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- Qt Connect Class Slots To Designer Signals
- Qt Signal Slot Example
- Qt Signal Slot
- Qthread Signal Slot
- Qt Connect Signal Slot Thread Tool
Qt Connect Class Slots To Designer Signals
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C Qt 28 - QThread part 1 creating a thread - Duration. Python GUI Development with Qt - QtDesigner's Signal-Slot Editor. QT connect signal to slot - Duration. You may use Qt Signals & Slots or use the invokeInContext function Signals & Slots mechanism of this framework. The first example in src/examples/one/ covers all of that. The second example in src/examples/two/ focuses only on the Signals & Slots system of this framework.
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Qt Signal Slot
Qthread Signal Slot
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| /* |
| Copyright 2013 Fabien Pierre-Nicolas. |
| - Primarily authored by Fabien Pierre-Nicolas |
| This file is part of simple-qt-thread-example, a simple example to demonstrate how to use threads. |
| This example is explained on http://fabienpn.wordpress.com/qt-thread-simple-and-stable-with-sources/ |
| This program is free software: you can redistribute it and/or modify |
| it under the terms of the GNU General Public License as published by |
| the Free Software Foundation, either version 3 of the License, or |
| (at your option) any later version. |
| This progra 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 General Public License for more details. |
| You should have received a copy of the GNU General Public License |
| along with this program. If not, see <http://www.gnu.org/licenses/>. |
| */ |
| #include'mainwindow.h' |
| #include'ui_mainwindow.h' |
| #include<QDebug> |
| MainWindow::MainWindow(QWidget *parent) : |
| QMainWindow(parent), |
| ui(new Ui::MainWindow) |
| { |
| ui->setupUi(this); |
| // The thread and the worker are created in the constructor so it is always safe to delete them. |
| thread = newQThread(); |
| worker = newWorker(); |
| worker->moveToThread(thread); |
| connect(worker, SIGNAL(valueChanged(QString)), ui->label, SLOT(setText(QString))); |
| connect(worker, SIGNAL(workRequested()), thread, SLOT(start())); |
| connect(thread, SIGNAL(started()), worker, SLOT(doWork())); |
| connect(worker, SIGNAL(finished()), thread, SLOT(quit()), Qt::DirectConnection); |
| } |
| MainWindow::~MainWindow() |
| { |
| worker->abort(); |
| thread->wait(); |
| qDebug()<<'Deleting thread and worker in Thread '<<this->QObject::thread()->currentThreadId(); |
| delete thread; |
| delete worker; |
| delete ui; |
| } |
| voidMainWindow::on_startButton_clicked() |
| { |
| // To avoid having two threads running simultaneously, the previous thread is aborted. |
| worker->abort(); |
| thread->wait(); // If the thread is not running, this will immediately return. |
| worker->requestWork(); |
| } |
Qt Connect Signal Slot Thread Tool
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