前言

????? 寫系列文章的時候[前言]部分變得無言了，可能來得順利了點吧: ) 本章中提供的封裝均是我用笨辦法從<<Hikvision 板卡網絡開發包編程手冊V4.7>>和<<DS-4000HC、HCS、HC+、HF、HS、MD卡的Windows編程指南V4.3>>中拷貝出來并參照VC++代碼進行整理的，主要是針對HikServer.dll和DS40xxSDK.dll的調用封裝。

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注意

?????本系列文章限于學習交流，注重過程，由于涉及公司，所以不提供源代碼下載，非常抱歉！！但是請大家放心，核心、實現以及其他能夠貼出來的代碼我都會貼出來，并且爭取盡所能的回答留言里的每一個問題，感謝大家關注，歡迎交流 :)

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系列

1.?????C# 視頻監控系列(1)：準備

?????2.?????C# 視頻監控系列(2)：客戶端——封裝API

?????3.?????C# 視頻監控系列(3)：客戶端——連接服務器

?????4.?????C# 視頻監控系列(4)：客戶端——音頻接收和抓圖

?????5.?????C# 視頻監控系列(5)：客戶端——給服務器端發送字符串和錄像(數據捕獲)

?????6.?????C# 視頻監控系列(6)：服務器端——封裝API(上) [HikServer.dll]

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正文

?????1.?????HikServer.dll
?

using?System;
using?System.Collections.Generic;
using?System.Text;
using?System.Runtime.InteropServices;

namespace?HikServer
{

????public?struct?PSERVER_VIDEOINFO
????{
????????///?<summary>
????????///?序列號
????????///?BYTE????m_datatype[64];
????????///?</summary>
????????[MarshalAs(UnmanagedType.ByValArray,?SizeConst?=?64)]
????????public?byte[]?m_datatype;
????????///?<summary>
????????///?系統的通道個數
????????///?BYTE????m_channum;
????????///?</summary>
????????public?byte?m_channum;
????????///?<summary>
????????///?超時等待時間，1-300單位：分鐘?
????????///?DWORD???m_waittime;
????????///?</summary>
????????public?int?m_waittime;
????????///?<summary>
????????///?目前沒有使用
????????///?DWORD???m_bufnum;
????????///?</summary>
????????public?ulong?m_bufnum;
????}

????//[StructLayout(LayoutKind.Sequential)]
????//public?struct?PSERVER_VIDEOINFO
????//{
????//????public?IntPtr?m_datatype;??//序列號??
????//????public?byte?m_channum;//系統的通道個數?
????//????public?int?m_waittime;//超時等待時間，1-300單位：分鐘?
????//????public?int?m_bufnum;//目前沒有使用?
????//}

????///?<summary>
????///?通道數據類型
????///?</summary>
????public?enum?ChannelDataType
????{
????????NORMAL?=?50,
????????DIALING,
????????SMALLPIC
????}

????///?<summary>
????///?VC++Demo：委托內調用SetIBPMode(ChannelHandle[port],211,2,2,framerat);
????///?</summary>
????///?<param?name="port"></param>
????///?<param?name="framerat"></param>
????public?delegate?void?SetIBP(int?port,?int?framerat);

????///?<summary>
????///?VC++Demo：委托內調用CaptureIFrame(ChannelHandle[port]);
????///?</summary>
????///?<param?name="port"></param>
????public?delegate?void?MakeIFrame(int?port);

????///?<summary>
????///?VC++Demo：委托內調用StartVideoCapture(ChannelHandle[port]);????
????///?</summary>
????///?<param?name="nChannel"></param>
????public?delegate?void?StartCap(int?nChannel);

????///?<summary>
????///?VC++Demo：委托內調用StopVideoCapture(ChannelHandle[port]);
????///?</summary>
????///?<param?name="nChannel"></param>
????public?delegate?void?StopCap(int?nChannel);

????///?<summary>
????///?驗證用戶名密碼
????///?</summary>
????///?<param?name="username"></param>
????///?<param?name="namelen"></param>
????///?<param?name="password"></param>
????///?<param?name="passlen"></param>
????///?<returns></returns>
????[UnmanagedFunctionPointer(CallingConvention.StdCall)]
????public?delegate?int?CheckPassword(string?username,?ushort?namelen,?string?password,?ushort?passlen);

????///?<summary>
????///?驗證IP
????///?????VC++Demo：return?0;
????///?</summary>
????///?<param?name="nChannel"></param>
????///?<param?name="nIP"></param>
????///?<returns></returns>
????[UnmanagedFunctionPointer(CallingConvention.StdCall)]
????public?delegate?int?CheckIP(int?nChannel,?string?nIP);

????public?static?class?HikServer
????{
????????public?static?readonly?uint?WM_USER?=?0x0400;

????????///?<summary>
????????///?啟動服務端
????????///?????返回true表示成功，返回false表示失敗
????????///?<code>
????????///?BOOL??__stdcall??MP4_ServerStart(PSERVER_VIDEOINFO?videoinfo);?
????????///?</code>
????????///?</summary>
????????///?<param?name="videoinfo"></param>
????????///?<returns></returns>
????????[DllImport("HikServer.dll")]
????????public?static?extern?int?MP4_ServerStart(ref?PSERVER_VIDEOINFO?videoinfo);

????????///?<summary>
????????///?停止服務端
????????///?????返回true表示成功，返回false表示失敗
????????///?<code>
????????///?BOOL??__stdcall??MP4_ServerStop();?
????????///?</code>
????????///?</summary>
????????///?<returns></returns>
????????[DllImport("HikServer.dll")]
????????public?static?extern?bool?MP4_ServerStop();

