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# Abstract Widget Classes

These classes are abstract widgets; they are generally not usable in themselves, but provide functionality that can be used by inheriting these classes.

QButton | The abstract base class of button widgets, providing functionality common to buttons
QCanvas | 2D area that can contain QCanvasItem objects
QDialog | The base class of dialog windows
QFrame | The base class of widgets that can have a frame
QGridView | Abstract base for fixed-size grids
QScrollView | Scrolling area with on-demand scroll bars
QWidget | The base class of all user interface objects
QWizard | Framework for wizard dialogs