void MyWidget::keyPressEvent(QKeyEvent *event) { if (event->key() == Qt::Key_A && event->modifiers() == Qt::ShiftModifier) { // Do something special when Shift+A is pressed. } else { // Do something else. } }
void MyWidget::keyPressEvent(QKeyEvent *event) { if (event->key() == Qt::Key_A && event->modifiers() == Qt::AltModifier) { // Do something special when Alt+A is pressed. } else { // Do something else. } }
void MyWidget::keyPressEvent(QKeyEvent *event) { if (event->key() == Qt::Key_A && event->modifiers() == Qt::ControlModifier) { // Do something special when Control+A is pressed. } else { // Do something else. } }In this example, we use the `modifiers()` method to check if the Control modifier was held down when the key was pressed. We then perform a specific action when Control+A is pressed, and a different action for all other keys. Package library: QtGui Overall, the QKeyEvent modifiers provide a convenient way to detect if keys were pressed in combination with other keys, enabling you to create more sophisticated and responsive applications.