Change property of QInputDialog button

[Raadush]

Hi, I have this problem. I have application where I use QInputDialog for passwords. What I want is to disable Ok button until user inputs at least 4 numbers into dialog. Is there some way to do it? I can retrieve length of input by reacting on signal textValueChanged(QString), but how to change property of QInputDialog button? Is it even possible?

[Naahmi]

Hi, I have this problem. I have application where I use QInputDialog for passwords. What I want is to disable Ok button until user inputs at least 4 numbers into dialog. Is there some way to do it? I can retrieve length of input by reacting on signal textValueChanged(QString), but how to change property of QInputDialog button? Is it even possible?

i think you cant enable/disable the standard buttons from qinputdialog.
Why you doesn't make a QWidget with QLineEdit field and implent your own qpushbutton? then you can check the length of the qlineedit and enable/disable the qpushbutton.

i think that is the better way to handle this.

[Lykurg]

Well, you can access the buttons:

QInputDialog d;
    d.show();
    QList<QDialogButtonBox*> l = d.findChildren<QDialogButtonBox*>();
    if (!l.isEmpty())
        l.first()->button(QDialogButtonBox::Ok)->setEnabled(false);

QInputDialog d;
    d.show();
    QList<QDialogButtonBox*> l = d.findChildren<QDialogButtonBox*>();
    if (!l.isEmpty())
        l.first()->button(QDialogButtonBox::Ok)->setEnabled(false);

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but you shouldn't. Better code your own dialog.