# QSizeF Class Reference
## [[QtCore](index.htm) module]
该QSizeF类定义了使用浮点精度的二维对象的大小。[More...](#details)
### Methods
* `__init__ (self)`
* `__init__ (self, QSize sz)`
* `__init__ (self, float w, float h)`
* `__init__ (self, QSizeF)`
* `QSizeF boundedTo (self, QSizeF otherSize)`
* `QSizeF expandedTo (self, QSizeF otherSize)`
* `float height (self)`
* `bool isEmpty (self)`
* `bool isNull (self)`
* `bool isValid (self)`
* `scale (self, QSizeF s, Qt.AspectRatioMode mode)`
* `scale (self, float w, float h, Qt.AspectRatioMode mode)`
* `setHeight (self, float h)`
* `setWidth (self, float w)`
* `QSize toSize (self)`
* `transpose (self)`
* `float width (self)`
### Special Methods
* `QSizeF __add__ (self, QSizeF s2)`
* `int __bool__ (self)`
* `QSizeF __div__ (self, float c)`
* `bool __eq__ (self, QSizeF s2)`
* `QSizeF __iadd__ (self, QSizeF s)`
* `QSizeF __idiv__ (self, float c)`
* `QSizeF __imul__ (self, float c)`
* `QSizeF __isub__ (self, QSizeF s)`
* `QSizeF __mul__ (self, float c)`
* `QSizeF __mul__ (self, QSizeF s)`
* `bool __ne__ (self, QSizeF s2)`
* `str __repr__ (self)`
* `QSizeF __sub__ (self, QSizeF s2)`
* * *
## Detailed Description
这个类可以醃制。
该QSizeF类定义了使用浮点精度的二维对象的大小。
大小是由一个指定的[width](qsizef.html#width)（）和一个[height](qsizef.html#height)（ ） 。它可以在构造函数中设置和使用改变了[setWidth](qsizef.html#setWidth)（ ）[setHeight](qsizef.html#setHeight)（） ，或[scale](qsizef.html#scale)（ ）函数，或者使用算术运算符。阿尺寸也可以通过使用检索引用的宽度和高度直接操作[rwidth](qsizef.html#rwidth)（）和[rheight](qsizef.html#rheight)（）函数。最后，将宽度和高度可以使用被交换的[transpose](qsizef.html#transpose)（）函数。
该[isValid](qsizef.html#isValid)（ ）函数判断一个尺寸是有效的。一个有效的大小具有宽度和高度大于或等于零。该[isEmpty](qsizef.html#isEmpty)如果无论是宽度和高度是（ ）函数返回True_less_比（或等于）零，而[isNull](qsizef.html#isNull)只有当二者的宽度和高度是零（）函数返回真。
使用[expandedTo](qsizef.html#expandedTo)（）函数来检索一个尺寸，持有此大小的最大高度和宽度，并在给定的尺寸。类似地，[boundedTo](qsizef.html#boundedTo)（）函数返回一个尺寸，持有此大小的最小高度和宽度，并在给定的尺寸。
该QSizeF类还提供了[toSize](qsizef.html#toSize)（ ）函数返回一个[QSize](qsize.html)这种尺寸的拷贝，通过舍入的宽度和高度为最接近的整数构成。
相比QSizeF对象可以被串流播放以及。
* * *
## Method Documentation
```
QSizeF.__init__ (self)
```
构造一个无效的大小。
**See also** [isValid](qsizef.html#isValid)（ ） 。
```
QSizeF.__init__ (self, QSize sz)
```
构造一个大小与从给定的浮点精确度_size_。
**See also** [toSize](qsizef.html#toSize)（ ） 。
```
QSizeF.__init__ (self, float w, float h)
```
构造一个大小与给定_width_和_height_。
```
QSizeF.__init__ (self, QSizeF)
```
```
QSizeF QSizeF.boundedTo (self, QSizeF otherSize)
```
[
返回一个大小保持这个大小的最小宽度和高度与给定的_otherSize_。
](qsizef.html)
[**See also**](qsizef.html) [expandedTo](qsizef.html#expandedTo)（）和[scale](qsizef.html#scale)（ ） 。
```
QSizeF QSizeF.expandedTo (self, QSizeF otherSize)
```
[
返回一个大小保持这个大小的最大宽度和高度与给定的_otherSize_。
](qsizef.html)
[**See also**](qsizef.html) [boundedTo](qsizef.html#boundedTo)（）和[scale](qsizef.html#scale)（ ） 。
```
float QSizeF.height (self)
```
返回的高度。
**See also** [width](qsizef.html#width)（）和[setHeight](qsizef.html#setHeight)（ ） 。
```
bool QSizeF.isEmpty (self)
```
返回True ，如果不是的宽度和高度小于或等于0 ，否则返回False 。
**See also** [isNull](qsizef.html#isNull)（）和[isValid](qsizef.html#isValid)（ ） 。
```
bool QSizeF.isNull (self)
```
返回True如果宽度和高度分别为0.0 ，否则返回False 。
**Note:**由于此函数将+0.0和-0.0不同，尺寸与零宽度和高度，其中一个或两个值有一个负号没有被定义为空尺寸。
**See also** [isValid](qsizef.html#isValid)（）和[isEmpty](qsizef.html#isEmpty)（ ） 。
```
bool QSizeF.isValid (self)
```
返回True，如果两者的宽度和高度是等于或大于0 ，否则返回假。
**See also** [isNull](qsizef.html#isNull)（）和[isEmpty](qsizef.html#isEmpty)（ ） 。
```
QSizeF.scale (self, QSizeF s, Qt.AspectRatioMode mode)
```
缩放大小的矩形与给定的_width_和_height_，根据指定的_mode_。
* If _mode_ is [Qt.IgnoreAspectRatio](qt.html#AspectRatioMode-enum), the size is set to (_width_, _height_).
