For more help you can see the xchat plugin interface documentation.
http://www.xchat.org/docs/plugin20.html
WARNING: The dbus interface may change in the future.

You can use the "/org/xchat/Remote" object with interface "org.xchat.plugin",
but his context can be changed by other clients at any moment and
you may receive signal asked by other clients. So for more complex usage it's
better to get your own remote object. Using "Connect" method on interface
"org.xchat.connection"

Available methods on org.xchat.connection interface:

"Connect"
  - Parameters:
    - gchar*: filename
    - gchar*: name
    - gchar*: description
    - gchar*: version
  - Returns:
    - gchar*: Your own object's path.

"Disconnect"
  No parameter, no return value. It frees your remote object.

Available methods on org.xchat.plugin interface:

"Command"
  - Parameters:
    - gchar*: the command name without the "/". (e.g. "nick pseudo")

"Print"
  - Parameters:
    - gchar*: text to print on the xchat window.

"FindContext"
  - Parameters:
    - gchar*: the server name. Can be NULL.
    - gchar*: the channel name. Can be NULL.
  - Returns:
    - guint: context ID

"GetContext"
  - Returns:
    - guint: current context's ID

"SetContext"
  - Parameters:
    - guint: context ID to switch, returned by "FindContext" or "GetContext"
  - Returns:
    - gboolean: 1 for success, 0 for failure.

"GetInfo"
  - Parameters:
    - gchar*: ID of the information you want.
  - Returns:
    - gchar*: information you requested.

"GetPrefs"
  - Parameters:
    - gchar*: Setting name required.
  - Returns:
    - int: 0-Failed 1-Returned a string 2-Returned an Integer
           3-Returned a Boolean.
    - gchar*: the information requested if it's a string.
    - int: the information requested if it's a integer or boolean.

"HookCommand"
  - Parameters:
    - gchar*: Name of the command (without the forward slash).
    - int: Priority of this command.
    - gchar*: String of text to display when the user executes /help
              for this command. May be NULL if you're lazy.
    - int: Value to returns when the command is catched. See XCHAT_EAT_*.
  - Returns:
    - guint: The ID of the hook.

"HookServer"
  - Parameters:
    - gchar*: Name of the server event.
    - int: Priority of this command.
    - int: Value to returns when the command is catched. See XCHAT_EAT_*.
  - Returns:
    - guint: The ID of the hook.

"HookPrint"
  - Parameters:
    - gchar*: Name of the print event.
    - int: Priority of this command.
    - int: Value to returns when the command is catched. See XCHAT_EAT_*.
  - Returns:
    - guint: The ID of the hook.

"Unhook"
  - Parameters:
    - guint: ID of the hook to unhook.
      (the return value of "HookCommand", "HookServer" or "HookPrint")

"ListGet"
  - Parameters:
    - gchar*: The list name.
  - Returns:
    - guint: List ID.

"ListNext"
  - Parameters:
    - guint: List ID returned by "ListGet".
  - Returns:
    - gboolean: says if there is no more item in the list.

"ListStr"
  - Parameters:
    - guint: List ID returned by "ListGet".
    - gchar*: Name of the information needed.
  - Returns:
    - gchar*: The information requested.
Warning: "context" attribut of "channels" list should be get with "ListInt"

"ListInt"
  - Parameters:
    - guint: List ID returned by "ListGet".
    - gchar*: Name of the information needed.
  - Returns:
    - guint: The information requested.

"ListTime"
  - Parameters:
    - guint: List ID returned by "ListGet".
    - gchar*: Name of the information needed.
  - Returns:
    - guint64: The information requested.

"ListFields"
  - Parameters:
    - gchar*: The list name.
  - Returns:
    - gchar**: information names in this list.

"ListFree"
  - Parameters:
    - guint: List ID returned by "ListGet".

"EmitPrint"
  - Parameters:
    - gchar*: Text event to print.
    - gchar**: NULL terminated array of string.
  - Returns:
    - gboolean: 1-Success 0-Failure.

"Nickcmp"
  - Parameters:
    - gchar*: String to compare.
    - gchar*: String to compare.
  - Returns:
    - int: An integer less than, equal to, or greater than zero if s1 is found,
           respectively, to be less than, to match, or be greater than s2. 

"Strip"
  - Parameters:
    - gchar*: String to strip.
    - int: Length of the string (or -1 for NULL terminated).
    - int: Bit-field of flags: 0-Strip mIRC colors, 1-Strip text attributes. 
  - Returns:
    - gchar*: striped string.

"SendModes"
  - Parameters:
    - gchar**: NULL terminated array of targets (strings). The names of people
               whom the action will be performed on.
    - int: Maximum modes to send per line.
    - gchar: Mode sign, '-' or '+'.
    - gchar: Mode char, e.g. 'o' for Ops.


Available signals:

"ServerSignal"
  - Parameters:
    - gchar**: word returned by xchat.
    - gchar**: word_eol returned bu xchat.
    - guint: the ID of the hook. (the return value of "HookServer").
    - guint: the ID of the context where the event come from.

"CommandSignal"
  - Parameters:
    - gchar**: word returned by xchat.
    - gchar**: word_eol returned bu xchat.
    - guint: the ID of the hook. (the return value of "HookCommand").
    - guint: the ID of the context where the event come from.

"PrintSignal"
  - Parameters:
    - gchar**: word returned by xchat.
    - guint: the ID of the hook. (the return value of "HookPrint").
    - guint: the ID of the context where the event come from.

"UnloadSignal"
  emited when the user asks to unload your program.
  Please exit(0); when received !