slot is a method callback used to handle a signal in some gui frameworks like QT
slot is a method callback used to handle a signal in some gui frameworks like QT - see for instance: http://doc.qt.io/qt-4.8/signalsandslots.html
Questions tagged [slot]
445 questions
3
votes
1 answer
Why main event loop gets frozen if private slot is called from background thread?
I'm developing GUI application using python and PySide. I need to run long backgroung task in a separate thread. For threading I decided to use QThread according to the 'correct' approach without subclassing from if (see…
Roman
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votes
1 answer
Qt connect without SLOT macro
Let's say I have a string containing "function()", where function() is a slot in a class, and I would like to connect that slot with any signal, but using that string. Neither
QString f="function()";
connect (randomobject, SIGNAL(randomsignal()),…
rndm
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1 answer
Qt Signal from QRunnable not received/not connecting
I'm writing a Qt Application in C++. I have a QRunnable running in a QThreadPool, and it sends a signal to the main thread. The problem is, the connection doesn't work: the signal is never received by the main thread, even though I've verified that…
Karl Arsenault
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How to make a function to be a slot temporally in Qt?
To make a function of a class to be a slot, the class has to inherit from QObject. However, QObject takes up a quite large amount of memory. I am not sure how much it is and if the memory is for each class or each object. My code has many small data…
user1899020
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Qt::QueuedConnection invoke at most once per event loop iteration
Consider the following situation:
class Foo : public QObject {
Q_OBJECT
public:
void set_A(int a) { emit updated(this); }
void set_B(int b) { emit updated(this); }
signals:
void updated(Foo*);
}
Foo f;
connect(&f,…
qdot
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Qt Signal and slot
i have two functions and one of them call the other one. I want to use one of them as a slot to the signal clicked() in a pushbutton so here's part of my planevolume.h code so you can understand:
#ifndef PLANEVOLUME_H
#define PLANEVOLUME_H
#include…
SamuelNLP
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How to dynamically load datatypes during runtime through a plugin mechanism
Since Qt doesnt allow templates in their slots, I tried to do the following solution without success.
First a would like to create a list like this:
list commands =
0, "MyDashboard", DashBoard0
1, "MomsDashboard", Dashboard1
Dashboard 0 and 1 are…
chikuba
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Can I modify a public function in base class to public slots in derived class in Qt?
I'm using Qt now.
I've written a C++ class A and there are some public functions in it. And now, I'm writing a Qt class B which has multiple inheritences from both QObject and A.
And I want to change one public function in A to public slots in B.…
Rubbish_Oh
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How to handle slots in Vue3 & Storybook 7
I am trying to pass in a component (UIButton) as a slot in another component (UICard) in ButtonAsSlot story.
In the ButtonAsSlot story, I am passing default: '
user16589580
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votes
2 answers