* If _mode_ is [Qt.KeepAspectRatio](qt.html#AspectRatioMode-enum), the current size is scaled to a rectangle as large as possible inside (_width_, _height_), preserving the aspect ratio.
* If _mode_ is [Qt.KeepAspectRatioByExpanding](qt.html#AspectRatioMode-enum), the current size is scaled to a rectangle as small as possible outside (_width_, _height_), preserving the aspect ratio.
例如：
```
[QSizeF](qsizef.html) t1(10, 12);
t1.scale(60, 60, [Qt](qt.html).IgnoreAspectRatio);
// t1 is (60, 60)
[QSizeF](qsizef.html) t2(10, 12);
t2.scale(60, 60, [Qt](qt.html).KeepAspectRatio);
// t2 is (50, 60)
[QSizeF](qsizef.html) t3(10, 12);
t3.scale(60, 60, [Qt](qt.html).KeepAspectRatioByExpanding);
// t3 is (60, 72)
```
**See also** [setWidth](qsizef.html#setWidth)（）和[setHeight](qsizef.html#setHeight)（ ） 。
```
QSizeF.scale (self, float w, float h, Qt.AspectRatioMode mode)
```
这是一个重载函数。
缩放大小的矩形与给定的_size_，根据指定的_mode_。
```
QSizeF.setHeight (self, float h)
```
设置高度为给定的_height_。
**See also** [height](qsizef.html#height)（ ）[rheight](qsizef.html#rheight)（）和[setWidth](qsizef.html#setWidth)（ ） 。
```
QSizeF.setWidth (self, float w)
```
设置宽度为给定的_width_。
**See also** [width](qsizef.html#width)（ ）[rwidth](qsizef.html#rwidth)（）和[setHeight](qsizef.html#setHeight)（ ） 。
```
QSize QSizeF.toSize (self)
```
[
返回此尺寸的基于整数的副本。
请注意，在返回的大小的坐标将被四舍五入到最接近的整数。
](qsize.html)
[**See also**](qsize.html) [QSizeF](qsizef.html#QSizeF)（ ） 。
```
QSizeF.transpose (self)
```
交换的宽度和高度的值。
**See also** [setWidth](qsizef.html#setWidth)（）和[setHeight](qsizef.html#setHeight)（ ） 。
```
float QSizeF.width (self)
```
返回的宽度。
**See also** [height](qsizef.html#height)（）和[setWidth](qsizef.html#setWidth)（ ） 。
```
QSizeF QSizeF.__add__ (self, QSizeF s2)
```
[
```
int QSizeF.__bool__ (self)
```
](qsizef.html)
```
QSizeF QSizeF.__div__ (self, float c)
```
[
```
bool QSizeF.__eq__ (self, QSizeF s2)
```
](qsizef.html)
```
QSizeF QSizeF.__iadd__ (self, QSizeF s)
```
[](qsizef.html)
```
QSizeF QSizeF.__idiv__ (self, float c)
```
[](qsizef.html)
```
QSizeF QSizeF.__imul__ (self, float c)
```
[](qsizef.html)
```
QSizeF QSizeF.__isub__ (self, QSizeF s)
```
[](qsizef.html)
```
QSizeF QSizeF.__mul__ (self, float c)
```
[](qsizef.html)
```
QSizeF QSizeF.__mul__ (self, QSizeF s)
```
[
```
bool QSizeF.__ne__ (self, QSizeF s2)
```
```
str QSizeF.__repr__ (self)
```
](qsizef.html)
```
QSizeF QSizeF.__sub__ (self, QSizeF s2)
```
[](qsizef.html)
- PyQt4 中文文档
- PyQt Class Reference
- QAbstractAnimation Class Reference
- QAbstractButton Class Reference
- QAbstractEventDispatcher Class Reference
- QAbstractExtensionFactory Class Reference
- QAbstractExtensionManager Class Reference
- QAbstractFileEngine Class Reference
- QAbstractFileEngineHandler Class Reference
- QAbstractFileEngineIterator Class Reference
- QAbstractFormBuilder Class Reference
- QAbstractGraphicsShapeItem Class Reference
- QAbstractItemDelegate Class Reference
- QAbstractItemModel Class Reference
- QAbstractItemView Class Reference
- QAbstractListModel Class Reference
- QAbstractMessageHandler Class Reference
- QAbstractNetworkCache Class Reference
- QAbstractPrintDialog Class Reference
- QAbstractProxyModel Class Reference
- QAbstractScrollArea Class Reference
- QAbstractSlider Class Reference
- QAbstractSocket Class Reference
- QAbstractSpinBox Class Reference
- QAbstractState Class Reference
- QAbstractTableModel Class Reference
- QAbstractTextDocumentLayout Class Reference
- QAbstractTransition Class Reference
- QAbstractUriResolver Class Reference
- QAbstractVideoBuffer Class Reference
- QAbstractVideoSurface Class Reference
- QAbstractXmlNodeModel Class Reference
- QAbstractXmlReceiver Class Reference
- QAction Class Reference
- QActionEvent Class Reference
