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Qt's Main Classes

These are the most frequently used Qt classes. For the complete list see Qt's Classes.

A	QAbstractItemDelegate		QFrame		QPalette		QStack
	QAbstractItemModel		QFtp		QPen		QStackedLayout
	QAbstractItemView	G	QGLWidget		QPicture		QStackedWidget
	QAccessible		QGraphicsScene		QPixmap		QStatusBar
	QAction		QGraphicsView		QPlainTextEdit		QString
	QApplication		QGridLayout		QPluginLoader		QStringList
B	QButtonGroup		QGroupBox		QPointer		QStringListModel
	QByteArray	H	QHash		QPrinter		QStyledItemDelegate
C	QCache		QHBoxLayout		QProcess	T	QTabBar
	QCalendarWidget		QHeaderView		QProgressBar		QTableView
	QCheckBox		QHttp		QProgressDialog		QTableWidget
	QClipboard	I	QIcon		QPushButton		QTabWidget
	QColor		QImage	Q	QQueue		QTemporaryFile
	QColorDialog		QInputDialog	R	QRadioButton		QTextCursor
	QColumnView		QItemDelegate		QRegExp		QTextDocument
	QComboBox	K	QKeySequence		QResource		QTextEdit
	QCommandLinkButton	L	QLabel		QRubberBand		QThread
	QCoreApplication		QLCDNumber	S	QScriptable		QThreadStorage
	QCursor		QLibrary		QScriptClass		QTime
D	QDataStream		QLibraryInfo		QScriptContext		QTimeEdit
	QDate		QLineEdit		QScriptContextInfo		QTimer
	QDateEdit		QLinkedList		QScriptEngine		QToolBar
	QDateTime		QList		QScriptEngineAgent		QToolBox
	QDateTimeEdit		QListView		QScriptString		QToolButton
	QDial		QListWidget		QScriptValue		QToolTip
	QDialog		QLocale		QScriptValueIterator		QTranslator
	QDialogButtonBox	M	QMainWindow		QScrollArea		QTreeView
	QDir		QMap		QSet		QTreeWidget
	QDomDocument		QMdiArea		QSettings	U	QUrl
	QDomNode		QMdiSubWindow		QSharedDataPointer	V	QValidator
	QDoubleSpinBox		QMenu		QShortcut		QVariant
E	QExplicitlySharedDataPointer		QMenuBar		QSignalMapper		QVBoxLayout
F	QFile		QMessageBox		QSlider		QVector
	QFileDialog		QModelIndex		QSound	W	QWhatsThis
	QFlags		QMultiHash		QSpinBox		QWidget
	QFocusFrame		QMultiMap		QSplashScreen		QWidgetAction
	QFont		QMutex		QSplitter	X	QXmlSimpleReader
	QFontDialog	O	QObject		QSqlDatabase		QXmlStreamReader
	QFormLayout	P	QPainter		QSqlQuery		QXmlStreamWriter

Trademarks

Qt 4.4.0