C# Class VncSharpWpf.RfbProtocol

Contains methods and properties to handle all aspects of the RFB Protocol versions 3.3 - 3.8.

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Public Properties

Property	Type	Description
FailedToListen	EventHandler

Protected Properties

Property	Type	Description
reader	System.IO.BinaryReader
stream	NetworkStream
tcpClient	System.Net.Sockets.TcpClient
tcpListener	System.Net.Sockets.TcpListener
verMajor	int
verMinor	int
writer	System.IO.BinaryWriter
zrleReader	ZRLECompressedReader

Public Methods

Method	Description
Close ( ) : void	Closes the connection to the remote host.
Connect ( string host, int port ) : void	Attempt to connectFromClient to a remote VNC Host.
Listen ( string host, int port ) : void	Start to Listen.
ReadByte ( ) : byte	Reads a single Byte value from the server.
ReadBytes ( int count ) : byte[]	Reads the specified number of bytes from the server, taking care of Big- to Little-Endian conversion.
ReadColourMapEntry ( ) : void	Reads 8-bit RGB colour values (or updated values) into the colour map. See RFB Doc v. 3.8 section 6.5.2.
ReadFramebufferUpdate ( ) : int	Reads the number of update rectangles being sent by the server. See RFB Doc v. 3.8 section 6.4.1.
ReadFramebufferUpdateRectHeader ( Rectangle &rectangle, int &encoding ) : void	Reads a rectangle's header information, including its encoding. See RFB Doc v. 3.8 section 6.4.1.
ReadProtocolVersion ( ) : void	Reads VNC Host Protocol Version message (see RFB Doc v. 3.8 section 6.1.1)
ReadSecurityChallenge ( ) : byte[]	When the server uses Security Type 2 (i.e., VNC Authentication), a Challenge/Response mechanism is used to authenticate the user. See RFB Doc v. 3.8 section 6.1.2 and 6.2.2.
ReadSecurityFailureReason ( ) : string	If the server has rejected the connection during Authentication, a reason is given. See RFB Doc v. 3.8 section 6.1.2.
ReadSecurityResult ( ) : uint	When the server uses VNC Authentication, after the Challege/Response, the server sends a status code to indicate whether authentication worked. See RFB Doc v. 3.8 section 6.1.3.
ReadSecurityTypes ( ) : byte[]	Determine the type(s) of authentication that the server supports. See RFB Doc v. 3.8 section 6.1.2.
ReadServerCutText ( ) : string	Reads the text from the Cut Buffer on the server. See RFB Doc v. 3.8 section 6.4.4.
ReadServerInit ( ) : Framebuffer	Reads the server's Initialization message, specifically the remote Framebuffer's properties. See RFB Doc v. 3.8 section 6.1.5.
ReadServerMessageType ( ) : int	Reads the type of message being sent by the server--all messages are prefixed with a message type.
ReadUInt16 ( ) : ushort	Reads a single UInt16 value from the server, taking care of Big- to Little-Endian conversion.
ReadUint32 ( ) : uint	Reads a single UInt32 value from the server, taking care of Big- to Little-Endian conversion.
RfbProtocol ( ) : System
StopListen ( ) : void	Stop Listening.
WriteByte ( byte value ) : void	Writes a single Byte value to the server.
WriteClientCutText ( string text ) : void	Sends text in the client's Cut Buffer to the server. See RFB Doc v. 3.8 section 6.3.7.
WriteClientInitialisation ( bool shared ) : void	Sends an Initialisation message to the server. See RFB Doc v. 3.8 section 6.1.4.
WriteFramebufferUpdateRequest ( ushort x, ushort y, ushort width, ushort height, bool incremental ) : void	Sends a request for an update of the area specified by (x, y, w, h). See RFB Doc v. 3.8 section 6.3.4.
WriteKeyEvent ( uint keysym, bool pressed ) : void	Sends a key press or release to the server. See RFB Doc v. 3.8 section 6.3.5.
WritePointerEvent ( byte buttonMask, Point point ) : void	Sends a mouse movement or button press/release to the server. See RFB Doc v. 3.8 section 6.3.6.
WriteProtocolVersion ( ) : void	Send the Protocol Version supported by the client. Will be highest supported by server (see RFB Doc v. 3.8 section 6.1.1).
WriteSecurityResponse ( byte response ) : void	Sends the encrypted Response back to the server. See RFB Doc v. 3.8 section 6.1.2.
WriteSecurityType ( byte type ) : void	Indicate to the server which type of authentication will be used. See RFB Doc v. 3.8 section 6.1.2.
WriteSetEncodings ( uint encodings ) : void	Tell the server which encodings are supported by the client. See RFB Doc v. 3.8 section 6.3.3.
WriteSetPixelFormat ( Framebuffer buffer ) : void	Sends the format to be used by the server when sending Framebuffer Updates. See RFB Doc v. 3.8 section 6.3.1.
WriteUInt16 ( ushort value ) : void	Writes a single UInt16 value to the server, taking care of Little- to Big-Endian conversion.
WriteUint32 ( uint value ) : void	Writes a single UInt32 value to the server, taking care of Little- to Big-Endian conversion.

