Qt - QPushButton shortcut not trigering

Question

I am having trouble with binding a shortcut to a QPushButton through QtCreator.

What I did is to place a button in a QDialog and to use auto-connect to connect the clicked() signal to a slot. I then set up the property QAbstractButton::shortcut to Ctrl+N in the form editor.

When I click the button, the slot gets triggered, but when I press the shortcut, nothing happens.

Here is the code for the ui file :

<?xml version="1.0" encoding="UTF-8"?>
<ui version="4.0">
 <class>Dialog</class>
 <widget class="QDialog" name="Dialog">
  <property name="geometry">
   <rect>
    <x>0</x>
    <y>0</y>
    <width>400</width>
    <height>300</height>
   </rect>
  </property>
  <property name="windowTitle">
   <string>Dialog</string>
  </property>
  <widget class="QPushButton" name="pushButton">
   <property name="text">
    <string>PushButton</string>
   </property>
   <property name="shortcut">
    <string>Ctrl+N</string>
   </property>
  </widget>
 </widget>
 <resources/>
 <connections/>
</ui>

And here is the code for my Dialog class (header and source have been merged):

namespace Ui {
class Dialog;
}

class Dialog : public QDialog
{
    Q_OBJECT

public:
    explicit Dialog(QWidget *parent = 0) :
        QDialog(parent), ui(new Ui::Dialog)
    {
        ui->setupUi(this);
    }

private slots:
    void on_pushButton_clicked()
    {
        qDebug() << "click!";
    }

private:
    Ui::Dialog *ui;
};

int main(int argc, char* argv[]) {
    QApplication app(argc, argv);
    Dialog dialog;
    dialog.show();
    return app.exec();
}

I managed to make it work with an action in the menubar, I don't understand why it does not seem to work the same.

I am using Qt 5.8.0.

I find it strange, I tried your code by pressing "Ctrl + N", you could run Build-> Clean all and then Build-> Run qmake — eyllanesc
I am still having the same issue after following these steps — MaxV37
You could share your code through github, drive, dropbox or similar. — eyllanesc
Here is a link to the repository: github.com/MaxV37/qtbuttonshortcut — MaxV37
These shortcuts do work, even in my own application, as long as the shortcut is assigned to an action in the menubar. I am having this problem with QPushButton. I do not have in mind any application which uses such shortcuts. — MaxV37

m7913d m7913d · Accepted Answer · 2017-05-24T20:30:45

You are probably working on a macOS, for which the ControlModifier corresponds with the Command keys and the MetaModifier corresponds to the Control key as documented by Qt:

Note: On macOS, the ControlModifier value corresponds to the Command keys on the Macintosh keyboard, and the MetaModifier value corresponds to the Control keys.

Also the documentation of QKeySequence gives relevant information:

Note: On macOS, references to "Ctrl", Qt::CTRL, Qt::Key_Control and Qt::ControlModifier correspond to the Command keys on the Macintosh keyboard, and references to "Meta", Qt::META, Qt::Key_Meta and Qt::MetaModifier correspond to the Control keys.

So, you should press Command + N to trigger the shortcut.

Qt - QPushButton shortcut not trigering

2 Answers