QAction *quitAction = new QAction("Quit", this); quitAction->setShortcut(QKeySequence::Quit); connect(quitAction, &QAction::triggered, qApp, &QCoreApplication::quit);
QAction *newFileAction = new QAction("New File", this); newFileAction->setShortcut(QKeySequence::New); connect(newFileAction, &QAction::triggered, this, &MyClass::handleNewFile);In this example, we create a QAction called "New File" and assign the keyboard shortcut for creating a new file using the QKeySequence::New constant. We also connect the triggered signal of the action to a custom slot called "handleNewFile" in the MyClass instance. This example uses the QWidget class and a custom MyClass library. In conclusion, the QAction setShortcut method is a useful tool for assigning keyboard shortcuts to actions in Qt applications. The required package/library for these examples is the Qt library.