Protected Methods

Method	Description
GetBytes ( string text ) : byte[]	Converts a string to bytes for transfer to the server.
GetString ( byte bytes ) : string	Converts a series of bytes to a string.
ReadPadding ( int length ) : void	Reads the specified number of bytes of padding (i.e., garbage bytes) from the server.
WritePadding ( int length ) : void	Writes the specified number of bytes of padding (i.e., garbage bytes) to the server.

Private Methods

Method	Description
ListenCore ( ) : void	Function for Listening Thread.
SetStreams ( ) : void	Set Streams to valiables.

Method Details

Close() public method

Closes the connection to the remote host.

public Close ( ) : void
return	void

Connect() public method

Attempt to connectFromClient to a remote VNC Host.

public Connect ( string host, int port ) : void
host	string	The IP Address or Host Name of the VNC Host.
port	int	The Port number on which to connectFromClient. Usually this will be 5900, except in the case that the VNC Host is running on a different Display, in which case the Display number should be added to 5900 to determine the correct port.
return	void

GetBytes() protected static method

Converts a string to bytes for transfer to the server.

protected static GetBytes ( string text ) : byte[]
text	string	The text to be converted to bytes.
return	byte[]

GetString() protected static method

Converts a series of bytes to a string.

protected static GetString ( byte bytes ) : string
bytes	byte	The Array of Bytes to be converted to a string.
return	string

Listen() public method

Start to Listen.

public Listen ( string host, int port ) : void
host	string
port	int
return	void

ReadByte() public method

Reads a single Byte value from the server.

public ReadByte ( ) : byte
return	byte

ReadBytes() public method

Reads the specified number of bytes from the server, taking care of Big- to Little-Endian conversion.

public ReadBytes ( int count ) : byte[]
count	int	The number of bytes to be read.
return	byte[]

ReadColourMapEntry() public method

Reads 8-bit RGB colour values (or updated values) into the colour map. See RFB Doc v. 3.8 section 6.5.2.

public ReadColourMapEntry ( ) : void
return	void

ReadFramebufferUpdate() public method

Reads the number of update rectangles being sent by the server. See RFB Doc v. 3.8 section 6.4.1.

public ReadFramebufferUpdate ( ) : int
return	int

ReadFramebufferUpdateRectHeader() public method

Reads a rectangle's header information, including its encoding. See RFB Doc v. 3.8 section 6.4.1.

public ReadFramebufferUpdateRectHeader ( Rectangle &rectangle, int &encoding ) : void
rectangle	System.Drawing.Rectangle	The geometry of the rectangle that is about to be sent.
encoding	int	The encoding used for this rectangle.
return	void

ReadPadding() protected method

Reads the specified number of bytes of padding (i.e., garbage bytes) from the server.

protected ReadPadding ( int length ) : void
length	int	The number of bytes of padding to read.
return	void

ReadProtocolVersion() public method

Reads VNC Host Protocol Version message (see RFB Doc v. 3.8 section 6.1.1)

Thrown if the version of the host is not known or supported.

public ReadProtocolVersion ( ) : void
return	void

ReadSecurityChallenge() public method

When the server uses Security Type 2 (i.e., VNC Authentication), a Challenge/Response mechanism is used to authenticate the user. See RFB Doc v. 3.8 section 6.1.2 and 6.2.2.

public ReadSecurityChallenge ( ) : byte[]
return	byte[]

ReadSecurityFailureReason() public method

If the server has rejected the connection during Authentication, a reason is given. See RFB Doc v. 3.8 section 6.1.2.

public ReadSecurityFailureReason ( ) : string
return	string

ReadSecurityResult() public method

When the server uses VNC Authentication, after the Challege/Response, the server sends a status code to indicate whether authentication worked. See RFB Doc v. 3.8 section 6.1.3.

public ReadSecurityResult ( ) : uint
return	uint

ReadSecurityTypes() public method

Determine the type(s) of authentication that the server supports. See RFB Doc v. 3.8 section 6.1.2.

public ReadSecurityTypes ( ) : byte[]
return	byte[]

ReadServerCutText() public method

Reads the text from the Cut Buffer on the server. See RFB Doc v. 3.8 section 6.4.4.

public ReadServerCutText ( ) : string
return	string

ReadServerInit() public method

Reads the server's Initialization message, specifically the remote Framebuffer's properties. See RFB Doc v. 3.8 section 6.1.5.

public ReadServerInit ( ) : Framebuffer
return	Framebuffer

ReadServerMessageType() public method

Reads the type of message being sent by the server--all messages are prefixed with a message type.

public ReadServerMessageType ( ) : int
return	int

ReadUInt16() public method

Reads a single UInt16 value from the server, taking care of Big- to Little-Endian conversion.

public ReadUInt16 ( ) : ushort
return	ushort

ReadUint32() public method

Reads a single UInt32 value from the server, taking care of Big- to Little-Endian conversion.

