205                            detectedEscapeButton(nullptr), informativeLabel(nullptr),  in QMessageBoxPrivate()
260     QLabel *informativeLabel;  member in QMessageBoxPrivate
320     if (informativeLabel) {  in setupLayout()
322         informativeLabel->setContentsMargins(0, 7, 0, 7);  in setupLayout()
324         grid->addWidget(informativeLabel, 1, hasIcon ? 2 : 1, 1, 1);  in setupLayout()
327         grid->addWidget(checkbox, informativeLabel ? 2 : 1, hasIcon ? 2 : 1, 1, 1, Qt::AlignLeft);  in setupLayout()
381     if (informativeLabel)  in updateSize()
382         informativeLabel->setSizePolicy(QSizePolicy::Ignored, QSizePolicy::Ignored);  in updateSize()
402     if (informativeLabel) {  in updateSize()
406         informativeLabel->setSizePolicy(policy);  in updateSize()
409             informativeLabel->d_func()->ensureTextControl();  in updateSize()
410             if (QWidgetTextControl *control = informativeLabel->d_func()->control) {  in updateSize()
1443         if (d->informativeLabel)  in changeEvent()
1444             d->informativeLabel->setTextInteractionFlags(flags);  in changeEvent()
1504             if (d->informativeLabel)  in keyPressEvent()
1505                 textToCopy += d->informativeLabel->text() + QLatin1Char('\n') + separator;  in keyPressEvent()
2573     return d->informativeLabel ? d->informativeLabel->text() : QString();  in informativeText()
2580         if (d->informativeLabel) {  in setInformativeText()
2581             d->informativeLabel->hide();  in setInformativeText()
2582             d->informativeLabel->deleteLater();  in setInformativeText()
2584         d->informativeLabel = nullptr;  in setInformativeText()
2586         if (!d->informativeLabel) {  in setInformativeText()
2598             d->informativeLabel = label;  in setInformativeText()
2600         d->informativeLabel->setText(text);  in setInformativeText()