大华摄像头实时视频接入Demo

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

namespace NetSDKCS
{
    public static class NETClient
    {
        #region << constant >>

        /// 

        /// whether to throw an execption.
        /// 是否抛异常
        /// 

        private static bool m_IsThrowErrorMessage = false;

        /// 

        /// Query splice screen（struct NET_COMPOSITE_CHANNEL）
        /// 

        public static uint NET_DEVSTATE_COMPOSITE_CHN = 0x0047;

        /// 

        /// en-us language
        /// 英文错误码对应的错误信息
        /// 

        private static Dictionary en_us_String = new Dictionary（） 
        {
            {EM_ErrorCode.NET_NOERROR“No error“}
            {EM_ErrorCode.NET_ERROR“Unknown error“}
            {EM_ErrorCode.NET_SYSTEM_ERROR“Windows system error“}
            {EM_ErrorCode.NET_NETWORK_ERROR“Protocol error it may result from network timeout“}
            {EM_ErrorCode.NET_DEV_VER_NOMATCH“Device protocol does not match“}
            {EM_ErrorCode.NET_INVALID_HANDLE“Handle is invalid“}
            {EM_ErrorCode.NET_OPEN_CHANNEL_ERROR“Failed to open channel“}
            {EM_ErrorCode.NET_CLOSE_CHANNEL_ERROR“Failed to close channel“}
            {EM_ErrorCode.NET_ILLEGAL_PARAM“User parameter is illegal“}
            {EM_ErrorCode.NET_SDK_INIT_ERROR“SDK initialization error“} 
            {EM_ErrorCode.NET_SDK_UNINIT_ERROR“SDK clear error“}
            {EM_ErrorCode.NET_RENDER_OPEN_ERROR“Error occurs when apply for render resources“}
            {EM_ErrorCode.NET_DEC_OPEN_ERROR“Error occurs when opening the decoder library“}
            {EM_ErrorCode.NET_DEC_CLOSE_ERROR“Error occurs when closing the decoder library“}
            {EM_ErrorCode.NET_MULTIPLAY_NOCHANNEL“The detected channel number is 0 in multiple-channel preview“} 
            {EM_ErrorCode.NET_TALK_INIT_ERROR“Failed to initialize record library“}
            {EM_ErrorCode.NET_TALK_NOT_INIT“The record library has not been initialized“}
            {EM_ErrorCode.NET_TALK_SENDDATA_ERROR“Error occurs when sending out audio data“}
            {EM_ErrorCode.NET_REAL_ALREADY_SAVING“The real-time has been protected“}
            {EM_ErrorCode.NET_NOT_SAVING“The real-time data has not been save“}
            {EM_ErrorCode.NET_OPEN_FILE_ERROR“Error occurs when opening the file“}
            {EM_ErrorCode.NET_PTZ_SET_TIMER_ERROR“Failed to enable PTZ to control timer“}
            {EM_ErrorCode.NET_RETURN_DATA_ERROR“Error occurs when verify returned data“}
            {EM_ErrorCode.NET_INSUFFICIENT_BUFFER“There is no sufficient buffer“}
            {EM_ErrorCode.NET_NOT_SUPPORTED“The current SDK does not support this function“}
            {EM_ErrorCode.NET_NO_RECORD_FOUND“There is no searched result“}
 

 属性            大小     日期    时间   名称
----------- ---------  ---------- -----  ----
     目录           0  2019-01-20 10:26  .vs
     目录           0  2019-01-20 10:26  .vsRealPlayAndPTZDemo
     目录           0  2019-01-20 10:26  .vsRealPlayAndPTZDemoDesignTimeBuild
     文件         644  2019-01-24 08:36  .vsRealPlayAndPTZDemoDesignTimeBuild.dtbcache
     目录           0  2019-01-24 08:36  .vsRealPlayAndPTZDemov15
     文件       33792  2019-01-24 08:36  .vsRealPlayAndPTZDemov15.suo
     目录           0  2019-01-20 10:26  .vsRealPlayAndPTZDemov15Server
     目录           0  2019-01-20 10:26  .vsRealPlayAndPTZDemov15Serversqlite3
     文件           0  2019-01-19 14:55  .vsRealPlayAndPTZDemov15Serversqlite3db.lock
     文件        4096  2019-01-19 14:55  .vsRealPlayAndPTZDemov15Serversqlite3storage.ide
     文件       32768  2019-01-22 16:24  .vsRealPlayAndPTZDemov15Serversqlite3storage.ide-shm
     文件     2476152  2019-01-22 16:24  .vsRealPlayAndPTZDemov15Serversqlite3storage.ide-wal
     目录           0  2019-01-20 10:26  NetSDKCS
     目录           0  2019-01-20 10:26  NetSDKCSin
     目录           0  2019-01-19 14:54  NetSDKCSinDebug
     目录           0  2019-01-20 10:26  NetSDKCSinRelease
     文件      135680  2019-01-19 15:13  NetSDKCSinReleaseNetSDKCS.dll
     文件       44544  2019-01-19 15:13  NetSDKCSinReleaseNetSDKCS.pdb
     文件      134265  2018-01-27 15:00  NetSDKCSNetSDK.cs
     文件        2194  2018-01-27 15:00  NetSDKCSNetSDKCS.csproj
     文件      757795  2018-01-27 15:00  NetSDKCSNetSDKStruct.cs
     目录           0  2019-01-20 10:26  NetSDKCSobj
     目录           0  2019-01-20 10:26  NetSDKCSobjDebug
     文件          42  2019-01-19 14:54  NetSDKCSobjDebugNetSDKCS.csproj.CoreCompileInputs.cache
     文件        2926  2019-01-19 14:54  NetSDKCSobjDebugNetSDKCS.csprojAssemblyReference.cache
     目录           0  2019-01-19 14:54  NetSDKCSobjDebugTempPE
     目录           0  2019-01-20 10:26  NetSDKCSobjRelease
     文件          42  2019-01-19 15:13  NetSDKCSobjReleaseNetSDKCS.csproj.CoreCompileInputs.cache
     文件        1007  2019-01-19 15:13  NetSDKCSobjReleaseNetSDKCS.csproj.FileListAbsolute.txt
     文件        2926  2019-01-19 15:13  NetSDKCSobjReleaseNetSDKCS.csprojAssemblyReference.cache
     文件      135680  2019-01-19 15:13  NetSDKCSobjReleaseNetSDKCS.dll
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