private ScreenCaptureInfo GetScreen(byte[] receiveBytes)
{
int tempOffset = 0;
var lenBytes = new byte[4];
Array.Copy(receiveBytes, tempOffset, lenBytes, 0, 4);
int alllength = BitConverter.ToInt32(lenBytes, 0);
tempOffset += 4;
Array.Copy(receiveBytes, tempOffset, lenBytes, 0, 4);
int userLength = BitConverter.ToInt32(lenBytes, 0);
var userBytes = new byte[userLength];
tempOffset += 4;
Array.Copy(receiveBytes, tempOffset, userBytes, 0, userLength);
string userString = Encoding.UTF8.GetString(userBytes);
ScreenCaptureInfo info = JsonHelper.DeserializeObj <ScreenCaptureInfo>(userString);
tempOffset += userLength;
Array.Copy(receiveBytes, tempOffset, lenBytes, 0, 4);
int imgLength = BitConverter.ToInt32(lenBytes, 0);
var imgBytes = new byte[imgLength];
tempOffset += 4;
Array.Copy(receiveBytes, tempOffset, imgBytes, 0, imgLength);
info.Image = FileHelper.ByteArrayToImage(imgBytes);
return(info);
}
public StudentScreen(ScreenCaptureInfo info)
{
InitializeComponent();
this.picScreen.Image = info.Image;
this.labName.Text = info.DisplayName;
this.UserName = info.UserName;
}
private void AddStudentScreenToPanel(ScreenCaptureInfo sinfo)
{
//var saveAudioFilePath = Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "screen");
//if (!Directory.Exists(saveAudioFilePath))
//{
// Directory.CreateDirectory(saveAudioFilePath);
//}
//sinfo.Image.Save(Path.Combine(saveAudioFilePath, DateTime.Now.Ticks + ".png"));
bool isExist = false;
foreach (StudentScreen item in flowLayoutPanel1.Controls)
{
if (item.UserName == sinfo.UserName)
{
isExist = true;
item.UpdateScreen(sinfo.Image);
break;
}
}
if (!isExist)
{
StudentScreen newItem = new StudentScreen(sinfo);
flowLayoutPanel1.Controls.Add(newItem);
newItem.Width = 300;
newItem.Height = 220;
}
}
private void GetScreenCapture()
{
// sc = new ScreenCapture();
//// capture entire screen, and save it to a file
//// Image img = sc.CaptureScreen();
//// display image in a Picture control named imageDisplay
//// this.pictureBox1.Image = img;
//// capture this window, and save it
//string pathPerc = @"Send.png";
//string source = @"Capture.png";
//sc.CaptureScreenToFile(source, ImageFormat.Png);
//getThumImage(source, 40, 5, pathPerc);
//string fullPath = Path.Combine(AppDomain.CurrentDomain.BaseDirectory, pathPerc);
//GlobalVariable.client.SendDesktopPic(fullPath);
// GlobalVariable.client.CreateUDPStudentHole();
isRunScreen = true;
while (isRunScreen)
{
lock (obLock)
{
try
{
Image img = sc.CaptureScreen();
var thumImg = getThumImage(img, 40, 5);
ScreenCaptureInfo info = new ScreenCaptureInfo();
info.DisplayName = GlobalVariable.LoginUserInfo.DisplayName;
info.UserName = GlobalVariable.LoginUserInfo.UserName;
var userJson = JsonHelper.SerializeObj(info);
byte[] userBytes = Encoding.UTF8.GetBytes(userJson);
byte[] userLengthBytes = BitConverter.GetBytes(userBytes.Length);
byte[] imgBytes = FileHelper.ImageToByteArray(thumImg);
byte[] imgLengthBytes = BitConverter.GetBytes(imgBytes.Length);
byte[] allLengtBytes = BitConverter.GetBytes(userBytes.Length + userLengthBytes.Length + imgBytes.Length + imgLengthBytes.Length);
List <byte> byteSource = new List <byte>();
byteSource.AddRange(allLengtBytes);
byteSource.AddRange(userLengthBytes);
byteSource.AddRange(userBytes);
byteSource.AddRange(imgLengthBytes);
byteSource.AddRange(imgBytes);
var sendBytes = byteSource.ToArray();
GlobalVariable.client.SendDesktopPic(sendBytes);
// GlobalVariable.client.StopUdp();
Thread.Sleep(1000);
}
catch (Exception ex)
{
Loger.LogMessage(ex);
}
}
}
}
private void GetScreenCapture()
{
isRunScreen = true;
while (isRunScreen)
{
lock (obLock)
{
try
{
if (sc == null)
{
sc = new ScreenCapture();
}
