New Signal Slot Syntax - Qt Wiki Connecting in Qt 5. There are several ways to connect a signal in Qt 5. Old syntax. 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) Signals & Slots | Qt Core 5.12.3 Signals and slots are loosely coupled: A class which emits a signal neither knows nor cares which slots receive the signal. Qt's signals and slots mechanism ensures that if you connect a signal to a slot, the slot will be called with the signal's parameters at the right time. Signals and slots can take any number of arguments of any type. They are completely type safe. QObject Class | Qt Core 5.12.3 Detailed Description. The QObject class is the base class of all Qt objects. QObject is the heart of the Qt Object Model. The central feature in this model is a very powerful mechanism for seamless object communication called signals and slots. Signals and slots Connect | Qt Forum
connect signal from subclass to father's slot | Qt Forum
Signals & Slots — Qt for Python Signals and slots are loosely coupled: A class which emits a signal neither knows nor cares which slots receive the signal. Qt’s signals and slots mechanism ensures that if you connect a signal to a slot, the slot will be called with the signal’s parameters at the right time. Signals and slots can take any number of arguments of any type. Qt for Python Signals and Slots - Qt Wiki Traditional syntax: SIGNAL and SLOT() QtCore.SIGNAL() and QtCore.SLOT() macros allow Python to interface with Qt signal and slot delivery mechanisms. This is the old way of using signals and slots. The example below uses the well known clicked signal from a QPushButton.The connect method has a non python-friendly syntax.
Signals and slots are loosely coupled: a class which emits a signal neither knows nor cares which slots receive the signal. Qt's signals and slots mechanism ensures that if you connect a signal to a slot, the slot will be called with the signal's parameters at the right time. Signals and slots can take any number of arguments of any type.
New Signal Slot Syntax - Qt Wiki
Signals and slots are loosely coupled: A class which emits a signal neither knows nor cares which slots receive the signal. Qt’s signals and slots mechanism ensures that if you connect a signal to a slot, the slot will be called with the signal’s parameters at the right time. Signals and slots can take any number of arguments of any type.
@raven-worx said in Signal from grand child class to grand parent slot: post a custom event to the event loop and let the anyone listening to it receive it. Probably this is the good solution. And i know, problems like this, are result of bad architecture. Qt - Connecting overloaded signals/slots | qt Tutorial qt documentation: Connecting overloaded signals/slots. Example. While being better in many regards, the new connection syntax in Qt5 has one big weakness: Connecting overloaded signals and slots. New Signal Slot Syntax - Qt Wiki
Qt connect signal to slot - Stack Overflow
Qt 4 je svobodná multiplatformní knihovna sloužící primárně (ale nejenom) k vývoji grafických programů. Jejím nativním jazykem je C++, a tím se také v tomto seriálu budeme zabývat. Qt/C++, signály, sloty a vlánka (vyřešeno) Koukám na to a je mi divné, že to vůbec funguje, žádné chyby ani varování... Signály i sloty jsou v QtRelationalReaderStringHadler a connect() dělám taky v této třídě (ovšem ještě v hlavním vlákně). Grafické programy v Qt 4 - 6 (WebKit, Phonon, taby, modálnost…
Signals and slots are loosely coupled: A class which emits a signal neither knows nor cares which slots receive the signal. Qt's signals and slots mechanism ensures that if you connect a signal to a slot, the slot will be called with the signal's parameters at the right time. Signals and slots can take any number of arguments of any type. Signal from grand child class to grand parent slot | Qt Forum @raven-worx said in Signal from grand child class to grand parent slot: post a custom event to the event loop and let the anyone listening to it receive it. Probably this is the good solution. And i know, problems like this, are result of bad architecture. Qt - Connecting overloaded signals/slots | qt Tutorial