# QCursor Class Reference
## [[QtGui](index.htm) module]
该QCursor类提供一个鼠标光标具有任意形状。[More...](#details)
### Methods
* `__init__ (self)`
* `__init__ (self, Qt.CursorShape shape)`
* `__init__ (self, QBitmap bitmap, QBitmap mask, int hotX = -1, int hotY = -1)`
* `__init__ (self, QPixmap pixmap, int hotX = -1, int hotY = -1)`
* `__init__ (self, QCursor cursor)`
* `__init__ (self, QVariant variant)`
* `QBitmap bitmap (self)`
* `QPoint hotSpot (self)`
* `QBitmap mask (self)`
* `QPixmap pixmap (self)`
* `setShape (self, Qt.CursorShape newShape)`
* `Qt.CursorShape shape (self)`
### Static Methods
* `QPoint pos ()`
* `setPos (int x, int y)`
* `setPos (QPoint p)`
* * *
## Detailed Description
A [Qt.CursorShape](qt.html#CursorShape-enum)可用于每当一个[QCursor](qcursor.html)预计。
该QCursor类提供一个鼠标光标具有任意形状。
这个类主要用来创建与特定的小部件关联的鼠标光标,并获取和设置鼠标光标的位置。
Qt拥有一系列标准光标形状,而是根据你也可以自定义光标形状[QBitmap](qbitmap.html),口罩和热点。
一个游标,窗口小部件,使用相关联[QWidget.setCursor](qwidget.html#cursor-prop)( ) 。以一个游标的所有部件(通常为很短的时间内) ,使用关联[QApplication.setOverrideCursor](qapplication.html#setOverrideCursor)( ) 。
要设置光标形状的使用[QCursor.setShape](qcursor.html#setShape)( )或使用QCursor构造函数需要的形状作为参数,也可以使用在定义的预定义光标中的一个[Qt.CursorShape](qt.html#CursorShape-enum)枚举。
如果你想创建一个游标与自己的位图,或者使用QCursor构造函数,它接受一个位图和口罩或这需要一个像素图作为参数的构造函数。
设置或获取鼠标光标的位置使用静态方法[QCursor.pos](qcursor.html#pos)()和[QCursor.setPos](qcursor.html#setPos)( ) 。
**Note:**这是可能的前创建QCursor[QApplication](qapplication.html),但它不是只是作为一个佔位之后创建一个真正的QCursor有用[QApplication](qapplication.html)。尝试使用之前创建的QCursor[QApplication](qapplication.html)会导致系统崩溃。
### A Note for X11 Users
在X11上, Qt支持[Xcursor](http://www.xfree86.org/4.3.0/Xcursor.3.html)库,它允许全彩色图标主题。下表显示了用于每个游标名[Qt.CursorShape](qt.html#CursorShape-enum)值。如果游标不能使用下面的名称被发现,一个标准的X11光标将被代替使用。注: X11并没有对所有可能提供适当的游标[Qt.CursorShape](qt.html#CursorShape-enum)值。这可能是一些游标将取自Xcursor主题,而另一些将使用的内部位图的光标。
| Shape | [Qt.CursorShape](qt.html#CursorShape-enum) Value | Cursor Name | Shape | [Qt.CursorShape](qt.html#CursorShape-enum) Value | Cursor Name |
| --- | --- | --- | --- | --- | --- |
| ![](https://img.kancloud.cn/13/d6/13d699b563f24979498199be51d50a28_25x25.png) | [Qt.ArrowCursor](qt.html#CursorShape-enum) | `left_ptr` | ![](https://img.kancloud.cn/5f/8f/5f8f29fb417ac660fbe5e23edb82c124_25x25.png) | [Qt.SizeVerCursor](qt.html#CursorShape-enum) | `size_ver` |
| ![](https://img.kancloud.cn/dd/c0/ddc0c2b593d717260ca4fe95e524abb3_25x25.png) | [Qt.UpArrowCursor](qt.html#CursorShape-enum) | `up_arrow` | ![](https://img.kancloud.cn/70/81/7081dc96504aadc4680debb820a41afc_25x25.png) | [Qt.SizeHorCursor](qt.html#CursorShape-enum) | `size_hor` |
| ![](https://img.kancloud.cn/f1/f9/f1f90211225e3982c0e6c562b9bb09ff_25x25.png) | [Qt.CrossCursor](qt.html#CursorShape-enum) | `cross` | ![](https://img.kancloud.cn/0f/f0/0ff08c394d7b26213278d369b4040523_25x25.png) | [Qt.SizeBDiagCursor](qt.html#CursorShape-enum) | `size_bdiag` |
