Qt connect slots by name

Signals and Slots in Depth | C++ GUI Programming with Qt4 ...

QtWarning QMetaObject::connectSlotsByName: No... QtWarning QMetaObject::connectSlotsByName: No matching signal for on_something_event(). Search with Google I found a post that explained, very clearly... connect slot - C++ Qt - Киберфорум connect(pOk, SIGNAL(clicked()), this, SLOT(_close(defDateTime, val))); сколько бы я не нажимал Ок, в метод _close он не заходит. В моём понимании он должен туда зайти, сделать объект Race, и послать сигнал с ссылкой на него? а потом закрыть окно и уничтожить объект с потрохами.

qt documentation: Connecting overloaded signals/slots. ... and QConstOverload/ QNonConstOverload, the names should be self-explanatory }. Previous Next.

Qt Signals & Slots: How they work | nidomiro The one thing that confuses the most people in the beginning is the Signal & Slot mechanism of Qt. But it’s actually not that difficult to understand. In general Signals & Slots are used to loosely connect classes. Languages/Ruby – KDE TechBase class RubySignalSpy < Qt :: Object def self . create ( * args , & block ) Class . new ( self ) . new ( * args , & block ) end def count ( name ) @calls [ name ]. size end def params ( name , invocation = 0 ) @calls [ name ][ invocation ] …

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.

Я не мог понять метод connectSlotsByName (), который преимущественно используется pyuic4. Пока класс одинарный в файле PyQt, это нормально... Problem with Qt's connectSlotsByName | Ubuntu

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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. Using C++11 Lambdas As Qt Slots – asmaloney.com Mar 13, 2016 · Using C++11 Lambdas As Qt Slots. Thanks to C++11 lambdas and Qt’s ongoing evolution, these short slots can be replaced by a more succinct syntax. This avoids having to declare a method in your class declaration and shortens your implementation code. Both desirable goals! Let’s … QObject Class | Qt Core 5.12.3

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.

Personnaliser le code et utiliser les Auto-Connect. Les fenêtres créées avec Qt Designer bénéficient du système « Auto-Connect » de Qt. C'est un système qui crée les connexions tout seul. Par quelle magie ? Il vous suffit en fait de créer des slots en leur donnant un nom qui respecte une convention. New-style Signal and Slot Support — PyQt 4.12.3 Reference ... New-style Signal and Slot Support¶ This section describes the new style of connecting signals and slots introduced in PyQt4 v4.5. One of the key features of Qt is its use of signals and slots to communicate between objects. Their use encourages the development of reusable components. A signal is emitted when something of potential interest ... What do I do if a slot is not invoked? - KDAB All Qt developers have asked themselves at least once in their careers: “why isn’t my slot invoked?” (I’ve asked myself that question many, many times). There are a number of reasons why a connection may fail to be properly set up, and ultimately cause our slot not to be invoked.