# kdecore Library API Documentation

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# KIPC Class Reference

This class implements a very simple IPC mechanism for KDE. More...

`#include <kipc.h>`

List of all members.

## Public Types

enum | Message { PaletteChanged = 0, FontChanged, StyleChanged, BackgroundChanged, SettingsChanged, IconChanged, ToolbarStyleChanged, ClipboardConfigChanged, UserMessage = 32 }

## Static Public Member Functions

static void | sendMessage (Message msg, WId w, int data=0)
static void | sendMessageAll (Message msg, int data=0)

## Detailed Description

This class implements a very simple IPC mechanism for KDE.

You can send a message of a predefined type to either a specific application, or to all KDE application on the current display. The message can carry one integer of data.

KIPC is mainly used in KDE for sending "Change Messages", i.e. a message to all KDE apps that a certain setting (the font, for example) has changed. For anything more complex it is recommended to use DCOP -- the Desktop Communications Protocol.

Messages with id code < 32 are called "System Messages". These are directly handled by KApplication. Examples are: PaletteChanged and StyleChanged. Messages with id code >= 32 are user messages. KApplication emits the signal kipcMessage(id,arg) for each user message it receives.

KIPC is implemented using X11 ClientMessage events.

See also:
  KApplication::kipcMessage()

Author:
  Geert Jansen <jansen@kde.org>

Definition at line 49 of file kipc.h.

## Member Enumeration Documentation

enum KIPC::Message

A identifier for messages.

Messages below UserMessage are system messages, messages above can be defined by the user.

Enumeration values:

  UserMessage

  Since:
    3.1

Definition at line 56 of file kipc.h.

## Member Function Documentation

void KIPC::sendMessage | ( | Message | msg,
|  | WId | w,
|  | int | data = `0`
| ) | `[static]`

Send a message to a specific application.

Parameters:

  | msg | The message to send.
  | w | The window id of a toplevel window of the target application.
  | data | An optional integer of data.

Definition at line 59 of file kipc.cpp.

Referenced by sendMessageAll().

void KIPC::sendMessageAll | ( | Message | msg,
|  | int | data = `0`
| ) | `[static]`

Send a message to all KDE application on the current display.

Parameters:

  | msg | The message to send.
  | data | An optional integer of data.

Definition at line 88 of file kipc.cpp.

References sendMessage().

The documentation for this class was generated from the following files:

- kipc.h
- kipc.cpp

This file is part of the documentation for kdecore Library Version 3.4.1.
Documentation copyright © 1996-2004 the KDE developers.
Generated on Sat Jun 11 20:18:42 2005 by doxygen 1.4.1 written by Dimitri van Heesch, © 1997-2003