The QCheckBox widget provides a check box with a text label. ... QCheckBox  ( QWidget * parent=0, const char * name=0 )  . QCheckBox  ( const char * text, QWidget * parent, const char * name=0 )  . ... QCheckBox and QRadioButton are both toggle buttons, but a check box represents an independent switch that can be on (checked) or off (unchecked). See also: QButton , QRadioButton and Fowler: Check Box. ... Constructs a check box with no text. ... Draws the check box. ... See also: drawButton (). ...