- QActionGroup Class Reference
- QAnimationGroup Class Reference
- QApplication Class Reference
- QAssistantClient Class Reference
- QAudio Class Reference
- QAudioDeviceInfo Class Reference
- QAudioFormat Class Reference
- QAudioInput Class Reference
- QAudioOutput Class Reference
- QAuthenticator Class Reference
- QBasicTimer Class Reference
- QBitArray Class Reference
- QBitmap Class Reference
- QBoxLayout Class Reference
- QBrush Class Reference
- QBuffer Class Reference
- QButtonGroup Class Reference
- QByteArray Class Reference
- QByteArrayMatcher Class Reference
- QCalendarWidget Class Reference
- QChar Class Reference
- QCheckBox Class Reference
- QChildEvent Class Reference
- QClipboard Class Reference
- QCloseEvent Class Reference
- QColor Class Reference
- QColorDialog Class Reference
- QColumnView Class Reference
- QComboBox Class Reference
- QCommandLinkButton Class Reference
- QCommonStyle Class Reference
- QCompleter Class Reference
- QConicalGradient Class Reference
- QContextMenuEvent Class Reference
- QCoreApplication Class Reference
- QCryptographicHash Class Reference
- QCursor Class Reference
- QDataStream Class Reference
- QDataWidgetMapper Class Reference
- QDate Class Reference
- QDateEdit Class Reference
- QDateTime Class Reference
- QDateTimeEdit Class Reference
- QDBus Class Reference
- QDBusAbstractAdaptor Class Reference
- QDBusAbstractInterface Class Reference
- QDBusArgument Class Reference
- QDBusConnection Class Reference
- QDBusConnectionInterface Class Reference
- QDBusError Class Reference
- QDBusInterface Class Reference
- QDBusMessage Class Reference
- QDBusObjectPath Class Reference
- QDBusPendingCall Class Reference
- QDBusPendingCallWatcher Class Reference
- QDBusPendingReply Class Reference
- QDBusReply Class Reference
- QDBusServiceWatcher Class Reference
- QDBusSignature Class Reference
- QDBusUnixFileDescriptor Class Reference
- QDBusVariant Class Reference
- QDeclarativeComponent Class Reference
- QDeclarativeContext Class Reference
- QDeclarativeEngine Class Reference
- QDeclarativeError Class Reference
- QDeclarativeExpression Class Reference
- QDeclarativeExtensionPlugin Class Reference
- QDeclarativeImageProvider Class Reference
- QDeclarativeItem Class Reference
- QDeclarativeListReference Class Reference
- QDeclarativeNetworkAccessManagerFactory Class Reference
- QDeclarativeParserStatus Class Reference
- QDeclarativeProperty Class Reference
- QDeclarativePropertyMap Class Reference
- QDeclarativePropertyValueSource Class Reference
- QDeclarativeScriptString Class Reference
- QDeclarativeView Class Reference
- QDesignerActionEditorInterface Class Reference
- QDesignerContainerExtension Class Reference
- QDesignerCustomWidgetCollectionInterface Class Reference
- QDesignerCustomWidgetInterface Class Reference
- QDesignerFormEditorInterface Class Reference
- QDesignerFormWindowCursorInterface Class Reference
- QDesignerFormWindowInterface Class Reference
- QDesignerFormWindowManagerInterface Class Reference
- QDesignerMemberSheetExtension Class Reference
- QDesignerObjectInspectorInterface Class Reference
- QDesignerPropertyEditorInterface Class Reference
- QDesignerPropertySheetExtension Class Reference
- QDesignerTaskMenuExtension Class Reference
- QDesignerWidgetBoxInterface Class Reference
- QDesktopServices Class Reference
- QDesktopWidget Class Reference
- QDial Class Reference
- QDialog Class Reference
- QDialogButtonBox Class Reference
- QDir Class Reference
- QDirIterator Class Reference
- QDirModel Class Reference
- QDockWidget Class Reference
- QDomAttr Class Reference
- QDomCDATASection Class Reference
- QDomCharacterData Class Reference
- QDomComment Class Reference
- QDomDocument Class Reference
