Dialog 0 0 178 156 Get min and max value of control true Mesh true Control Min true Max true Qt::Horizontal QDialogButtonBox::Close|QDialogButtonBox::Help mesh control minvalue maxvalue buttonBox buttonBox rejected() Dialog OnCancel() 253 371 262 101 buttonBox helpRequested() Dialog helpMessage() 131 373 131 64 control activated(QString) Dialog compute_minmax() 250 137 131 81 compute_minmax() helpMessage() OnCancel() OnOk()