帮我用C#写一个海康采集图像再传给VisionPro窗口的类

好的，以下是一个简单的C#类，用于从海康相机采集图像，并将图像传递给VisionPro窗口显示：

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using HCNetSDK;
using System.Drawing;
using System.Drawing.Imaging;
using VisionPro;

namespace HikvisionVisionPro
{
    public class HikvisionCamera
    {
        private IntPtr m_lRealHandle = IntPtr.Zero;
        private CHCNetSDK.NET_DVR_DEVICEINFO_V30 m_struDeviceInfo;
        private CHCNetSDK.NET_DVR_PREVIEWINFO m_struPreviewInfo;
        private uint m_iLastErr = 0;
        private bool m_bInitSDK = false;
        private bool m_bRecord = false;
        private bool m_bSaveRealData = false;
        private int m_iPlayHandle = -1;
        private int m_iPort = -1;
        private int m_iWidth = 0;
        private int m_iHeight = 0;
        private byte[] m_bySaveRealData = new byte[1024 * 1024 * 100];
        private int m_iSaveRealDataSize = 0;
        private VDisplay m_display;

        public HikvisionCamera()
        {
            m_struDeviceInfo = new CHCNetSDK.NET_DVR_DEVICEINFO_V30();
            m_struPreviewInfo = new CHCNetSDK.NET_DVR_PREVIEWINFO();
        }

        public bool InitSDK()
        {
            bool result = CHCNetSDK.NET_DVR_Init();
            if (result == false)
            {
                m_iLastErr = CHCNetSDK.NET_DVR_GetLastError();
                MessageBox.Show("SDK初始化失败，错误码：" + m_iLastErr);
                return false;
            }
            else
            {
                m_bInitSDK = true;
                return true;
            }
        }

        public bool Login(string strIP, ushort wPort, string strUsername, string strPassword)
        {
            CHCNetSDK.NET_DVR_DEVICEINFO_V30 struDeviceInfo = new CHCNetSDK.NET_DVR_DEVICEINFO_V30();
            int iUserID = CHCNetSDK.NET_DVR_Login_V30(strIP, wPort, strUsername, strPassword, ref struDeviceInfo);
            if (iUserID < 0)
            {
                m_iLastErr = CHCNetSDK.NET_DVR_GetLastError();
                MessageBox.Show("登录失败，错误码：" + m_iLastErr);
                return false;
            }
            else
            {
                m_struDeviceInfo = struDeviceInfo;
                return true;
            }
        }

        public bool StartPreview(IntPtr hWnd)
        {
            m_struPreviewInfo.hPlayWnd = hWnd;
            m_struPreviewInfo.lChannel = 1;
            m_struPreviewInfo.dwStreamType = 0; // 0-主码流，1-子码流
            m_struPreviewInfo.dwLinkMode = 0; // 0-TCP模式，1-UDP模式，2-多播模式，3-RTP模式，4-RTP/RTSP，5-RSTP/HTTP
            m_struPreviewInfo.bBlocked = true;
            m_lRealHandle = CHCNetSDK.NET_DVR_RealPlay_V40(0, ref m_struPreviewInfo, null, IntPtr.Zero);
            if (m_lRealHandle < 0)
            {
                m_iLastErr = CHCNetSDK.NET_DVR_GetLastError();
                MessageBox.Show("预览失败，错误码：" + m_iLastErr);
                return false;
            }
            else
            {
                return true;
            }
        }

        public bool StopPreview()
        {
            if (m_lRealHandle >= 0)
            {
                if (CHCNetSDK.NET_DVR_StopRealPlay(m_lRealHandle))
                {
                    m_lRealHandle = IntPtr.Zero;
                    return true;
                }
                else
                {
                    m_iLastErr = CHCNetSDK.NET_DVR_GetLastError();
                    MessageBox.Show("停止预览失败，错误码：" + m_iLastErr);
                    return false;
                }
            }
            else
            {
                return true;
            }
        }

        public bool CaptureImage(string strSavePath)
        {
            if (m_lRealHandle < 0)
            {
                MessageBox.Show("请先启动预览!");
                return false;
            }

