[slot] void QSound:: play This is an overloaded function. ... Infinite will cause the sound to loop indefinitely. See also ... Qt and respective logos are trademarks ... EmbedingPyQtTutorial - Python Wiki It assumes that such Hybrid application can have two "branches" - c++ code and python code working together, exchange signals between two these branches, of course possibility to create new objects with python/pyqt and connect signal/slots beetween two parts of the application (Qt and PyQt), well between Qt objects and PyQt objects. Programming with Qt - Computer Science Programming with Qt Prof. George Wolberg Dept. of Computer Science City College of New York
I've created a Worker object in Qt to process video input indefinitely, and then move it into a QThread to keep the UI thread going. The problem is, I designed it such that the video capture function runs in an infinite loop until interrupted by a flag, and the flag was supposed to be set by a slot in the Worker object, but since the Worker object is inside the infinite loop, it never ...
I have a QWebView that opens a local web page on my computer, and everything works perfectly in Qt4.8. (It also works with a browser). But after porting the software to Qt5.0.2 (and making the change from QWebView to QtWebKitWidgets/QWebView, the program appears to hang, then crashes with the following output: EmbedingPyQtTutorial - Python Wiki It assumes that such Hybrid application can have two "branches" - c++ code and python code working together, exchange signals between two these branches, of course possibility to create new objects with python/pyqt and connect signal/slots beetween two parts of the application (Qt and PyQt), well between Qt objects and PyQt objects. QSound Class | Qt Multimedia 5.9 Once created a QSound object can be queried for its fileName() and total number of loops() (i.e. the number of times the sound will play). The number of repetitions can be altered using the setLoops() function. While playing the sound, the loopsRemaining() function returns the remaining number of repetitions. Use the isFinished() function to determine whether the sound has finished playing. c++ - Qt Signal Slot Architecture Unwanted Infinite Loop
Signals and slots between objects in different threads in Qt. Ask Question 0. ... I understand of your messages that I must change myprocess method because with this infinite loop the system can't process the events loop. Correct? I read the Qt documentation, but sometimes I don't know how to do it. ... Qt: Signal/Slot not working after QObject ...
Qt's signals and slots mechanism ensures that if you connect a signal to a slot, the slot .... This prevents infinite looping in the case of cyclic connections (e.g., if b .
Signals and Slots. In Qt, we have an alternative to the callback technique: We use signals and slots. A signal is emitted when a particular event occurs. Qt's widgets have many predefined signals, but we can always subclass widgets to add our own signals to them. A slot is a function that is called in response to a particular signal.
Infinite loop and signal deluge | Qt Forum Infinite loop and signal deluge Infinite loop and signal deluge. This topic has been deleted. ... and connect this signal in a blocking way to a slot of my main thread that will just consist in a processEvents() call. Reply Quote 0. 0 Replies Last reply . ... Nokia Certified Qt Specialist. Signals and Slots - Qt Documentation Signals and Slots. Signals and slots are used for communication between objects. The signal/slot mechanism is a central feature of Qt and probably the part that differs most from other toolkits. In GUI programming we often want a change in one widget to be notified to another widget. Signal Slot problem in a thread [EDIT-UPDATE] | Qt Forum @VRonin said:. I thought the order of execution of slots should not be considered deterministic. When across threads it can't be deterministic. When using Qt::DirectConnection (I think it's documented) the order is in the order of connects.. Or does that rely on the fact that the first connection is implicitly a directconnection while the second is a queuedconnection? if that is the case then ... Qt Toolkit - Signals and Slots
Slots are called recursive or in infinite loop - Qt Centre Forum
You stopped the loop in ThreadWorker, but you didn't stop the loop in QThread. As @J-Hilk said, you need to call threadController->quit() too. @Andrea said in Terminate QThread correctly: I've read the QThread Basics docs and also had a look on StarckOverflow and the Qt forum, but still having the doubt. Qt 4.3: Signals and Slots Signals and Slots. In Qt, we have an alternative to the callback technique: We use signals and slots. A signal is emitted when a particular event occurs. Qt's widgets have many predefined signals, but we can always subclass widgets to add our own signals to them. A slot is a function that is called in response to a particular signal. Qt in Education The Qt object model and the signal slot ... The QObject QObject is the base class of almost all Qt classes and all widgets It contains many of the mechanisms that make up Qt events signals and slots properties How to process events during infinite loop in Worker ... I've created a Worker object in Qt to process video input indefinitely, and then move it into a QThread to keep the UI thread going. The problem is, I designed it such that the video capture function runs in an infinite loop until interrupted by a flag, and the flag was supposed to be set by a slot in the Worker object, but since the Worker object is inside the infinite loop, it never ...
I've created a Worker object in Qt to process video input indefinitely, and then move it into a QThread to keep the UI thread going. The problem is, I designed it such that the video capture function runs in an infinite loop until interrupted by a flag, and the flag was supposed to be set by a slot in the Worker object, but since the Worker object is inside the infinite loop, it never ... Signals & Slots — Qt for Python An overview of Qt’s signals and slots inter-object communication mechanism. Signals and slots are used for communication between objects. The signals and slots mechanism is a central feature of Qt and probably the part that differs most from the features provided by other frameworks. Signals & Slots | Qt Core 5.12.3 Signals and Slots. In Qt, we have an alternative to the callback technique: We use signals and slots. A signal is emitted when a particular event occurs. Qt's widgets have many predefined signals, but we can always subclass widgets to add our own signals to them. A slot is a function that is called in response to a particular signal.