- QDomDocumentFragment Class Reference
- QDomDocumentType Class Reference
- QDomElement Class Reference
- QDomEntity Class Reference
- QDomEntityReference Class Reference
- QDomImplementation Class Reference
- QDomNamedNodeMap Class Reference
- QDomNode Class Reference
- QDomNodeList Class Reference
- QDomNotation Class Reference
- QDomProcessingInstruction Class Reference
- QDomText Class Reference
- QDoubleSpinBox Class Reference
- QDoubleValidator Class Reference
- QDrag Class Reference
- QDragEnterEvent Class Reference
- QDragLeaveEvent Class Reference
- QDragMoveEvent Class Reference
- QDropEvent Class Reference
- QDynamicPropertyChangeEvent Class Reference
- QEasingCurve Class Reference
- QElapsedTimer Class Reference
- QErrorMessage Class Reference
- QEvent Class Reference
- QEventLoop Class Reference
- QEventTransition Class Reference
- QExtensionFactory Class Reference
- QExtensionManager Class Reference
- QFile Class Reference
- QFileDialog Class Reference
- QFileIconProvider Class Reference
- QFileInfo Class Reference
- QFileOpenEvent Class Reference
- QFileSystemModel Class Reference
- QFileSystemWatcher Class Reference
- QFinalState Class Reference
- QFocusEvent Class Reference
- QFocusFrame Class Reference
- QFont Class Reference
- QFontComboBox Class Reference
- QFontDatabase Class Reference
- QFontDialog Class Reference
- QFontInfo Class Reference
- QFontMetrics Class Reference
- QFontMetricsF Class Reference
- QFormBuilder Class Reference
- QFormLayout Class Reference
- QFrame Class Reference
- QFSFileEngine Class Reference
- QFtp Class Reference
- QGenericArgument Class Reference
- QGenericReturnArgument Class Reference
- QGesture Class Reference
- QGestureEvent Class Reference
- QGestureRecognizer Class Reference
- QGL Class Reference
- QGLBuffer Class Reference
- QGLColormap Class Reference
- QGLContext Class Reference
- QGLFormat Class Reference
- QGLFramebufferObject Class Reference
- QGLFramebufferObjectFormat Class Reference
- QGLPixelBuffer Class Reference
- QGLShader Class Reference
- QGLShaderProgram Class Reference
- QGLWidget Class Reference
- QGlyphRun Class Reference
- QGradient Class Reference
- QGraphicsAnchor Class Reference
- QGraphicsAnchorLayout Class Reference
- QGraphicsBlurEffect Class Reference
- QGraphicsColorizeEffect Class Reference
- QGraphicsDropShadowEffect Class Reference
- QGraphicsEffect Class Reference
- QGraphicsEllipseItem Class Reference
- QGraphicsGridLayout Class Reference
- QGraphicsItem Class Reference
- QGraphicsItemAnimation Class Reference
- QGraphicsItemGroup Class Reference
- QGraphicsLayout Class Reference
- QGraphicsLayoutItem Class Reference
- QGraphicsLinearLayout Class Reference
- QGraphicsLineItem Class Reference
- QGraphicsObject Class Reference
- QGraphicsOpacityEffect Class Reference
- QGraphicsPathItem Class Reference
- QGraphicsPixmapItem Class Reference
- QGraphicsPolygonItem Class Reference
- QGraphicsProxyWidget Class Reference
- QGraphicsRectItem Class Reference
- QGraphicsRotation Class Reference
- QGraphicsScale Class Reference
- QGraphicsScene Class Reference
- QGraphicsSceneContextMenuEvent Class Reference
- QGraphicsSceneDragDropEvent Class Reference
- QGraphicsSceneEvent Class Reference
- QGraphicsSceneHelpEvent Class Reference
- QGraphicsSceneHoverEvent Class Reference
- QGraphicsSceneMouseEvent Class Reference
- QGraphicsSceneMoveEvent Class Reference
- QGraphicsSceneResizeEvent Class Reference
- QGraphicsSceneWheelEvent Class Reference
- QGraphicsSimpleTextItem Class Reference
- QGraphicsSvgItem Class Reference
- QGraphicsTextItem Class Reference
- QGraphicsTransform Class Reference
- QGraphicsView Class Reference
- QGraphicsWebView Class Reference
- QGraphicsWidget Class Reference
