Dialog 0 0 300 111 300 111 300 111 Guitar chord editor G E B A D e 0 21 0 21 0 21 0 21 0 21 0 21 Qt::Horizontal QDialogButtonBox::Cancel|QDialogButtonBox::Ok buttonBox accepted() Dialog accept() 248 254 157 274 buttonBox rejected() Dialog reject() 316 260 286 274