Qt signals slots return value

By Mark Zuckerberg

Qt Signals - это синтаксический сахаризованный интерфейс для шаблона сигнализации. Слоты являются получателями сигнала. В прямом соединении с сигналом-слотом вы можете думать о нем аналогично (псевдокоду): Foreach slot in connectedSlotsForSignal(signal): value = invoke slot...

Technical FAQ - Qt Wiki See the documentation http://doc.qt.io/qt-5/threads-qobject.html#signals-and-slots-across-threads QQuickView Class | Qt Quick 5.12 The QQuickView class provides a window for displaying a Qt Quick user interface. More... Model/View Programming | Qt Widgets 5.12.3 Qt ::ItemFlags StringListModel ::flags( const QModelIndex &index) const { if ( !index .isValid()) return Qt ::ItemIsEnabled; return QAbstractItemModel ::flags(index) | Qt ::ItemIsEditable; } The Independent Qt Tutorial - Chapter 2

Since the value is changed directly, this bypasses Qt's meta-object system and the QML engine is not made aware of the property change.

void Counter::setValue(int value) { if (value != m_value) ... When this happens, the signals and slots mechanism is totally ... Execution of the code following the emit statement will occur once all slots have returned. Signals and slots - BlackBerry Native 7 May 2015 ... For more detailed information, see Signals & Slots on the Qt website. .... The connect() function returns a Boolean value that indicates whether ...

Connecting QML Signals in PySide - Qt Wiki

I'm doing this by connecting up signals and slots for the methods. However now I need to Stack Overflow new. ... QT return value from a signal? ... And finally at one point in my application I want to query the SQLite db for some info and receive a return value: (still inside MainWindow) c++ - Qt - Return value when signal is emitted? - Stack

PySide/PyQt Tutorial: Creating Your Own Signals and Slots ...

Jan 11, 2004 ... Unfortunately Qt Signal/Slots are not really well integrated into the language. ... newValue) { qDebug("The Counter changed, new value is %d. ... It has exactly the same syntax as a regular delegate, but the return type of the ... QtConcurrent QProgressDialog with QFutureWatcher - BogoToBogo We've already used this to get the return value from QtConcurrent::run() in our ... ://www.bogotobogo.com/Qt/Qt5_QtConcurrent_RunFunction_QThread.php" ... The QFutureWatcher class allows us to monitor a QFuture using signals and slots. Effective Threading Using Qt - John's Blog