connect(buttonBox, SIGNAL(accepted()), this, SLOT(openFile()));
connect(buttonBox, SIGNAL(rejected()), this, SLOT(reject()));
connect(buttonBox, SIGNAL(helpRequested()), this, SLOT(help()));
buttonBox = new QDialogButtonBox(QDialogButtonBox::Open
| QDialogButtonBox::Cancel
| QDialogButtonBox::Help);
connect(buttonBox, SIGNAL(accepted()), this, SLOT(openFile()));
connect(buttonBox, SIGNAL(rejected()), this, SLOT(reject()));
connect(buttonBox, SIGNAL(helpRequested()), this, SLOT(help()));
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I know how to use them now.
still the problem, how to configure the Groupbox
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