Automatic Connections: using Qt signals and slots the easy… Digia, Qt and their respective logos are trademarks of Digia Plc in Finland and/or other countriesBack in the old days, signals and slots connections were set up for compile timethis is, we stated the sender object's name, the signal we want to connect, the receiver object's name and the slot to... Multithreading - Qt send signal to different thread Tag: multithreading,qt,signals,slot. I have searched SO for this question, but they were a bit different than mine.When the signal is emited, i get: ASSERT failure in QCoreApplication::sendEvent: "Cannot send events to objects owned by a different thread. Сигналы и слоты в Qt: установка, особенности работы,… Qt сигналы и слоты помогают включить ориентированную на событие функцию в графические пользовательские интерфейсы приложений.Сигналы и слоты сделали Qt увлекательным и инновационным инструментом. Это метод, в которым «один объект» гарантирует, что когда...
qt сигналы и слоты -> Форум на Исходниках.Ру
The only way is to pass that info as a signal/slot parameter. It goes against the design of signals/slots to do so though. Receiver should not have to know anything about the sender, and, in particular, there might not be a sender at all if the slot was called directly. c++ - Qt: Signal main thread - Stack Overflow I can emit from this thread, but only if I connect the slot using Qt::DirectConnection. The upshot is that QObject::sender() in the SLOT will always return NULL. I wish to call deleteLater() for instance, but that can only be scheduled in a QThread. I think I need to get back to the main thread, but how can I signal the object on the main thread? Reasons for signal/slot connection with sender == receiver ... Also by passing Qt::QueuedConnection, you enforce the event to go through the event loop, which isn't necessary in most cases (think also copying of the slot's arguments), and furthermore it may cause out of order execution in your emitting object in some rare cases (i.e. when there's a lot of ping-ponging of signals and slots).
c++ - QRunnable emit signal and get sender from slot ...
Qt 5 continues to support the old string-based syntax for connecting signals and slots defined in a QObject or any class that inherits from QObject (including QWidget) connect( sender, SIGNAL( valueChanged( QString, QString ) ), receiver, SLOT( updateValue( QString ) ) ); c++ - QRunnable emit signal and get sender from slot ... QRunnable is destroyed by QThreadPool after it finishes. When I emit a signal from it and try to get the QRunnable object from slot using sender() it's NULL. How Qt Signals and Slots Work - Woboq
c++ - QRunnable emit signal and get sender from slot ...
c++ - Qt Slots and C++11 lambda - Stack Overflow Try Stack Overflow for Business. Our new business plan for private Q&A offers single sign-on and advanced features. Get started by May 31 for 2 months free. c++ - Qt: Signal main thread - Stack Overflow
Qt сигналы и слоты помогают включить ориентированную на событие функцию в графические пользовательские интерфейсы приложений.Сигналы и слоты сделали Qt увлекательным и инновационным инструментом. Это метод, в которым «один объект» гарантирует, что когда...
Threads Events QObjects - Qt Wiki Qt has had thread support for many years (Qt 2.2, released on 22 Sept 2000, introduced the QThread class.), and with the 4.0 release thread support is enabled by default on all supported platforms (although it can be turned off, see here for more details). Qt now offers several classes for dealing with threads; let's start with an overview. QThread qt - Can I have one slot for several signals? - Stack Overflow
GitHub - wisoltech/qt-signal-slot: Connect QML to C++ with ... Connect QML to C++ with signals and slots. Contribute to wisoltech/qt-signal-slot development by creating an account on GitHub. Threads Events QObjects - Qt Wiki