public ReadUint32 ( ) : uint
return	uint

RfbProtocol() public method

public RfbProtocol ( ) : System
return	System

StopListen() public method

Stop Listening.

public StopListen ( ) : void
return	void

WriteByte() public method

Writes a single Byte value to the server.

public WriteByte ( byte value ) : void
value	byte	The UInt32 value to be written.
return	void

WriteClientCutText() public method

Sends text in the client's Cut Buffer to the server. See RFB Doc v. 3.8 section 6.3.7.

public WriteClientCutText ( string text ) : void
text	string	The text to be sent to the server.
return	void

WriteClientInitialisation() public method

Sends an Initialisation message to the server. See RFB Doc v. 3.8 section 6.1.4.

public WriteClientInitialisation ( bool shared ) : void
shared	bool	True if the server should allow other clients to connectFromClient, otherwise False.
return	void

WriteFramebufferUpdateRequest() public method

Sends a request for an update of the area specified by (x, y, w, h). See RFB Doc v. 3.8 section 6.3.4.

public WriteFramebufferUpdateRequest ( ushort x, ushort y, ushort width, ushort height, bool incremental ) : void
x	ushort	The x-position of the area to be updated.
y	ushort	The y-position of the area to be updated.
width	ushort	The width of the area to be updated.
height	ushort	The height of the area to be updated.
incremental	bool	Indicates whether only changes to the client's data should be sent or the entire desktop.
return	void

WriteKeyEvent() public method

Sends a key press or release to the server. See RFB Doc v. 3.8 section 6.3.5.

public WriteKeyEvent ( uint keysym, bool pressed ) : void
keysym	uint	The value of the key pressed, expressed using X Window "keysym" values.
pressed	bool
return	void

WritePadding() protected method

Writes the specified number of bytes of padding (i.e., garbage bytes) to the server.

protected WritePadding ( int length ) : void
length	int	The number of bytes of padding to write.
return	void

WritePointerEvent() public method

Sends a mouse movement or button press/release to the server. See RFB Doc v. 3.8 section 6.3.6.

public WritePointerEvent ( byte buttonMask, Point point ) : void
buttonMask	byte	A bitmask indicating which button(s) are pressed.
point	Point	The location of the mouse cursor.
return	void

WriteProtocolVersion() public method

Send the Protocol Version supported by the client. Will be highest supported by server (see RFB Doc v. 3.8 section 6.1.1).

public WriteProtocolVersion ( ) : void
return	void

WriteSecurityResponse() public method

Sends the encrypted Response back to the server. See RFB Doc v. 3.8 section 6.1.2.

public WriteSecurityResponse ( byte response ) : void
response	byte	The DES password encrypted challege sent by the server.
return	void

WriteSecurityType() public method

Indicate to the server which type of authentication will be used. See RFB Doc v. 3.8 section 6.1.2.

public WriteSecurityType ( byte type ) : void
type	byte	The type of Authentication to be used, 1 (None) or 2 (VNC Authentication).
return	void

WriteSetEncodings() public method

Tell the server which encodings are supported by the client. See RFB Doc v. 3.8 section 6.3.3.

public WriteSetEncodings ( uint encodings ) : void
encodings	uint	An array of integers indicating the encoding types supported. The order indicates preference, where the first item is the first preferred.
return	void

WriteSetPixelFormat() public method

Sends the format to be used by the server when sending Framebuffer Updates. See RFB Doc v. 3.8 section 6.3.1.

public WriteSetPixelFormat ( Framebuffer buffer ) : void
buffer	Framebuffer	A Framebuffer telling the server how to encode pixel data. Typically this will be the same one sent by the server during initialization.
return	void

WriteUInt16() public method

Writes a single UInt16 value to the server, taking care of Little- to Big-Endian conversion.

public WriteUInt16 ( ushort value ) : void
value	ushort	The UInt16 value to be written.
return	void

WriteUint32() public method

Writes a single UInt32 value to the server, taking care of Little- to Big-Endian conversion.

public WriteUint32 ( uint value ) : void
value	uint	The UInt32 value to be written.
return	void

Property Details

FailedToListen public_oe property

Raised when Failed To Listen.

public EventHandler FailedToListen
return	EventHandler

reader protected_oe property

protected BinaryReader,System.IO reader
return	System.IO.BinaryReader

stream protected_oe property

protected NetworkStream stream
return	NetworkStream

tcpClient protected_oe property

protected TcpClient,System.Net.Sockets tcpClient
return	System.Net.Sockets.TcpClient

tcpListener protected_oe property

protected TcpListener,System.Net.Sockets tcpListener
return	System.Net.Sockets.TcpListener

verMajor protected_oe property

protected int verMajor
return	int

verMinor protected_oe property

protected int verMinor
return	int

writer protected_oe property

protected BinaryWriter,System.IO writer
return	System.IO.BinaryWriter

zrleReader protected_oe property

protected ZRLECompressedReader zrleReader
return	ZRLECompressedReader