- QGridLayout Class Reference
- QGroupBox Class Reference
- QHBoxLayout Class Reference
- QHeaderView Class Reference
- QHelpContentItem Class Reference
- QHelpContentModel Class Reference
- QHelpContentWidget Class Reference
- QHelpEngine Class Reference
- QHelpEngineCore Class Reference
- QHelpEvent Class Reference
- QHelpIndexModel Class Reference
- QHelpIndexWidget Class Reference
- QHelpSearchEngine Class Reference
- QHelpSearchQuery Class Reference
- QHelpSearchQueryWidget Class Reference
- QHelpSearchResultWidget Class Reference
- QHideEvent Class Reference
- QHistoryState Class Reference
- QHostAddress Class Reference
- QHostInfo Class Reference
- QHoverEvent Class Reference
- QHttp Class Reference
- QHttpHeader Class Reference
- QHttpMultiPart Class Reference
- QHttpPart Class Reference
- QHttpRequestHeader Class Reference
- QHttpResponseHeader Class Reference
- QIcon Class Reference
- QIconDragEvent Class Reference
- QIconEngine Class Reference
- QIconEngineV2 Class Reference
- QIdentityProxyModel Class Reference
- QImage Class Reference
- QImageIOHandler Class Reference
- QImageReader Class Reference
- QImageWriter Class Reference
- QInputContext Class Reference
- QInputContextFactory Class Reference
- QInputDialog Class Reference
- QInputEvent Class Reference
- QInputMethodEvent Class Reference
- QIntValidator Class Reference
- QIODevice Class Reference
- QItemDelegate Class Reference
- QItemEditorCreatorBase Class Reference
- QItemEditorFactory Class Reference
- QItemSelection Class Reference
- QItemSelectionModel Class Reference
- QItemSelectionRange Class Reference
- QKeyEvent Class Reference
- QKeyEventTransition Class Reference
- QKeySequence Class Reference
- QLabel Class Reference
- QLatin1Char Class Reference
- QLatin1String Class Reference
- QLayout Class Reference
- QLayoutItem Class Reference
- QLCDNumber Class Reference
- QLibrary Class Reference
- QLibraryInfo Class Reference
- QLine Class Reference
- QLinearGradient Class Reference
- QLineEdit Class Reference
- QLineF Class Reference
- QListView Class Reference
- QListWidget Class Reference
- QListWidgetItem Class Reference
- QLocale Class Reference
- QLocalServer Class Reference
- QLocalSocket Class Reference
- QMainWindow Class Reference
- QMargins Class Reference
- QMatrix Class Reference
- QMatrix2x2 Class Reference
- QMatrix2x3 Class Reference
- QMatrix2x4 Class Reference
- QMatrix3x2 Class Reference
- QMatrix3x3 Class Reference
- QMatrix3x4 Class Reference
- QMatrix4x2 Class Reference
- QMatrix4x3 Class Reference
- QMatrix4x4 Class Reference
- QMdiArea Class Reference
- QMdiSubWindow Class Reference
- QMenu Class Reference
- QMenuBar Class Reference
- QMessageBox Class Reference
- QMetaClassInfo Class Reference
- QMetaEnum Class Reference
- QMetaMethod Class Reference
- QMetaObject Class Reference
- QMetaProperty Class Reference
- QMetaType Class Reference
- QMimeData Class Reference
- QMimeSource Class Reference
- QModelIndex Class Reference
- QMouseEvent Class Reference
- QMouseEventTransition Class Reference
- QMoveEvent Class Reference
- QMovie Class Reference
- QMutex Class Reference
- QMutexLocker Class Reference
- QNetworkAccessManager Class Reference
- QNetworkAddressEntry Class Reference
- QNetworkCacheMetaData Class Reference
- QNetworkConfiguration Class Reference
- QNetworkConfigurationManager Class Reference
- QNetworkCookie Class Reference
- QNetworkCookieJar Class Reference
- QNetworkDiskCache Class Reference
- QNetworkInterface Class Reference
- QNetworkProxy Class Reference
- QNetworkProxyFactory Class Reference
- QNetworkProxyQuery Class Reference
- QNetworkReply Class Reference
- QNetworkRequest Class Reference
- QNetworkSession Class Reference
