Qt Development Language Bindings PyQt slot return value PyQt slot return value. This topic has been deleted. Only users with topic management privileges can see it. thumperj. last edited by . Any help with this would be appreciated, including hints on how to debug further. The pyqtSlot decorator takes a result as one of the parameters. ... Can Qt signals return a value - forums.wikitechy.com It captures the return value from the slots. Expand the code”testSlot2″, and return the last value from the connected slots of the signal. Qt Signals are a syntax sugared interface to the signaling pattern. Slots are the recipients of signal and direct connected signal-slot relationship. Can Qt signals return a value? - ExceptionsHub Questions: Boost.Signals allows various strategies of using the return values of slots to form the return value of the signal. E.g. adding them, forming a vector out of them, or returning the last one. The common wisdom (expressed in the Qt documentation [EDIT: as well as some answers to this question ]) is that no ...
Support for Signals and Slots — PyQt 5.11.1 Reference Guide
foreach slot in connectedSlotsForSignal(signal): value = invoke slot with ... { QString text; emit Get(&text); return text; } signals: void Get(QString *value); void ... Qt Thread - [0] - 博客园 May 5, 2017 ... This means that all of QThread's queued slots will execute in the old ..... Note that the return value and return type of the map function are not ... cppcheck/qt.cfg at master · danmar/cppcheck · GitHub qt can call methods as strings using invokeMethod -->.
16. Qt and C++ — Qt5 Cadaques Book vmaster
Getting a return value from an emitted signal Getting a return value from an emitted signal This topic has been deleted. Only users with topic management privileges can see it. inopportuno last edited by I have a plugin architecture. A core application calling the ...
Getting a return value from an emitted signal Getting a return value from an emitted signal This topic has been deleted. Only users with topic management privileges can see it. inopportuno last edited by I have a plugin architecture. A core application calling the ...
It generates a C wrapper so that other languages can make use of Qt through C-FFI. ..... Then, it adds an initializer (with priority 10) that sets the slot-value to the .... type, which you can always set to NIL if you don't care about the return value. Multithreading with Qt | Packt Hub Nov 16, 2016 ... Each QThread comes with its own event loop that can process events outside ... The type variable takes Qt::AutoConnection as a default value. ... Qt::QueuedConnection: The slot is invoked when control returns to the event ... QtConcurrent QProgressDialog with QFutureWatcher - BogoToBogo But there are some methods (actually slots) of QProgressDialog class we haven't ... When we do multi-threading coding, thanks to QtConcurrent, we may not ... We've already used this to get the return value from QtConcurrent::run() in our ... ="http://www.bogotobogo.com/Qt/Qt5_QtConcurrent_RunFunction_QThread.php" ... Old-style Signal and Slot Support — PyQt 4.9.4 Reference Guide This older style of connecting signals and slots will continue to be supported throughout the life of PyQt v4. ... The returned value is normally passed to the QtCore. ... PyQt allows any Python callable to be used as a slot, not just Qt slots. This is ...
Qt 4.8: Signals & Slots
Connections can be added or removed at any time during the execution of a Qt application, they can be set up so that they are executed when a signal is emitted or queued for later execution, and they can be made between objects in different threads. PythonQt: Developer PyObject is passed as direct pointer, which allows to pass/return any Python object directly to/from a Qt slot that uses PyObject* as its argument/return value. QVariants are mapped recursively as given above, e.g. a dictionary can contain lists of dictionaries of doubles.
Lambda Expressions and Qt 4.x - Silmor.de E.g. MSVC 2010 will deny the sort code, LLVM 2.9 will not compile lambdas at all. .... are copied (the lambda knows its context by value instead of by reference), but ... If you need the paramters or need a return type for the slot/lambda you have ... QGlib - GStreamer