21,440
社区成员




QFileDialog dialog;
if (QLabel *label = dialog.findChild<QLabel *>("fileNameLabel"))
{
label->setText("hello");
}
dialog.exec();
QFileDialog dialog;
foreach (QObject *obj, dialog.children())
{
if (obj->objectName() == "fileNameLabel")
{
QLabel *label = qobject_cast<QLabel *>(obj);
label->setText("hello");
}
}
QFileDialog::getOpenFileName();