LanMsg 代碼分析

UsersOpt.cs 介紹：

readyLogin() 入口

private void DataArrival(byte[] Data, System.Net.IPAddress Ip, int Port) 這是收到消息的處理函數，裏面有個一個大的switch

ServiceMain.cs

FormAccess.cs

newSendMsgForm() 產生新用戶發送消息窗口 （其中有打洞代碼）
if (user.State != 0 && !user.isWANConnected)//如果用戶在線且與對方未連接，則向服務器請求獲得對方IP與端口，並請求服務器通知對方UDP打洞
    FormAccess.GetUserIPRequest(BitConverter.GetBytes(user.Index));

MyAV.cs 包含一個AV.cs
Connect() 連接到對方並且開始發送AV數據

AV.cs
IniVideoRender(){

            IMLibrary.AV.BITMAPINFOHEADER bmi = new IMLibrary.AV.BITMAPINFOHEADER();
            bmi.biCompression = 0;
            bmi.biWidth = 160;
            bmi.biHeight = 120;
            bmi.biPlanes = 1;
            bmi.biBitCount = 0x18;
            bmi.biXPelsPerMeter = 0;
            bmi.biYPelsPerMeter = 0;
            bmi.biClrUsed = 0;
            bmi.biClrImportant = 0;
            bmi.biSizeImage = 0xE100;//0x9600;
            bmi.biSize = Marshal.SizeOf(bmi);
}

 

WaveOut.cs 包裝 winmm.dll
WaveIn.cs 包裝 winmm.dll

DrawDib.cs 包裝了Render
1. this.SrcRect = this.DstRect = new Rectangle(0, 0, 80, 60);
2. BITMAPINFOHEADER 外面可以直接賦值。
用DrawDibDraw()把BMP圖像繪製到屏幕上。

IniVideoCapture()

VideoCapturer.cs 包裝 AVICAP32.dll
VideoCapturer() 構造函數

             this.m_hwnd = capCreateCaptureWindow("", WS_VISIBLE | WS_CHILD, 0, 0, control.Width, control.Height, control.Handle, 0);
            if (this.m_hwnd == IntPtr.Zero)
            {
                throw new AVException();
            }
            this.m_parms = new IMLibrary.AV.CaptureParms();
            this.m_streamCallBack = new capVideoStreamCallback(this.streamCallBack);
            this.m_errorCallBack = new IMLibrary.AV.capErrorCallback(this.capErrorCallback);