- QObject Class Reference
- QObjectCleanupHandler Class Reference
- QPageSetupDialog Class Reference
- QPaintDevice Class Reference
- QPaintEngine Class Reference
- QPaintEngineState Class Reference
- QPainter Class Reference
- QPainterPath Class Reference
- QPainterPathStroker Class Reference
- QPaintEvent Class Reference
- QPalette Class Reference
- QPanGesture Class Reference
- QParallelAnimationGroup Class Reference
- QPauseAnimation Class Reference
- QPen Class Reference
- QPersistentModelIndex Class Reference
- QPicture Class Reference
- QPictureIO Class Reference
- QPinchGesture Class Reference
- QPixmap Class Reference
- QPixmapCache Class Reference
- QPlainTextDocumentLayout Class Reference
- QPlainTextEdit Class Reference
- QPluginLoader Class Reference
- QPoint Class Reference
- QPointF Class Reference
- QPolygon Class Reference
- QPolygonF Class Reference
- QPrintDialog Class Reference
- QPrintEngine Class Reference
- QPrinter Class Reference
- QPrinterInfo Class Reference
- QPrintPreviewDialog Class Reference
- QPrintPreviewWidget Class Reference
- QProcess Class Reference
- QProcessEnvironment Class Reference
- QProgressBar Class Reference
- QProgressDialog Class Reference
- QPropertyAnimation Class Reference
- QProxyModel Class Reference
- QPushButton Class Reference
- QPyDeclarativePropertyValueSource Class Reference
- QPyDesignerContainerExtension Class Reference
- QPyDesignerCustomWidgetCollectionPlugin Class Reference
- QPyDesignerCustomWidgetPlugin Class Reference
- QPyDesignerMemberSheetExtension Class Reference
- QPyDesignerPropertySheetExtension Class Reference
- QPyDesignerTaskMenuExtension Class Reference
- QPyNullVariant Class Reference
- QPyTextObject Class Reference
- QQuaternion Class Reference
- QRadialGradient Class Reference
- QRadioButton Class Reference
- QRawFont Class Reference
- QReadLocker Class Reference
- QReadWriteLock Class Reference
- QRect Class Reference
- QRectF Class Reference
- QRegExp Class Reference
- QRegExpValidator Class Reference
- QRegion Class Reference
- QResizeEvent Class Reference
- QResource Class Reference
- QRubberBand Class Reference
- QRunnable Class Reference
- QScriptClass Class Reference
- QScriptClassPropertyIterator Class Reference
- QScriptContext Class Reference
- QScriptContextInfo Class Reference
- QScriptEngine Class Reference
- QScriptEngineAgent Class Reference
- QScriptEngineDebugger Class Reference
- QScriptString Class Reference
- QScriptSyntaxCheckResult Class Reference
- QScriptValue Class Reference
- QScriptValueIterator Class Reference
- QScrollArea Class Reference
- QScrollBar Class Reference
- QSemaphore Class Reference
- QSequentialAnimationGroup Class Reference
- QSessionManager Class Reference
- QSettings Class Reference
- QSharedMemory Class Reference
- QShortcut Class Reference
- QShortcutEvent Class Reference
- QShowEvent Class Reference
- QSignalMapper Class Reference
- QSignalTransition Class Reference
- QSimpleXmlNodeModel Class Reference
- QSize Class Reference
- QSizeF Class Reference
- QSizeGrip Class Reference
- QSizePolicy Class Reference
- QSlider Class Reference
- QSocketNotifier Class Reference
- QSortFilterProxyModel Class Reference
- QSound Class Reference
- QSourceLocation Class Reference
- QSpacerItem Class Reference
- QSpinBox Class Reference
- QSplashScreen Class Reference
- QSplitter Class Reference
- QSplitterHandle Class Reference
- QSql Class Reference
- QSqlDatabase Class Reference
- QSqlDriver Class Reference
- QSqlDriverCreatorBase Class Reference
- QSqlError Class Reference
- QSqlField Class Reference
- QSqlIndex Class Reference
- QSqlQuery Class Reference
- QSqlQueryModel Class Reference
- QSqlRecord Class Reference
- QSqlRelation Class Reference
