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";
    }
}

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

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

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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

QApplication::keyboardModifiers() & Qt::ControlModifier

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[MarekR22]

just check documentation of QKeyEvent.

[ShapeShiftme]

try

QApplication::keyboardModifiers() & Qt::ControlModifier

QApplication::keyboardModifiers() & Qt::ControlModifier

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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";
    }
}

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";
    }
}

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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))

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

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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::ControlModifier)))

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

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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)))

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

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