slot Questions

2

Solved

Let's say I want to define two classes classes, Sentence and Word. Each word object has a character string and a part of speech (pos). Each sentence contains some number of words and has an additio...
Kirchner asked 15/9, 2014 at 19:10

2

Solved

After my post here : Associate signal and slot to a qcheckbox create dynamically I need to associate : • The signal clicked() when I click on a qCheckBox to my function cliqueCheckBox(QTableWidget...
Unfledged asked 17/6, 2014 at 9:37

3

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I've got a very specific problem so I'm going to try to be as clear as possible. I've got a QTabWidget which contains QTableWidget, every line of my QTableWidget is create dynamically by reading a...
G asked 17/6, 2014 at 7:15

4

Solved

How to pass a function "pointer" from JavaScript to a slot? in JavaScript: function f1() { alert("f1"); } qtclass.submit(f1); and in Qt: public slots: void submit(void * ptr) { (void)ptr;...
Indemonstrable asked 12/2, 2011 at 1:16

1

I'm trying to build a little app that loads several webpages in an QTabWidget. This already works well. Now I want the tabs / QWebViews to be reloaded when the current Tab is changed. I think that...
Lengel asked 4/2, 2014 at 20:17

3

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For documenting classes with roxygen(2), specifying a title and description/details appears to be the same as for functions, methods, data, etc. However, slots and inheritance are their own sort of...
Hyrcania asked 9/9, 2011 at 22:52

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I have 2 classes. Class A and Class B. I am emitting a signal from class A which I want the B to recieve. I am doing it following way In Listener File Header File: Class Listener:public DDSDat...
Installation asked 7/8, 2013 at 7:15

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My original code passed a QStringList from the signal to the slot and then returned a QList . Everything worked fine but I needed to change both the QStringList and QList into 2 different subclasse...
Glorygloryofthesnow asked 2/8, 2013 at 19:56

3

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I would like to generically and temporarily block the signals between two QObjects without modifying the other signals/slots behavior, and without knowing their contexts. Something like QObject::b...
Jeanninejeans asked 26/3, 2013 at 9:8

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Qt documentation states that it is possible to connect two signals together: It is even possible to connect a signal directly to another signal. I tried: connect(x, SIGNAL(S()), y, SIGNAL(fu...
Watterson asked 21/3, 2012 at 3:25

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The new Qt5 signals and slots syntax allows us to connect signals not only to slots, but also to plain old functions and functors/lambdas. Now the problem is, that lambdas are essentialy objects wi...
Poynter asked 12/12, 2012 at 19:52

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I've got two classes; one for my window and one for my controlling object class window(baseClass, testForm): scanStarted = QtCore.pyqtSignal(str) def __init__(self,parent=None): super(window, s...
Sphagnum asked 2/10, 2012 at 16:34

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I would like to know if the function do_something() is treated as a new thread, when I click on my_button. connect(my_button, SIGNAL(clicked), this, SLOT(do_something));
Manhattan asked 20/8, 2012 at 5:53

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I've "Core" object that handles QMainWindow. Core.h code class Core : public QObject { Q_OBJECT public: explicit Core(QObject *parent = 0); ~Core(); void appInit(); int getAuth(); public sl...
Communalism asked 24/11, 2011 at 8:15

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In my class definition, I want to initialize one slot based on the value of another slot. Here is the sort of thing I would like to do: (defclass my-class () ((slot-1 :accessor my-class-slot-1 :i...
Periapt asked 1/9, 2010 at 16:37

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