- QSqlRelationalDelegate Class Reference
- QSqlRelationalTableModel Class Reference
- QSqlResult Class Reference
- QSqlTableModel Class Reference
- Qt4.7文档翻译：Qt样式单参考,Qt Style Sheets Reference
- QSsl Class Reference
- QSslCertificate Class Reference
- QSslCipher Class Reference
- QSslConfiguration Class Reference
- QSslError Class Reference
- QSslKey Class Reference
- QSslSocket Class Reference
- QStackedLayout Class Reference
- QStackedWidget Class Reference
- QStandardItem Class Reference
- QStandardItemModel Class Reference
- QState Class Reference
- QStateMachine Class Reference
- QStaticText Class Reference
- QStatusBar Class Reference
- QStatusTipEvent Class Reference
- QString Class Reference
- QStringList Class Reference
- QStringListModel Class Reference
- QStringMatcher Class Reference
- QStringRef Class Reference
- QStyle Class Reference
- QStyledItemDelegate Class Reference
- QStyleFactory Class Reference
- QStyleHintReturn Class Reference
- QStyleHintReturnMask Class Reference
- QStyleHintReturnVariant Class Reference
- QStyleOption Class Reference
- QStyleOptionButton Class Reference
- QStyleOptionComboBox Class Reference
- QStyleOptionComplex Class Reference
- QStyleOptionDockWidget Class Reference
- QStyleOptionDockWidgetV2 Class Reference
- QStyleOptionFocusRect Class Reference
- QStyleOptionFrame Class Reference
- QStyleOptionFrameV2 Class Reference
- QStyleOptionFrameV3 Class Reference
- QStyleOptionGraphicsItem Class Reference
- QStyleOptionGroupBox Class Reference
- QStyleOptionHeader Class Reference
- QStyleOptionMenuItem Class Reference
- QStyleOptionProgressBar Class Reference
- QStyleOptionProgressBarV2 Class Reference
- QStyleOptionRubberBand Class Reference
- QStyleOptionSizeGrip Class Reference
- QStyleOptionSlider Class Reference
- QStyleOptionSpinBox Class Reference
- QStyleOptionTab Class Reference
- QStyleOptionTabBarBase Class Reference
- QStyleOptionTabBarBaseV2 Class Reference
- QStyleOptionTabV2 Class Reference
- QStyleOptionTabV3 Class Reference
- QStyleOptionTabWidgetFrame Class Reference
- QStyleOptionTabWidgetFrameV2 Class Reference
- QStyleOptionTitleBar Class Reference
- QStyleOptionToolBar Class Reference
- QStyleOptionToolBox Class Reference
- QStyleOptionToolBoxV2 Class Reference
- QStyleOptionToolButton Class Reference
- QStyleOptionViewItem Class Reference
- QStyleOptionViewItemV2 Class Reference
- QStyleOptionViewItemV3 Class Reference
- QStyleOptionViewItemV4 Class Reference
- QStylePainter Class Reference
- QSvgGenerator Class Reference
- QSvgRenderer Class Reference
- QSvgWidget Class Reference
- QSwipeGesture Class Reference
- QSyntaxHighlighter Class Reference
- QSysInfo Class Reference
- QSystemLocale Class Reference
- QSystemSemaphore Class Reference
- QSystemTrayIcon Class Reference
- Qt Class Reference
- QTabBar Class Reference
- QTabletEvent Class Reference
- QTableView Class Reference
- QTableWidget Class Reference
- QTableWidgetItem Class Reference
- QTableWidgetSelectionRange Class Reference
- QTabWidget Class Reference
- QTapAndHoldGesture Class Reference
- QTapGesture Class Reference
- QTcpServer Class Reference
- QTcpSocket Class Reference
- QTemporaryFile Class Reference
- QTest Class Reference
- QTextBlock Class Reference
- QTextBlockFormat Class Reference
- QTextBlockGroup Class Reference
- QTextBlockUserData Class Reference
- QTextBoundaryFinder Class Reference
- QTextBrowser Class Reference
- QTextCharFormat Class Reference
- QTextCodec Class Reference
- QTextCursor Class Reference
- QTextDecoder Class Reference
- QTextDocument Class Reference
- QTextDocumentFragment Class Reference
- QTextDocumentWriter Class Reference
- QTextEdit Class Reference
- QTextEncoder Class Reference
- QTextFormat Class Reference
