The QComboBox widget is a combined button and popup list. ... QComboBox  ()  . ... void  insertStrList  ( const QStrList *, int index=-1 )  . ... A combo box may be defined as a selection widget which displays the current selection, and which can pop up a list of possible selections. ... A combo box emits two signals, activated () and highlighted (), when a new item has been activated (selected) or highlighted (set to current). ... Inserts the list of strings at the index index in the combo box. ...