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authortoma <toma@283d02a7-25f6-0310-bc7c-ecb5cbfe19da>2009-11-25 17:56:58 +0000
committertoma <toma@283d02a7-25f6-0310-bc7c-ecb5cbfe19da>2009-11-25 17:56:58 +0000
commitce4a32fe52ef09d8f5ff1dd22c001110902b60a2 (patch)
tree5ac38a06f3dde268dc7927dc155896926aaf7012 /kdecore/kipc.h
downloadtdelibs-ce4a32fe52ef09d8f5ff1dd22c001110902b60a2.tar.gz
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Copy the KDE 3.5 branch to branches/trinity for new KDE 3.5 features.
BUG:215923 git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/kdelibs@1054174 283d02a7-25f6-0310-bc7c-ecb5cbfe19da
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+/* 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., 51 Franklin Street, Fifth Floor,
+ Boston, MA 02110-1301, USA.
+*/
+
+#ifndef __KIPC_h_Included__
+#define __KIPC_h_Included__
+
+#include <qwindowdefs.h>
+#include "kdelibs_export.h"
+
+/**
+ * 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 KApplication::kipcMessage()
+ * @author Geert Jansen <jansen@kde.org>
+ */
+class KDECORE_EXPORT KIPC
+{
+public:
+ /**
+ * A identifier for messages. Messages below UserMessage are system
+ * messages, messages above can be defined by the user.
+ */
+ enum Message { PaletteChanged=0, FontChanged, StyleChanged,
+ BackgroundChanged, SettingsChanged, IconChanged, ToolbarStyleChanged,
+ ClipboardConfigChanged, /// @since 3.1
+ BlockShortcuts, /// @since 3.5
+ 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