- QTextFragment Class Reference
- QTextFrame Class Reference
- QTextFrameFormat Class Reference
- QTextImageFormat Class Reference
- QTextInlineObject Class Reference
- QTextItem Class Reference
- QTextLayout Class Reference
- QTextLength Class Reference
- QTextLine Class Reference
- QTextList Class Reference
- QTextListFormat Class Reference
- QTextObject Class Reference
- QTextObjectInterface Class Reference
- QTextOption Class Reference
- QTextStream Class Reference
- QTextTable Class Reference
- QTextTableCell Class Reference
- QTextTableCellFormat Class Reference
- QTextTableFormat Class Reference
- QThread Class Reference
- QThreadPool Class Reference
- QTime Class Reference
- QTimeEdit Class Reference
- QTimeLine Class Reference
- QTimer Class Reference
- QTimerEvent Class Reference
- QToolBar Class Reference
- QToolBox Class Reference
- QToolButton Class Reference
- QToolTip Class Reference
- QTouchEvent Class Reference
- Reference
- QTransform Class Reference
- QTranslator Class Reference
- QTreeView Class Reference
- QTreeWidget Class Reference
- QTreeWidgetItem Class Reference
- QTreeWidgetItemIterator Class Reference
- QUdpSocket Class Reference
- QUndoCommand Class Reference
- QUndoGroup Class Reference
- QUndoStack Class Reference
- QUndoView Class Reference
- QUrl Class Reference
- QUrlInfo Class Reference
- QUuid Class Reference
- QValidator Class Reference
- QVariant Class Reference
- QVariantAnimation Class Reference
- QVBoxLayout Class Reference
- QVector2D Class Reference
- QVector3D Class Reference
- QVector4D Class Reference
- QVideoFrame Class Reference
- QVideoSurfaceFormat Class Reference
- QWaitCondition Class Reference
- QWebDatabase Class Reference
- QWebElement Class Reference
- QWebElementCollection Class Reference
- QWebFrame Class Reference
- QWebHistory Class Reference
- QWebHistoryInterface Class Reference
- QWebHistoryItem Class Reference
- QWebHitTestResult Class Reference
- QWebInspector Class Reference
- QWebPage Class Reference
- QWebPluginFactory Class Reference
- QWebSecurityOrigin Class Reference
- QWebSettings Class Reference
- QWebView Class Reference
- QWhatsThis Class Reference
- QWhatsThisClickedEvent Class Reference
- QWheelEvent Class Reference
- QWidget Class Reference
- QWidgetAction Class Reference
- QWidgetItem Class Reference
- QWindowStateChangeEvent Class Reference
- QWizard Class Reference
- QWizardPage Class Reference
- QWorkspace Class Reference
- QWriteLocker Class Reference
- QX11EmbedContainer Class Reference
- QX11EmbedWidget Class Reference
- QX11Info Class Reference
- QXmlAttributes Class Reference
- QXmlContentHandler Class Reference
- QXmlDeclHandler Class Reference
- QXmlDefaultHandler Class Reference
- QXmlDTDHandler Class Reference
- QXmlEntityResolver Class Reference
- QXmlErrorHandler Class Reference
- QXmlFormatter Class Reference
- QXmlInputSource Class Reference
- QXmlItem Class Reference
- QXmlLexicalHandler Class Reference
- QXmlLocator Class Reference
- QXmlName Class Reference
- QXmlNamePool Class Reference
- QXmlNamespaceSupport Class Reference
- QXmlNodeModelIndex Class Reference
- QXmlParseException Class Reference
- QXmlQuery Class Reference
- QXmlReader Class Reference
- QXmlResultItems Class Reference
- QXmlSchema Class Reference
- QXmlSchemaValidator Class Reference
- QXmlSerializer Class Reference
- QXmlSimpleReader Class Reference
- QXmlStreamAttribute Class Reference
- QXmlStreamAttributes Class Reference
- QXmlStreamEntityDeclaration Class Reference
- QXmlStreamEntityResolver Class Reference
- QXmlStreamNamespaceDeclaration Class Reference
- QXmlStreamNotationDeclaration Class Reference
- QXmlStreamReader Class Reference
- QXmlStreamWriter Class Reference