond = 0;
    //---------------------------------------
    //按时间回放
    int hPlayback;
    hPlayback = NET_DVR_PlayBackByTime_V40(lUserID, &struVodPara);
    if (hPlayback < 0)
    {
        printf("NET_DVR_PlayBackByTime_V40 fail,last error %d\n", NET_DVR_GetLastError());
        NET_DVR_Logout(lUserID);
        NET_DVR_Cleanup();
        
            return;
    }

    //---------------------------------------
    //开始
    if (!NET_DVR_PlayBackControl_V40(hPlayback, NET_DVR_PLAYSTART, NULL, 0, NULL, NULL))
    {
        printf("play back control failed [%d]\n", NET_DVR_GetLastError());
        NET_DVR_Logout(lUserID);
        NET_DVR_Cleanup();
        return;
    }
    Sleep(15000); //millisecond
    if (!NET_DVR_StopPlayBack(hPlayback))
    {
        printf("failed to stop file [%d]\n", NET_DVR_GetLastError());
        NET_DVR_Logout(lUserID);
        NET_DVR_Cleanup();
        return;
    }
    //注销用户
    NET_DVR_Logout(lUserID);
    //释放 SDK 资源
    NET_DVR_Cleanup();
    return;
}