C# 快速开始

using SMeetingNet;

SMeetingEngine.SetLanguage("zh-CN");              // 可选：错误文案语言（BCP 47）
var engine = SMeetingEngine.Init();
if (engine == null)
{
    return;      // 初始化失败
}
Console.WriteLine(SMeetingEngine.Version());      // 例：1.0.0-alpha.9

// 引擎级配置必须在 Login 之前设置——底层 rtc 引擎是在 Login 里建的
engine.Setting.EnableStreamLog = 1;
engine.Setting.SdkLogPath = @"D:\log\";

engine.DeviceChanged += (s, e) => Console.WriteLine($"{e.Type} add={e.IsAdd} {e.Name}");

SMeetingStatusCode st = engine.Login(token, (code, data) =>
{
    if (code == SMeetingStatusCode.Ok)
    {
        // data 为后端返回的 json
    }
});

var model = new SMeetingCreateMeetingModel
{
    Title = "我的会议",
    Content = "会议说明",
    MeetingType = 1,   // 1 临时会议，2 预约会议
    MeetingMode = 1,   // 1 普通
};

engine.CreateRoom(model, (code, data) =>
{
    if (code == SMeetingStatusCode.Ok)
    {
        // data 为会议号
    }
});

SMeetingChannel channel = engine.CreateChannel(roomNo);   // 也可是 CreateChannelByMeetingId(meetingId)
if (channel == null)
{
    return;      // roomNo 无效
}

// 事件必须在 Enter 之前接好
channel.Disconnected          += (s, e) => Console.WriteLine($"连接断开 {e.Reason} {e.Code} {e.Message}");
channel.Reconnected           += (s, e) => Console.WriteLine("连接已恢复");
channel.Reconnecting          += (s, e) => Console.WriteLine("连接重连中");
channel.UserEntered           += (s, e) => Console.WriteLine("用户进入 " + e.UserData);   // 成员 json
channel.UserExited            += (s, e) => Console.WriteLine("用户离开 " + e.UserData);
channel.UserCameraStateChanged += (s, e) => Console.WriteLine($"{e.Uid} 摄像头 {e.NewState}");

// 频道级配置：stream_model / mcu_track / enable_audio_record 只在 Enter 阶段读取
SMeetingChannelSetting setting = channel.Setting;
setting.StreamModel = 1;             // 流媒体模式
setting.SpeakerInterval = 500;       // 音柱回调周期 (ms)
setting.StatInterval = 10000;        // 网络统计回调周期 (ms)
setting.RoomName = "张三";            // 入会昵称
setting.StreamVendor = "seastart";   // 后端要求的 vendor 串

st = channel.Enter(pass, (code, data) =>
{
    if (code != SMeetingStatusCode.Ok)
    {
        engine.LeaveChannel(channel);   // 入会失败的频道对象也要回收
        return;
    }
    Console.WriteLine("已进入 " + channel.ChannelId);
});

string me      = channel.GetMeJson();          // 本端成员 json
string room    = channel.GetRoomJson();        // 房间 json
string members = channel.GetMembersJson();     // 成员 json 数组
string member  = channel.GetMemberJson(uid);   // 指定成员 json

SMeetingLocalCamera camera = channel.GetLocalCamera();
if (camera == null) return;

camera.AddPlayView(new SMeetingHwndView(hwnd));        // hwnd 为渲染控件的窗口句柄
camera.SwitchCamera("Integrated Camera", 640, 480);    // 可选：切换设备与分辨率
camera.RequestOpenCamera((code, data) => { /* 打开结果 */ });

camera.RemoveAllPlayView();
camera.CloseCamera((code, data) => { /* 关闭结果 */ });

SMeetingLocalMic mic = channel.GetLocalMic();
if (mic == null) return;

mic.SwitchMic("Default Microphone");    // 可选；传 "default" 表示系统默认设备
mic.RequestOpenMic((code, data) => { /* 打开结果 */ });

mic.CloseMic((code, data) => { /* 关闭结果 */ });

SMeetingRemoteAudio speaker = channel.GetRemoteAudio(string.Empty);
if (speaker == null) return;

speaker.SwitchSpeaker("Default Speakers");     // 可选；传 "default" 表示系统默认设备
speaker.OpenSpeaker();

speaker.CloseSpeaker();

// uid / desc 来自成员 json 的 stream_tracks：摄像头是 camera_big / camera_small，屏幕共享是 screen
SMeetingRemoteVideo remote = channel.GetRemoteVideo(uid, "camera_big");
if (remote == null) return;

remote.AddPlayView(new SMeetingHwndView(hwnd));
SMeetingStatusCode rst = remote.LoadRemoteVideo();      // 订阅并拉流

remote.RemovePlayView(view);
remote.UnloadRemoteVideo();

SMeetingLocalScreen screen = channel.GetLocalScreen();
if (screen == null) return;

screen.AddScreenAudio(true);                        // 是否带系统声音

// tp: 1 屏幕共享，2 窗口共享
// data: 显示器共享传 "x,y,width,height"；窗口共享传 "hwnd:句柄"
screen.RequestShare(1, "0,0,1920,1080", (code, data) => { /* 共享结果 */ });

screen.StopShare((code, data) => { /* 停止结果 */ });

// 公开聊天：tp 1 文本，2 文件，3 图片，4 声音
channel.SendRoomChatMessage(1, "大家好！", (code, data) => { });

// 点对点自定义消息：注意顺序是「目标 id 在前、内容在后」
channel.SendRoomCustomMessage(targetUid, "{\"cmd\":1}", (code, data) => { });

channel.AdminRequestUserOpenCamera(uid, (code, data) => { });
channel.AdminCloseUserCamera(uid, (code, data) => { });
channel.AdminRequestUserOpenMic(uid, (code, data) => { });
channel.AdminCloseUserMic(uid, (code, data) => { });
channel.AdminKickUserOut(uid, (code, data) => { });
channel.AdminDestroyRoom((code, data) => { });          // 结束（解散）会议

SMeetingRecord record = channel.GetLocalRecord();   // 每个频道只有一个录制对象
if (record == null) return;

record.SetRecordFileName(@"C:\record\meeting.mp4");
record.SetWaterMask("会议录制");
record.SetRecordHwnd(hwnd, 0, 0, 0, 0);
record.Start();

// record.Pause();
// record.Stop();

engine.LeaveChannel(channel);   // 销毁该频道，它借出的媒体对象立即失效
channel = null;                 // 对象已销毁，必须自己置空

// 或者一次退掉全部频道
engine.LeaveAllChannels();

engine.Dispose();               // 释放引擎