public bool Connect(VncConfig a_config)
{
// Connect Vnc
m_client?.Dispose();
m_client = new VncClient(a_config);
m_client.DisconnectedEvent += (s, e) =>
{
if (InvokeRequired)
{
Invoke((MethodInvoker) delegate
{
DisconnectedEvent?.Invoke(s, e);
});
}
else
{
DisconnectedEvent?.Invoke(s, e);
}
};
bool retVal = m_client.ConnectVnc();
if (!retVal)
{
m_client.Dispose();
m_client = null;
return(false);
}
// Draw the whole for the first time.
m_needsRedraw = true;
// Initialize zoom ratio for mouseEvent.
m_xZoom = new Fraction(this.Width, m_client.ServerInitBody.FramebufferWidth, 10);
m_yZoom = new Fraction(this.Height, m_client.ServerInitBody.FramebufferHeight, 10);
// Create new image to draw OpenCv Mat.
m_image?.Dispose();
m_image = new Bitmap(m_client.ServerInitBody.FramebufferWidth, m_client.ServerInitBody.FramebufferHeight, System.Drawing.Imaging.PixelFormat.Format24bppRgb);
// Create read thread
m_cancelTokenSource?.Dispose();
m_cancelTokenSource = new CancellationTokenSource();
var token = m_cancelTokenSource.Token;
m_readTask?.Dispose();
m_readTask = Task.Factory.StartNew(() =>
{
while (true)
{
if (m_client != null && m_client.Connected)
{
// If Read is failed, it returns null.
var body = m_client.ReadServerMessage();
if (body == null)
{
// Disconnect
m_client?.DisconnectVnc();
// Execute to draw this control black.
// Without this, the screen will not be updated and the VNC image will remain.
NativeMethods.InvalidateRect(m_handle, (IntPtr)0, false);
return;
}
if (body.MessageType == VncEnum.MessageTypeServerToClient.FramebufferUpdate)
{
NativeMethods.InvalidateRect(m_handle, (IntPtr)0, false);
lock (m_client.CanvasLock)
{
m_encodeList.Add(body.EncodeList);
}
}
if (token.IsCancellationRequested)
{
return;
}
}
}
}, m_cancelTokenSource.Token);
return(retVal);
}
private void c_connectButton_Click(object sender, EventArgs e)
{
if (string.IsNullOrEmpty(c_addressTextBox.Text) ||
string.IsNullOrEmpty(c_passwordTextBox.Text))
{
return;
}
if (m_connectMode)
{
// Protocol Version
VncEnum.Version version = VncEnum.Version.None;
if (Properties.Settings.Default.Protocol33)
{
version = VncEnum.Version.Version33;
}
else if (Properties.Settings.Default.Protocol37)
{
version = VncEnum.Version.Version37;
}
else if (Properties.Settings.Default.Protocol38)
{
version = VncEnum.Version.Version38;
}
// Encodings
var useEncodingList = new List <VncEnum.EncodeType>();
foreach (var v in Properties.Settings.Default.EncodingList)
{
useEncodingList.Add((VncEnum.EncodeType)(int.Parse(v)));
}
// Colour
bool isColourSpecified = !Properties.Settings.Default.ColourLevelReceived;
PixelFormat specifiedColor = PixelFormat.PixelFormatDepth24;
if (Properties.Settings.Default.ColourLevelDepth16)
{
specifiedColor = PixelFormat.PixelFormatDepth16;
}
else if (Properties.Settings.Default.ColourLevelDepth8Colour64)
{
specifiedColor = PixelFormat.PixelFormatDepth8Colour64;
}
else if (Properties.Settings.Default.ColourLevelDepth8Colour8)
{
specifiedColor = PixelFormat.PixelFormatDepth8Colour8;
}
var config = new VncConfig(c_addressTextBox.Text,
5900,
c_passwordTextBox.Text,
version,
useEncodingList.ToArray(),
isColourSpecified,
specifiedColor,
Properties.Settings.Default.SendKeyboard,
Properties.Settings.Default.SendPointer);
bool result = c_vncControl.Connect(config);
if (result)
{
c_connectButton.Text = "Disconnect";
m_connectMode = false;
}
}
else
{
c_vncControl.Disconnect();
c_connectButton.Text = "Connect";
m_connectMode = true;
}
}