????????///?<summary>
????????///?獲取服務器狀態
????????///?????返回true表示服務器已經啟動，返回false表示服務器沒有啟動
????????///?<code>
????????///?BOOL??__stdcall??MP4_ServerGetState(WORD?*?clientnum);?
????????///?typedef?unsigned?short??????WORD;
????????///?</code>
????????///?</summary>
????????///?<param?name="clientnum">表示當前與服務器相連的客戶端數據</param>
????????///?<returns></returns>
????????[DllImport("HikServer.dll")]
????????public?static?extern?bool?MP4_ServerGetState(out?ushort?clientnum);

????????///?<summary>
????????///?給客戶端發送命令碼
????????///?????和函數MP4_ServerStringToClient不同，它給正連接在該通道上的所有客戶端發送命令碼。?
????????///?????返回true表示成功，返回false表示失敗?
????????///?<code>
????????///?BOOL??__stdcall??MP4_ServerCommandToClient(char?cCommand,char?nChannel);?
????????///?</code>
????????///?</summary>
????????///?<param?name="cCommand">命令碼</param>
????????///?<param?name="nChannel">通道號</param>
????????[DllImport("HikServer.dll")]
????????public?static?extern?void?MP4_ServerCommandToClient(int?cCommand,?int?nChannel);

????????///?<summary>
????????///?設置接收命令碼的相關參數
????????///?<code>
????????///?void??__stdcall??MP4_ServerSetMessage(UINT?nMessage,HWND?hWnd);?
????????///?</code>
????????///?</summary>
????????///?<param?name="nMessage">對應接收程序的消息</param>
????????///?<param?name="hWnd">應用程序窗口句柄</param>
????????[DllImport("HikServer.dll")]
????????public?static?extern?void?MP4_ServerSetMessage(uint?nMessage,?IntPtr?hWnd);

????????///?<summary>
????????///?設置是否進行IP驗證。?
????????///?????如果進行IP驗證，調用該函數，那么每次客戶端連接的時候，會調用CheckIP。?
????????///?????如果不進行IP驗證，不需要調用該函數。?
????????///?????如果調用了MP4_ServerCheckIP之后，又想取消IP驗證，只需要調用MP4_ServerCheckIP(NULL)。?
????????///?<code>
????????///?void??__stdcall?MP4_ServerCheckIP(int(CALLBACK?*CheckIP)(DWORD?nChannel,char*?nIP));?
????????///?CheckIP函數說明：nChannel表示通道號，nIP表示客戶端的IP地址。返回0表示驗證通過，返回-1?
????????///?表示驗證沒有通過。?
????????///?</code>
????????///?</summary>
????????[DllImport("HikServer.dll")]
????????public?static?extern?void?MP4_ServerCheckIP(CheckIP?cip);

????????///?<summary>
????????///?設置是否進行用戶身份驗證。?
????????///?????使用同MP4_ServerCheckIP。?
????????///?????目前namelen和password兩個值無效，都是50，并不表示用戶名和密碼的實際長度。用戶名和密碼必須小于50個字節。?
????????///?說明：?
????????///?????1>因為開發包對用戶名和密碼不做任何處理，只是簡單地分別發送50字節的數據到服務端，所以在驗證
????????///???????的實現過程中，用戶可以通過設置標志位的方法來確定用戶名和密碼的實際長度。?
????????///?????2>也可以同時進行IP驗證和用戶身份驗證。在開發包中先進行用戶身份驗證，再進行IP驗證。?
????????///?<code>
????????///?7.?void??__stdcall??MP4_ServerCheckPassword(int(CALLBACK?*CheckPassword)(char?*username,WORD?namelen,char?*password,WORD?passlen));?
????????///?CheckPassword函數說明：username表示用戶名，namelen表示用戶名字符串長度，password表示密碼，passlen表示密碼字符串長度。
????????///?</code>
????????///?</summary>
????????///?<param?name="nMessage"></param>
????????///?<param?name="hWnd"></param>
????????[DllImport("HikServer.dll")]
????????public?static?extern?void?MP4_ServerCheckPassword(CheckPassword?cp);

????????///?<summary>
????????///?往發送緩存寫數據。?
????????///?????網絡開發包通過這個接口獲得板卡的數據。?
????????///?說明：?
????????///?????現在開發包內部不會直接調用StartVideoCapture和StopVideoCapture函數，而是通過StartCap和StopCap
????????///?????來啟動和停止捕獲數據。如果用戶調用StopVideoCapture或者停止調用MP4_ServerWriteData都會使客戶
????????///?????端無法收到數據。
????????///?<code>
????????///?8.?void??__stdcall??MP4_ServerWriteData(DWORD?nChannel,UCHAR?*pPacketBuffer,?DWORD??nPacketSize,?int?frameType,?int?breakable);?
????????///?typedef?unsigned?long???????DWORD;
????????///?typedef?unsigned?char?UCHAR;
????????///?</code>
????????///?</summary>
????????///?<param?name="nChannel">通道號。</param>
????????///?<param?name="pPacketBuffer">緩沖區指針。</param>
????????///?<param?name="nPacketSize">緩沖區長度。?</param>
????????///?<param?name="frameType">幀類型。</param>
????????///?<param?name="breakable">ReadStreamData的返回值</param>
????????[DllImport("HikServer.dll")]
????????public?static?extern?void?MP4_ServerWriteData(ulong?nChannel,?string?pPacketBuffer,?ulong?nPacketSize,?int?frameType,?int?breakable);

轉載于:https://blog.51cto.com/over140/586668

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