/* This file is part of the KDE libraries
Copyright (C) 1999 Mattias Ettrich (ettrich@kde.org)
Copyright (C) 1999,2000 Geert Jansen <jansen@kde.org>
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public License
along with this library; see the file COPYING.LIB. If not, write to
the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA.
*/
#ifndef __KIPC_h_Included__
#define __KIPC_h_Included__
/**
* 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.
*
* @author Geert Jansen <jansen@kde.org>
* @version $Id: kipc.h,v 1.11 2000/11/14 23:29:59 faure Exp $
*/
class KIPC
{
public:
enum Message { PaletteChanged=0, FontChanged, StyleChanged,
BackgroundChanged, SettingsChanged, IconChanged, ToolbarStyleChanged,
UserMessage=32 };
/**
* Send a message to a specific application.
*
* @param msg The message to send.
* @param w The window id of a toplevel window of the target application.
* @param data An optional integer of data.
*/
static void sendMessage(Message msg, WId w, int data=0);
/**
* Send a message to all KDE application on the current display.
*
* @param msg The message to send.
* @param data An optional integer of data.
*/
static void sendMessageAll(Message msg, int data=0);
};
#endif
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