The QAction class, part of the Qt framework, provides an abstract user interface action that can be inserted into widgets.
Documentation can be found here
Questions tagged [qaction]
145 questions
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Pyside2 QAction triggers once automatically but not when user clicks the menu
I've created a simple GUI using qt designer and imported it into my python project. The main window comes up, and the menus/buttons are responsive, but I cannot manage to connect my QActions to custom functions (I did it for buttons though, and it…
Carlos Borau
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1 answer
How to make size of button in the LineEdit smaller?
I made the X button in the LineEdit, when i click on this button, the LineEdit is clear. But with my method, the X button looks a little big and not beautiful, I need to make it smaller. How I can do it?
myLineEdit = new…
songvan
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How to change the color of a QAction that is in a toolbar?
I have a toolbar or there are several QActions. I would like to change the color of the QAction when it is selected so that the user can see the chosen action.
The problem is that QAction is not a QWidget so we can not use stylesheet.
Is there a way…
user8632386
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2 answers
PyQt5: one callback works, the other doesn't - why?
My research has included:
PyQt reference to callable problem?
Python PyQt callback never runs - how to debug?
Passing extra arguments to PyQt slot
I am building a linux 'launcher' program which currently has two callbacks. One simply launches the…
tscv11
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One QMenu for all QToolButton
I've created QToolBar which contains few QToolButton. Each QToolButton has QMenu which is one for all. And this menu has few actions.
Ugly example:
QToolBar bar;
QMenu menu;
QAction action1;
menu.addAction(action1);
QAction…
Patrik Vons
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2 answers
Turn off themeing of menus in Qt?
I've inherited a Qt project that had themed right-click menus (which look really weird on macOS). I removed the setStyleSheet() call from the QMenu, yet it still highlights only the text instead of the item's background and uses weird font sizes.
Is…
uliwitness
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How to use QWebEnginePage::OpenLinkInNewTab [Qt5.8]
When I click on link to any question in my feed on Quora using this code, the link doesn't open but it doesn't print "Hello". Could you please tell me where am I wrong? I'm pretty sure that link on quora emits the OpenLinkInNewTab signal. Please…
user7771896
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3 answers
How to disconnect function from QAction?
I am developing a plugin for the GIS software, QGIS. I have a QAction icon which, when checked, connects layers in a group to a function whenever their visibility is toggled. Then when it is unchecked, it is supposed to disconnect these functions…
Joseph
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Pyqt5 QAction triggered event error in Windows
I developed a GUI application with python and pyqt5 in Ubuntu 16.04. There is an QActionBar in application that have some clickable items. All of functionalities in Ubuntu works perfect. As I want to export executable file for MS Windows, I was…
Mahmood Kohansal
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In QT5, how to open new window on click event on sub-menu item?
I am new to QT programming & UI designing.
I want to open a new window when the user clicks on submenu or menu item.
I can successfully open a new window when the user clicks on a button.
Below the image of my main window. I want to open new window…
user1868132
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1 answer
QAction Icon Change on Hover
In my project I display a QMenu with several QAction objects. I want the QAction icon to change when the user hovers over it.
Here is my current code:
QPixmap icons(":/icons/platformIcons.png");
QIcon icon;
icon.addPixmap(icons.copy(0, 0, 16, 16),…
mrg95
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How create QActions and their signals according to file
I am using python3 and PyQt4. I want to create a menu with actions, the number of which differs according to an array. I want each of them to save the corresponding information, saved in the array, to a variable. Creating variable number of events…
iagerogiannis
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How to access a QAction using the QtTest lib?
I have a pop-up menu in a QTableWidget (resultTable). In the constructor of my class I set the context menu policy:
resultTable->setContextMenuPolicy(Qt::CustomContextMenu);
connect(resultTable, SIGNAL(customContextMenuRequested(QPoint)), this,…
KelvinS
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Why does QAction not have a default constructor?
Most classes in Qt have a default constructor. Many classes take a QObject* or QWidget* as constructor argument with default value nullptr. The class QAction also has such a constructor taking a QObject* as argument, but there is no default value.…
Ralph Tandetzky
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Start and Stop thread using QAction toggled
I'm currently trying to build a PyQt5 app and it should consist of the main GUI and in the background there should be a different thread that should measure something in an infinite loop. And I want to start and stop this thread using a QAction or…
haxor789
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