public static void WriteProtocolVersion(Stream a_stream, VncEnum.Version a_version)
{
int version = 0;
switch (a_version)
{
case VncEnum.Version.Version33:
version = 3;
break;
case VncEnum.Version.Version37:
version = 7;
break;
case VncEnum.Version.Version38:
version = 8;
break;
default:
throw new ArgumentException($"Unknown version. {a_version}");
}
byte[] buffer = Encoding.ASCII.GetBytes($"RFB 003.00{version}\n");
a_stream.Write(buffer, 0, buffer.Length);
}
public static VncEnum.Version ReadProtocolVersion(Stream a_stream, VncEnum.Version a_forceVersion)
{
byte[] buffer = new byte[12];
a_stream.ReadAll(buffer, 0, buffer.Length);
if (buffer.SequenceEqual(Encoding.ASCII.GetBytes("RFB 003.003\n")) ||
buffer.SequenceEqual(Encoding.ASCII.GetBytes("RFB 003.005\n")))
{
return(VncEnum.Version.Version33);
}
else if (buffer.SequenceEqual(Encoding.ASCII.GetBytes("RFB 003.007\n")))
{
return(VncEnum.Version.Version37);
}
else if (buffer.SequenceEqual(Encoding.ASCII.GetBytes("RFB 003.008\n")))
{
return(VncEnum.Version.Version38);
}
// In rare cases, it may be a strange response, so if a_forceVersion is not Invalid, it is permitted if the beginning matches.
if (a_forceVersion != VncEnum.Version.None)
{
if (Encoding.ASCII.GetString(buffer).Contains("RFB 003"))
{
return(a_forceVersion);
}
}
throw new InvalidDataException($"Unknown version. Length = {buffer.Length} Text = [{Encoding.ASCII.GetString(buffer)}]");
}
public VncConfig(string a_address, int a_port, string a_password, VncEnum.Version a_forceVersion, VncEnum.EncodeType[] a_encodings, bool a_isColourSpecified, PixelFormat a_specifiedColour, bool a_isSendKeyboard, bool a_isSendPointer)
{
Address = a_address;
Port = a_port;
Password = a_password;
ForceVersion = a_forceVersion;
Encodings = a_encodings;
IsColourSpecified = a_isColourSpecified;
SpecifiedColour = a_specifiedColour;
IsSendKeyboard = a_isSendKeyboard;
IsSendPointer = a_isSendPointer;
}
public static VncEnum.SecurityResult ReadSecurityResult(Stream a_stream, VncEnum.Version a_vncVersion)
{
byte[] buffer = new byte[4];
a_stream.ReadAll(buffer, 0, buffer.Length);
UInt32 securityResult = BigEndianBitConverter.ToUInt32(buffer, 0);
if (securityResult == (UInt32)VncEnum.SecurityResult.Failed)
{
if (a_vncVersion == VncEnum.Version.Version33 ||
a_vncVersion == VncEnum.Version.Version37)
{
throw new SecurityException("SecurityResult is Failed.");
}
else
{
string str = readReasonString(a_stream);
throw new SecurityException($"SecurityResult is Failed. ({str})");
}
}
return((VncEnum.SecurityResult)securityResult);
}
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;
}
}