byte[] imgBytes = sc.GetCaptureScreenToSmallFile(tempScreenFile, ImageFormat.Jpeg);// sc.CaptureScreen();
ScreenCaptureInfo info = new ScreenCaptureInfo();
info.DisplayName = GlobalVariable.LoginUserInfo.DisplayName;
info.UserName = GlobalVariable.LoginUserInfo.UserName;
var userJson = JsonHelper.SerializeObj(info);
byte[] userBytes = Encoding.UTF8.GetBytes(userJson);
byte[] userLengthBytes = BitConverter.GetBytes(userBytes.Length);
// byte[] imgBytes = FileHelper.ImageToByteArray(screenImage);
byte[] imgLengthBytes = BitConverter.GetBytes(imgBytes.Length);
byte[] allLengtBytes = BitConverter.GetBytes(userBytes.Length + userLengthBytes.Length + imgBytes.Length + imgLengthBytes.Length);
List <byte> byteSource = new List <byte>();
byteSource.AddRange(allLengtBytes);
byteSource.AddRange(userLengthBytes);
byteSource.AddRange(userBytes);
byteSource.AddRange(imgLengthBytes);
byteSource.AddRange(imgBytes);
var sendBytes = byteSource.ToArray();
udpClient.SendDesktopPic(sendBytes);
// udpClient.WaitUdp();
// Loger.LogMessage("GetScreenCapture:");
Thread.Sleep(5000);
}
catch (Exception ex)
{
Loger.LogMessage(ex);
}
}
}
}
private void AddScreen(ScreenCaptureInfo sinfo)
{
bool isExist = false;
foreach (StudentScreen item in flowLayoutPanel1.Controls)
{
if (item.UserName == sinfo.UserName)
{
isExist = true;
item.UpdateScreen(sinfo.Image);
break;
}
}
if (!isExist)
{
StudentScreen newItem = new StudentScreen(sinfo);
flowLayoutPanel1.Controls.Add(newItem);
}
}
private void ReceiveScreenCapture()
{
try
{
while (true)
{
lock (obLock)
{
sinfo = GlobalVariable.client.GetReceieveDesktopInfo();
Loger.LogMessage("收到udp信息：" + JsonHelper.SerializeObj(sinfo));
this.InvokeOnUiThreadIfRequired(() =>
{
AddScreen(sinfo);
});
Thread.Sleep(200);
}
}
}
catch (Exception ex)
{
Loger.LogMessage(ex);
}
}
/// <summary>
/// Initial WebRtc Component
/// </summary>
protected void RtcInitial()
{
try
{
WebRtcNative.InitializeSSL();
ServerUrls.GetStunUrls().ForEach(url =>
{
// Set Stun Servers
_WebRtc.AddServerConfig(url, string.Empty, string.Empty);
});
// Get audio control
_WebRtc.SetAudio(true);
_WebRtc.OpenVideoCaptureDevice("");
// Set Video Capturer
{
IVedioCaptureInfo cptr = new ScreenCaptureInfo();
_WebRtc.SetVideoCapturer(cptr.Width, cptr.Height, cptr.CaptureFps);
}
// Relative Connection callback
{
// Be triggered On Success to generate Offer
_WebRtc.OnSuccessOffer += (sdp) =>
{
OfferSpdMsg msg = new OfferSpdMsg
{
Command = SocketMessage.OfferSpd,
SDP = sdp
};
_SocketClient.Send(JsonConvert.SerializeObject(msg));
};
// Be triggered On Success to generate ICE
_WebRtc.OnIceCandidate += (sdp_mid, sdp_mline_index, sdp) =>
{
IceCandidateMsg msg = new IceCandidateMsg
{
Command = SocketMessage.OnIceCandidate,
SDP = sdp,
SdpMid = sdp_mid,
SdpMlineIndex = sdp_mline_index,
};
_SocketClient.Send(JsonConvert.SerializeObject(msg));
};
// Be triggered On OfferRequest
_WebRtc.OnSuccessAnswer += (sdp) =>
{
SuccessAnswerMsg msg = new SuccessAnswerMsg
{
Command = SocketMessage.OnSuccessAnswer,
SDP = sdp
};
_SocketClient.Send(JsonConvert.SerializeObject(msg));
};
}
// Set Local and Remote callback
{
_WebRtc.OnRenderLocal += _OnRenderLocalCallback;
_WebRtc.OnRenderRemote += _OnRenderRemoteCallback;
}
// Set Other callback
{
_WebRtc.OnSuccessAnswer += (sdp) => { Debug.WriteLine($"Success Get SDP:{sdp}"); };
_WebRtc.OnFailure += (failure) => { Debug.WriteLine($"Failure Msg:{failure}"); };
_WebRtc.OnError += (error) => { Debug.WriteLine($"Error Msg:{error}"); };
_WebRtc.OnDataMessage += (dmsg) => { Debug.WriteLine($"OnDataMessage: {dmsg}"); };
_WebRtc.OnDataBinaryMessage += (dmsg) => { Debug.WriteLine($"OnDataBinaryMessage: {dmsg.Length}"); };
}
}
catch (Exception ex) { }
}