| ![](https://img.kancloud.cn/09/20/0920b0f7649e1708e43ad2ac411130fd_25x25.png) | [Qt.IBeamCursor](qt.html#CursorShape-enum) | `ibeam` | ![](https://img.kancloud.cn/fc/39/fc3939c144ab67fb993a390ea35aa38e_25x25.png) | [Qt.SizeFDiagCursor](qt.html#CursorShape-enum) | `size_fdiag` |
| ![](https://img.kancloud.cn/43/3e/433e8a00a92b71a250f9e0bb3a31a296_25x25.png) | [Qt.WaitCursor](qt.html#CursorShape-enum) | `wait` | ![](https://img.kancloud.cn/1c/ee/1ceeebf06526432aa2c8faa5cad54e5d_25x25.png) | [Qt.SizeAllCursor](qt.html#CursorShape-enum) | `size_all` |
| ![](https://img.kancloud.cn/22/38/223846c70a28481c34e8daab62d9cfd0_32x32.png) | [Qt.BusyCursor](qt.html#CursorShape-enum) | `left_ptr_watch` | ![](https://img.kancloud.cn/17/29/1729c666b258ef7689027b3937b2c05d_25x25.png) | [Qt.SplitVCursor](qt.html#CursorShape-enum) | `split_v` |
| ![](https://img.kancloud.cn/22/b5/22b53e65da32110c3260f4c4eb4aee84_25x25.png) | [Qt.ForbiddenCursor](qt.html#CursorShape-enum) | `forbidden` | ![](https://img.kancloud.cn/d0/84/d08475260d43d88580833e881704221e_25x25.png) | [Qt.SplitHCursor](qt.html#CursorShape-enum) | `split_h` |
| ![](https://img.kancloud.cn/e7/9a/e79a530bf3ae88f9e00113433ad12901_25x25.png) | [Qt.PointingHandCursor](qt.html#CursorShape-enum) | `pointing_hand` | ![](https://img.kancloud.cn/31/69/316997c32537b9bd3d080513e37ef247_16x16.png) | [Qt.OpenHandCursor](qt.html#CursorShape-enum) | `openhand` |
| ![](https://img.kancloud.cn/6b/5d/6b5d9d816ea29234d6a0794e92e57c7c_32x32.png) | [Qt.WhatsThisCursor](qt.html#CursorShape-enum) | `whats_this` | ![](https://img.kancloud.cn/1b/86/1b86ed3c4599a27c4f55342d68407b19_16x16.png) | [Qt.ClosedHandCursor](qt.html#CursorShape-enum) | `closedhand` |
| | [Qt.DragMoveCursor](qt.html#CursorShape-enum) | `dnd-move` or `move` | | [Qt.DragCopyCursor](qt.html#CursorShape-enum) | `dnd-copy` or `copy` |
| | [Qt.DragLinkCursor](qt.html#CursorShape-enum) | `dnd-link` or `link` |
* * *
## Method Documentation
```
QCursor.__init__ (self)
```
构造一个游标默认的箭头形状。
```
QCursor.__init__ (self, Qt.CursorShape shape)
```
构造一个光标指定_shape_。
See [Qt.CursorShape](qt.html#CursorShape-enum)对于形状的列表。
**See also** [setShape](qcursor.html#setShape)( ) 。
```
QCursor.__init__ (self, QBitmap bitmap, QBitmap mask, int hotX = -1, int hotY = -1)
```
构造一个自定义位图的光标。
_bitmap_和_mask_补位图。_hotX_和_hotY_定义游标的热点。
If _hotX_是否定的,它被设置为`bitmap().width()/2`。如果_hotY_是否定的,它被设置为`bitmap().height()/2`。
光标_bitmap_(B)和_mask_(M )位组合是这样的:
* B=1 and M=1 gives black.
* B=0 and M=1 gives white.
* B=0 and M=0 gives transparent.
* B=1 and M=0 gives an XOR'd result under Windows, undefined results on all other platforms.