            CHCNetSDK.NET_DVR_JPEGPARA strPicpara = new CHCNetSDK.NET_DVR_JPEGPARA();
            strPicpara.wPicQuality = 0;
            strPicpara.wPicSize = 0;
            bool result = CHCNetSDK.NET_DVR_CaptureJPEGPicture(m_lRealHandle, 1, ref strPicpara, strSavePath);
            if (result == false)
            {
                m_iLastErr = CHCNetSDK.NET_DVR_GetLastError();
                MessageBox.Show("抓图失败，错误码：" + m_iLastErr);
                return false;
            }
            else
            {
                return true;
            }
        }

        public bool StartRecord(string strSavePath)
        {
            if (m_lRealHandle < 0)
            {
                MessageBox.Show("请先启动预览!");
                return false;
            }

            if (m_bRecord == true)
            {
                MessageBox.Show("正在录像，请先停止录像!");
                return false;
            }

            if (m_bSaveRealData == true)
            {
                MessageBox.Show("正在保存实时数据，请先停止保存!");
                return false;
            }

            m_bRecord = true;
            if (CHCNetSDK.NET_DVR_SaveRealData(m_lRealHandle, strSavePath))
            {
                return true;
            }
            else
            {
                m_iLastErr = CHCNetSDK.NET_DVR_GetLastError();
                MessageBox.Show("启动录像失败，错误码：" + m_iLastErr);
                m_bRecord = false;
                return false;
            }
        }

        public bool StopRecord()
        {
            if (m_bRecord == false)
            {
                MessageBox.Show("没有在录像!");
                return false;
            }

            m_bRecord = false;
            if (CHCNetSDK.NET_DVR_StopSaveRealData(m_lRealHandle))
            {
                return true;
            }
            else
            {
                m_iLastErr = CHCNetSDK.NET_DVR_GetLastError();
                MessageBox.Show("停止录像失败，错误码：" + m_iLastErr);
                return false;
            }
        }

        public void SetDisplay(VDisplay display)
        {
            m_display = display;
        }

        public void StartDisplay()
        {
            if (m_iPlayHandle > 0)
            {
                MessageBox.Show("正在播放，请先停止!");
                return;
            }

            if (m_iPort < 0)
            {
                m_iPort = CHCNetSDK.NET_DVR_GetRealPlayerIndex();
            }

            if (m_display != null)
            {
                m_display.Start();
            }

            if (CHCNetSDK.NET_DVR_RigisterDrawFun(m_iPort, DrawFun, IntPtr.Zero))
            {
                if (CHCNetSDK.NET_DVR_PlayBackByPreview(m_lRealHandle, m_iPort))
                {
                    m_iPlayHandle = m_iPort;
                }
                else
                {
                    m_iLastErr = CHCNetSDK.NET_DVR_GetLastError();
                    MessageBox.Show("启动播放失败，错误码：" + m_iLastErr);
                }
            }
            else
            {
                m_iLastErr = CHCNetSDK.NET_DVR_GetLastError();
                MessageBox.Show("注册回调函数失败，错误码：" + m_iLastErr);
            }
        }

        public void StopDisplay()
        {
            if (m_iPlayHandle > 0)
            {
                CHCNetSDK.NET_DVR_StopPlayBack(m_iPlayHandle);
                m_iPlayHandle = -1;
            }

            if (m_display != null)
            {
                m_display.Stop();
            }
        }

        private void DrawFun(int lRealHandle, IntPtr hDc, uint dwUser)
        {
            if (m_display != null)
            {
                Bitmap bmp = GetBitmap(lRealHandle);
                m_display.DrawBitmap(bmp);
            }
        }

        private Bitmap GetBitmap(int lRealHandle)
        {
            IntPtr pBitmap = IntPtr.Zero;
            CHCNetSDK.NET_DVR_GetBitmap(lRealHandle, ref pBitmap);
            Bitmap bmp = Bitmap.FromHbitmap(pBitmap);
            DeleteObject(pBitmap);
            return bmp;
        }

        [System.Runtime.InteropServices.DllImport("gdi32.dll")]
        static extern bool DeleteObject(IntPtr hObject);
    }
}

使用方法：

1. 在你的项目中添加VisionPro和海康相机SDK的引用，并将HCNetSDK.dll文件复制到你的项目目录下。

2. 创建一个HikvisionCamera对象，并调用InitSDK方法初始化SDK。

   HikvisionCamera camera = new HikvisionCamera();
   camera.InitSDK();

3. 调用Login方法登录相机。

   string strIP = "192.168.1.64";
   ushort wPort = 8000;
   string strUsername = "admin";
   string strPassword = "123456";
   camera.Login(strIP, wPort, strUsername, strPassword);

4. 调用StartPreview方法启动预览。

   IntPtr hWnd = pictureBox1.Handle;
   camera.StartPreview(hWnd);

5. 调用StartDisplay方法启动图像显示。

   VDisplay display = new VDisplay(pictureBox1.Handle);
   camera.SetDisplay(display);
   camera.StartDisplay();

6. 调用StopDisplay方法停止图