How do I get a child of a QDialog (access a button) with an enum?

Question

I've got a button, assigned to a QDialog this way:

QPushButton *button = ui->buttonBox->button(QDialogButtonBox::StandardButton::Ok);

How do I get it as a child from a QDialog?

I wanted to use:

parentWidget->findChild<QPushButton*>(QDialogButtonBox::StandardButton::Ok);

but findChild<T> needs a QString.

Any suggestions?

Why do you need that? If you already have a specialized function that does exactly what you want. — eyllanesc, Sep 07 '21 at 14:58
what exactly are you trying to do... this looks to me like an x->y problem.... — ΦXocę 웃 Пepeúpa ツ, Sep 08 '21 at 15:42

Ye.Feng · Accepted Answer · 2021-09-09T02:57:01.093

2

Get the buttonBox by its object name first, and then you can get the button you want:

QDialogButtonBox* buttonBox = dialog.findChild<QDialogButtonBox*>("buttonBox");
if (buttonBox)
{
    QPushButton* btn = buttonBox->button(QDialogButtonBox::Ok);
    if (btn)
    {
        qDebug() << "Find it!";
    }
}

edited Sep 09 '21 at 02:57

answered Sep 08 '21 at 05:37

Ye.Feng

709
6
9

score 2 · Answer 2 · answered Sep 08 '21 at 05:46

2

findChild finds a Qt Object by objectname. You have to give your button an Object name first using:

setObjectName(const QString &name)

See documentation here.

answered Sep 08 '21 at 05:46

Mailerdaimon

6,003
3
35
46

How do I get a child of a QDialog (access a button) with an enum?

2 Answers2