Qt signal slot get caller

Using Qt:DirectConnection when receiver object doesn't receive signal

Automatic Connections: using Qt signals and slots the easy… One key and distinctive feature of Qt framework is the use of signals and slots to connect widgets and related actions. But as powerful the feature is, it may look compelling to a lot of developers not used to such a model... Qt Tutorials For Beginners - Qt Signal and slots Understanding Signals and Slot in Qt.In this tutorial we will learn How to use signal and slots in qt. File->New File or Project… QT signal slot is not working (C++) - Codedump.io Griffin - 2 years ago 292. C++ Question. QT signal slot is not working. I am facing a strange problem while trying to execute the following program.When I try to executed the program, the slot is not getting invoked? if I put moveToThraed(), then the code will work but that won't serve my puprose.

QT signal slot is not working (C++) - Codedump.io

Wiring up signals and slots [Mithat Konar (the wiki)] 3 Apr 2011 ... Qt uses a signals and slots system to process events. ... you will notice that when you roll over widgets, they turn red and get a thick border. qt4 - How to get sender widget with a signal/slot ... It's possible to bind more than one signal to one slot (isn't?). So, is there a way to understand which widget sends the signal? How to get sender widget with a signal/slot mechanism? Ask Question 52. 8. QT Signal Slot Question. 1. How to avoid

QT Signal / Slot. Tag: c++,qt,qmake,qtgui,qt-signals. I've got question about signal slot. In my app i want connect signal from one object to textEdit in dialog window. My signal emits a QString, if i ruin encapsulation (by making ui public instead of private) and connect signal directly to textEdit it works.

How Qt Signals and Slots Work - Part 3 - Queued and Inter ... DirectConnection: call the slot as seen in Part 1 */ So in this blog post we will see what exactly happens in queued_activate and other parts that were skipped for the BlockingQueuedConnection. Qt Event Loop. A QueuedConnection will post an event to the event loop to eventually be handled. Qt - Call QML in C++ | qt Tutorial Now you have your QML object in your C++. But that could seems useless since we cannot really get the components of the object. However, we can use it to send signals between the QML and the C++. To do that, you need to add a signal in your QML file like that: signal buttonClicked(string str). Once you create this, you need to emit the signal. Qt meta-object Programming - CodeProject You can find it using Qt's framework and get a pointer to it (search by name, or name and type/subtype). You can use Qt's meta-object data to ask about its type (as a string), or ask which calls it supports. That means you can then dynamically find, and get call signatures and through Qt's signals/slots, invoke via text an object.

Как использовать сигналы-слоты? В общем не могу понять как сделать. Было бы неплохо, если бы Вы показали на этом примере как реализовать.Макросы SIGNAL и SLOT устарели и лучше их не использовать (сложный синтаксис, при несовпадении типов жалуется в консоль).

retrieving signal name in a slot - Qt Centre 10 Nov 2008 ... By invocation of this slot I want to retrieve the object name, the class name and the ... The object name is simply retrievable by QObject::sender()->objectName() The class name is ... But I don't know how to get the signal name. QObject Class | Qt Core | Qt Documentation (Pro) - Felgo

Why I dislike Qt signals/slots

QT: работаем с сигналами и слотами QT: работаем с сигналами и слотами. Этот "классический" слегка доработанный пример на сигналы и слоты в QT показывает, как их соединятьreceiver — указатель на объект, который имеет слот для обработки сигнала; slot — слот, который вызывается при получении сигнала. Qt bug? Signal emitted once, slot called multiple times The slot does time-critical inter-process communication via socket connections, so this is pretty debilitating. Here's the signal: class MyClasswhere thd is the instance of MyWorkerThread. Now the slot is just getting called once. I'd still like to know what's going on in the first place though. Qt Signals and Slots

Manage connections between VTK events and Qt slots. vtkEventQtSlotConnect provides a way to manage connections between VTK events and Qt slots.