Modal dialogs are often used in situations where a return value is required, e.g. to indicate whether the user pressed OK or Cancel. A dialog can be closed by calling the accept() or the reject() slots, and exec() will return Accepted or Rejected as appropriate. The exec() call returns the result of the dialog. Sending Python values with signals and slots - FrontPage Sending Python values with signals and slots. On the #pyqt channel on Freenode, Khertan asked about sending Python values via Qt's signals and slots mechanism.. The following example uses the PyQt_PyObject value declaration with an old-style signal-slot connection, and again when the signal is emitted, to communicate a Python dictionary. Qt in Education The Qt object model and the signal slot concept A slot is defined in one of the slots sections A slot can return values, but not through connections ... Qt can ignore arguments, but not create values from nothing QSpinBox Class | Qt 4.8
c++ Can Qt signals return a value? - Recalll
Connecting QML Signals in PySide - Qt Wiki This page describes a few alternative approaches for connecting signals between QML and PySide. Simple illustrative examples about the signal connectivity are also provided in the pyside-examples repository.Browse the git tree directly or download a tarball of all examples and refer to the examples/declarative/signals directory. Qt 4.8: QDialog Class Reference The QDialog class is the base class of dialog windows. A dialog window is a top-level window mostly used for short-term tasks and brief communications with the user. QDialogs may be modal or modeless. QDialogs can provide a return value, and they can have default buttons. How Qt Signals and Slots Work - Woboq
QDialog — Qt for Python
Modal dialogs are often used in situations where a return value is required, e.g. to indicate whether the user pressed OK or Cancel. A dialog can be closed by calling the accept() or the reject() slots, and exec() will return Accepted or Rejected as appropriate. The exec() call returns the result of the dialog.
Qt.ConnectionType
How Qt Signals and Slots Work - Part 3 - Queued and Inter… We can now put it all together and read through the code of queued_activate, which is called by QMetaObject::activate to prepare a Qt::QueuedConnection slot call.
Note that QDialog (and any other widget that has type Qt::Dialog) uses the parent widget slightly differently from other classes in Qt.
Qt Сигналы и слоты, что и как? Главной особенностью библиотеки Qt является технология сигналов и слотов (Signals and slots). Не могу вам сказать что она чем-то значительно лучше других подходов, но мне эта штука нравится :). В чем же суть. Signals & Slots | Qt Core 5.12 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.
How Qt Signals and Slots Work - Part 3 - Queued and Inter Thread Connections This blog is part of a series of blogs explaining the internals of signals and slots. Part 1 - How Qt Signals and Slots Work QDialog Class Reference - SourceForge.net The QDialog class is the base class of dialog windows. A dialog window is a top-level window mostly used for short-term tasks and brief communications with the user. QDialogs may be modal or modeless. QDialogs can provide a return value, and they can have default buttons.