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C# 调用腾讯即时通信 IM的示例

2023-07-11 00:37:03 308

IMSDKAPI概述https://cloud.tencent.com/document/product/269/33543

///
///IMSDK初始化。
///
///
///
///
[DllImport(@"imsdk.dll",CallingConvention=CallingConvention.Cdecl,CharSet=CharSet.Ansi)]
publicexternstaticintTIMInit(longsdk_app_id,stringjson_sdk_config);

///
///登录
///
///用户id
///签名
///
///
[DllImport(@"imsdk.dll",CallingConvention=CallingConvention.Cdecl)]
privateexternstaticintTIMLogin(stringuser_id,stringuser_sig,TIMCommCallbackcb);

///
///接收新消息回调
///
///
[DllImport(@"imsdk.dll",CallingConvention=CallingConvention.Cdecl,CharSet=CharSet.Ansi)]
privateexternstaticvoidTIMAddRecvNewMsgCallback(delegateTIMRecvNewMsgCallbackcb);

publicvoidImInit()
{
intsdk_app_id=1400000000;
vardata=new{sdk_config_log_file_path=AppDomain.CurrentDomain.BaseDirectory,sdk_config_config_file_path=AppDomain.CurrentDomain.BaseDirectory};
TIMInit(sdk_app_id,JsonConvert.SerializeObject(data));
TIMAddRecvNewMsgCallback(TIMRecvNewMsgCallback);
vartLSSig=newTLSSigAPIv2(sdk_app_id,"163250645178b565ffc0b22618d14a88d8a91d86f0e76813313197a5xxxxxxx");
TIMLogin("用户",tLSSig.GenSig("用户"),CommCallback);

}
privatedelegateintTIMCommCallback(intcode,stringdesc,stringjson_params);

privateintCommCallback(intcode,stringdesc,stringjson_params)
{
returncode;
}
publicdelegatevoiddelegateTIMRecvNewMsgCallback([MarshalAs(UnmanagedType.CustomMarshaler,MarshalTypeRef=typeof(Utf8Marshaler))]stringjson_msg_array,IntPtruser_data);;
privatevoidTIMRecvNewMsgCallback(stringjson_msg_array,IntPtruser_data){
varb=Encoding.Default.GetBytes(json_msg_array);
richTextBox1.AppendText(Encoding.UTF8.GetString(b));
}

privatevoidForm1_Load(objectsender,EventArgse)
{
ImInit();
}

publicclassUtf8Marshaler:ICustomMarshaler
    {
        publicvoidCleanUpManagedData(objectmanagedObj)
        {
        }
 
        publicvoidCleanUpNativeData(IntPtrpNativeData)
        {
            Marshal.FreeHGlobal(pNativeData);
        }
 
        publicintGetNativeDataSize()
        {
            return-1;
        }
 
        publicIntPtrMarshalManagedToNative(objectmanagedObj)
        {
            if(object.ReferenceEquals(managedObj,null))
                returnIntPtr.Zero;
            if(!(managedObjisstring))
                thrownewInvalidOperationException();
 
            byte[]utf8Bytes=Encoding.UTF8.GetBytes((string)managedObj);
            IntPtrptr=Marshal.AllocHGlobal(utf8Bytes.Length+1);
            Marshal.Copy(utf8Bytes,0,ptr,utf8Bytes.Length);
            Marshal.WriteByte(ptr,utf8Bytes.Length,0);
            returnptr;
        }
 
        publicobjectMarshalNativeToManaged(IntPtrpNativeData)
        {
            if(pNativeData==IntPtr.Zero)
                returnnull;
 
            Listbytes=newList();
            for(intoffset=0;;offset++)
            {
                byteb=Marshal.ReadByte(pNativeData,offset);
                if(b==0)
                    break;
                else
                    bytes.Add(b);
            }
            returnEncoding.UTF8.GetString(bytes.ToArray(),0,bytes.Count);
        }
 
        privatestaticreadonlyUtf8MarshalerInstance=newUtf8Marshaler();
        publicstaticICustomMarshalerGetInstance(stringcookie)
        {
            returnInstance;
        }
    }

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C# 调用腾讯即时通信 IM的示例

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