These classes are used to customize an application's appearance and style.
| QBoxLayout | The QBoxLayout class lines up child widgets horizontally or vertically. |
| QButtonGroup | The QButtonGroup class provides a container to organize groups of button widgets. |
| QCDEStyle | The QCDEStyle class provides a CDE look and feel. |
| QColor | The QColor class provides colors based on RGB, HSV or CMYK values. |
| QCommonStyle | The QCommonStyle class encapsulates the common Look and Feel of a GUI. |
| QCursor | The QCursor class provides a mouse cursor with an arbitrary shape. |
| QDecorationFactory | The QDecorationFactory class creates window decorations in Qtopia Core. |
| QFont | The QFont class specifies a font used for drawing text. |
| QGridLayout | The QGridLayout class lays out widgets in a grid. |
| QGroupBox | The QGroupBox widget provides a group box frame with a title. |
| QHBoxLayout | The QHBoxLayout class lines up widgets horizontally. |
| QInputContextFactory | The QInputContextFactory class creates QInputContext objects. |
| QLayout | The QLayout class is the base class of geometry managers. |
| QLayoutItem | The QLayoutItem class provides an abstract item that a QLayout manipulates. |
| QMacStyle | The QMacStyle class provides a Mac OS X style using the Apple Appearance Manager. |
| QMotifStyle | The QMotifStyle class provides Motif look and feel. |
| QPalette | The QPalette class contains color groups for each widget state. |
| QSizeGrip | The QSizeGrip class provides a resize handle for resizing top-level windows. |
| QSizePolicy | The QSizePolicy class is a layout attribute describing horizontal and vertical resizing policy. |
| QSpacerItem | The QSpacerItem class provides blank space in a layout. |
| QStackedLayout | The QStackedLayout class provides a stack of widgets where only one widget is visible at a time. |
| QStackedWidget | The QStackedWidget class provides a stack of widgets where only one widget is visible at a time. |
| QStyle | The QStyle class is an abstract base class that encapsulates the look and feel of a GUI. |
| QStyleFactory | The QStyleFactory class creates QStyle objects. |
| QStyleHintReturn | The QStyleHintReturn class provides style hints that return more than basic data types. |
| QStyleHintReturnMask | The QStyleHintReturnMask class provides style hints that return a QRegion. |
| QStyleHintReturnVariant | The QStyleHintReturnVariant class provides style hints that return a QVariant. |
| QStyleOption | The QStyleOption class stores the parameters used by QStyle functions. |
| QStylePainter | The QStylePainter class is a convenience class for drawing QStyle elements inside a widget. |
| QVBoxLayout | The QVBoxLayout class lines up widgets vertically. |
| QWidgetItem | The QWidgetItem class is a layout item that represents a widget. |
| QWindowsStyle | The QWindowsStyle class provides a Microsoft Windows-like look and feel. |
| QWindowsVistaStyle | The QWindowsVistaStyle class provides a look and feel suitable for applications on Microsoft Windows Vista. |
| QWindowsXPStyle | The QWindowsXPStyle class provides a Microsoft WindowsXP-like look and feel. |