These classes are abstract widgets; they are generally not usable in themselves, but provide functionality that can be used by inheriting these classes.
QAbstractButton | The abstract base class of button widgets, providing functionality common to buttons |
QAbstractSlider | Integer value within a range |
QAbstractSpinBox | Spinwidget and a lineedit to display values |
QDialog | The base class of dialog windows |
QFrame | The base class of widgets that can have a frame |
QViewport | Scrolling area with on-demand scroll bars |
QWidget | The base class of all user interface objects |