Detect If Control (Ctrl) ANd Another Key Is Pressed KEY_F

[ShapeShiftme]

Good DAy im trying to catch CTRL + F Key in my code and i can cath if f is pressed by doing the following


void MainWindow::keyPressEvent(QKeyEvent *e)
{
if ( (e->key() == Qt::Key_F) ) //&& ( e->state() & ControlButton )
{
qDebug()<<" Correct Key";
}

else
{
qDebug()<<"Not Correct Key";
}
}

However I need to kknow if ctrl is pressed as well. Could someone please help me with this regard

[FelixB]

try


QApplication::keyboardModifiers() & Qt::ControlModifier

[MarekR22]

just check documentation of QKeyEvent.

[ShapeShiftme]

try


QApplication::keyboardModifiers() & Qt::ControlModifier

Thank you that worked great and for anyone that wants to know where to insert the code do the following


void frm_web::keyPressEvent(QKeyEvent *e)
{
if ( (e->key() == Qt::Key_F) && QApplication::keyboardModifiers() && Qt::ControlModifier)
{
qDebug()<<" Correct Key";
//connect my signal and slot
}

else
{
qDebug()<<"Not Correct Key";
}
}

Thanks Again

[tiho_d]

Your line number 3) has a bug. You Control key check must be a field manipulation operator(&) and not (&&). The correct line of code would be:


if ((e->key() == Qt::Key_F) && (QApplication::keyboardModifiers() & Qt::ControlModifier))

Another way to do the same for people who are not that familiar with field manipulation functions is the following line identical to the line above:


if ((e->key() == Qt::Key_F) && (QApplication::keyboardModifiers().testFlag(Qt::Co ntrolModifier)))

I would also recommend using the modifiers coming from the key event itself and not the global app keyboard modifiers. i.e. the best way to write what you need is:


if ((e->key() == Qt::Key_F) && (e->modifiers().testFlag(Qt::ControlModifier)))