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77 lines
3.3 KiB
Plaintext
77 lines
3.3 KiB
Plaintext
/****************************************************************************
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**
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** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
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** Contact: http://www.qt-project.org/legal
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**
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** This file is part of the Qt Solutions component.
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**
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** $QT_BEGIN_LICENSE:BSD$
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** You may use this file under the terms of the BSD license as follows:
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**
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** "Redistribution and use in source and binary forms, with or without
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** modification, are permitted provided that the following conditions are
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** met:
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** * Redistributions of source code must retain the above copyright
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** notice, this list of conditions and the following disclaimer.
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** * Redistributions in binary form must reproduce the above copyright
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** notice, this list of conditions and the following disclaimer in
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** the documentation and/or other materials provided with the
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** distribution.
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** * Neither the name of Digia Plc and its Subsidiary(-ies) nor the names
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** of its contributors may be used to endorse or promote products derived
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** from this software without specific prior written permission.
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**
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**
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** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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/*! \page qtsingleapplication-example-trivial.html
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\title A Trivial Example
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The application in this example has a log-view that displays
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messages sent by further instances of the same application.
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The example demonstrates the use of the QtSingleApplication
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class to detect and communicate with a running instance of
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the application using the sendMessage() API. The messageReceived()
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signal is used to display received messages in a QTextEdit log.
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\quotefromfile trivial/main.cpp
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\printuntil instance
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The example has only the \c main entry point function.
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A QtSingleApplication object is created immediately.
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\printuntil return
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If another instance of this application is already running,
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sendMessage() will succeed, and this instance just exits
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immediately.
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\printuntil show()
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Otherwise the instance continues as normal and creates the
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user interface.
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\printuntil return instance.exec();
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The \c logview object is also set as the application's activation
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window. Every time a message is received, the window will be raised
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and activated automatically.
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The messageReceived() signal is also connected to the QTextEdit's
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append() slot. Every message received from further instances of
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this application will be displayed in the log.
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Finally the event loop is entered.
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*/
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