addressBook	Fully-functioning address book application
classWizard	Wizard for defining an R extension of a Qt class
widget	Basic widget usage
textEdit	Extending a QValidator to validate text input
analogClock	Custom painting of widgets
characterWidget	Character palette, interaction with custom drawing
groupBox	Various types of buttons, grouped into boxes
imageViewer	View, zoom, pan, and print an image
lineEdit	Validation, alignment, masking, etc with QLineEdit
movie	Display an animated image format
sliders	Sliders, scroll bars and dials
