I have QGroupBox and widgets inside one. If I want to disable all these widgets I write
Qt Code: 
  1. mygroupBox->SetEnabled(false);
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If I want to enable all widgets I write
Qt Code: 
  1. mygroupBox->SetEnabled(true);
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But if the groupbox is disabled initially (for ex I set this in QtCreator) then I can not enable it in run-time.