使用全局Qt的颜色[Qt.color0](qt.html#GlobalColor-enum)绘制0像素和[Qt.color1](qt.html#GlobalColor-enum)绘制1像素的位图。
有效的光标的大小取决于显示硬件(或底层窗口系统) 。我们建议采用32 ×32的游标,因为这个大小是所有平台都支持。有些平台还支持16×16 , 48 ×480和64×64的游标。
**Note:**在Windows CE上,光标的大小是固定的。如果像素映像大于系统的大小,它会被缩放。
**See also** [QBitmap.QBitmap](qbitmap.html#QBitmap)()和[QBitmap.setMask](qpixmap.html#setMask)( ) 。
```
QCursor.__init__ (self, QPixmap pixmap, int hotX = -1, int hotY = -1)
```
构造一个自定义的像素图的光标。
_pixmap_是图像。这是通常给它一个口罩使用(集[QPixmap.setMask](qpixmap.html#setMask)())。_hotX_和_hotY_定义游标的热点。
If _hotX_是否定的,它被设置为`pixmap().width()/2`。如果_hotY_是否定的,它被设置为`pixmap().height()/2`。
有效的光标的大小取决于显示硬件(或底层窗口系统) 。我们建议采用32 ×32的游标,因为这个大小是所有平台都支持。有些平台还支持16×16 , 48 ×480和64×64的游标。
**Note:**在Windows CE上,光标的大小是固定的。如果像素映像大于系统的大小,它会被缩放。
**See also** [QPixmap.QPixmap](qpixmap.html#QPixmap)()和[QPixmap.setMask](qpixmap.html#setMask)( ) 。
```
QCursor.__init__ (self, QCursor cursor)
```
构造游标的副本_c_。
```
QCursor.__init__ (self, QVariant variant)
```
构造一个Qt光标从给定的Windows_cursor_。
**Warning:**此功能仅适用于Windows。
**See also** [handle](qcursor.html#handle)( ) 。
```
QBitmap QCursor.bitmap (self)
```
[
返回光标的位图,或者0 ,如果它是标准的游标之一。
](qbitmap.html)
```
QPoint QCursor.hotSpot (self)
```
[
返回光标的热点,或( 0 , 0 ) ,如果它是标准的游标之一。
](qpoint.html)
```
QBitmap QCursor.mask (self)
```
[
返回光标的位图掩码,或者0 ,如果它是标准的游标之一。
](qbitmap.html)
```
QPixmap QCursor.pixmap (self)
```
[
返回游标像素图。这是唯一有效的,如果游标是一个像素图的光标。
](qpixmap.html)
```
QPoint QCursor.pos ()
```
[
返回光标(热点)在全球屏幕坐标的位置。
](qpoint.html)
[您可以致电](qpoint.html)[QWidget.mapFromGlobal](qwidget.html#mapFromGlobal)()把它翻译出来给小部件的坐标。
**See also** [setPos](qcursor.html#setPos)( )[QWidget.mapFromGlobal](qwidget.html#mapFromGlobal)()和[QWidget.mapToGlobal](qwidget.html#mapToGlobal)( ) 。
```
QCursor.setPos (int x, int y)
```
移动光标(热点)向全球屏幕位置(_x_,_y_) 。
您可以致电[QWidget.mapToGlobal](qwidget.html#mapToGlobal)( )翻译小工具坐标转换为全局屏幕坐标。
**See also** [pos](qcursor.html#pos)( )[QWidget.mapFromGlobal](qwidget.html#mapFromGlobal)()和[QWidget.mapToGlobal](qwidget.html#mapToGlobal)( ) 。
```
QCursor.setPos (QPoint p)
```
这是一个重载函数。
移动光标(热点),以点在全局屏幕位置_p_。
```
QCursor.setShape (self, Qt.CursorShape newShape)
```
将光标设置到确定的形状_shape_。
See [Qt.CursorShape](qt.html#CursorShape-enum)为光标形状列表。
**See also** [shape](qcursor.html#shape)( ) 。
```
Qt.CursorShape QCursor.shape (self)
```
[](qt.html#CursorShape-enum)
[返回光标形状标识符。返回值是一个](qt.html#CursorShape-enum)[Qt.CursorShape](qt.html#CursorShape-enum)枚举值(转换为int ) 。
**See also** [setShape](qcursor.html#setShape)( ) 。
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- 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