The QButtonGroup widget organizes QButton widgets in a group. ... A button group widget makes it easier to deal with groups of buttons. ... The button group emits a clicked () signal with this identifier when the button is clicked. ... An exclusive button group switches off all toggle buttons except the one that was clicked. ... The button group is a parent widget of a number of buttons, i.e. the button group is the parent argument in the button contructor. ... Removes a button from the button group. ...