# QColorDialog Class Reference
## [[QtGui](index.htm) module]
该QColorDialog类提供了一个对话框控件指定颜色。[More...](#details)
继承[QDialog](qdialog.html)。
### Types
* `enum ColorDialogOption { ShowAlphaChannel, NoButtons, DontUseNativeDialog }`
* `class **[ColorDialogOptions](index.htm)**`
### Methods
* `__init__ (self, QWidget parent = None)`
* `__init__ (self, QColor initial, QWidget parent = None)`
* `changeEvent (self, QEvent e)`
* `QColor currentColor (self)`
* `done (self, int result)`
* `open (self)`
* `open (self, QObject receiver, SLOT()SLOT() member)`
* `open (self, callable receiver)`
* `ColorDialogOptions options (self)`
* `QColor selectedColor (self)`
* `setCurrentColor (self, QColor color)`
* `setOption (self, ColorDialogOption option, bool on = True)`
* `setOptions (self, ColorDialogOptions options)`
* `setVisible (self, bool visible)`
* `bool testOption (self, ColorDialogOption option)`
### Static Methods
* `int customColor (int)`
* `int customCount ()`
* `QColor getColor (QColor initial = Qt.white, QWidget parent = None)`
* `QColor getColor (QColor initial, QWidget parent, QString title, ColorDialogOptions options = 0)`
* `(int, bool ok) getRgba (int initial = 4294967295, QWidget parent = None)`
* `setCustomColor (int, int)`
* `setStandardColor (int, int)`
### Qt Signals
* `void colorSelected (const QColor&)`
* `void currentColorChanged (const QColor&)`
* * *
## Detailed Description
该QColorDialog类提供了一个对话框控件指定颜色。
颜色对话框的功能是让用户选择的颜色。例如，您可以使用这一个绘图程序，以允许用户设置画笔的颜色。
静态函数提供了模态对话框的颜色。
静[getColor](qcolordialog.html#getColor)（）函数显示对话框，并且允许用户指定颜色。此功能也可以用来让用户选择一种颜色与透明度级别：通过[ShowAlphaChannel](qcolordialog.html#ColorDialogOption-enum)选项作为附加参数。
用户可以存储[customCount](qcolordialog.html#customCount)（ ）不同的自定义颜色。自定义颜色是由所有的颜色对话框共享，程序的执行过程中记住。使用[setCustomColor](qcolordialog.html#setCustomColor)（ ）来设置自定义颜色，并使用[customColor](qcolordialog.html#customColor)（）来获取它们。
该[Standard Dialogs](index.htm)示例显示了如何使用QColorDialog以及其他内置Qt对话框。
* * *
## Type Documentation
```
QColorDialog.ColorDialogOption
```
此枚举指定了影响颜色对话框的外观和感觉的各种选项。
| Constant | Value | Description |
| --- | --- | --- |
| `QColorDialog.ShowAlphaChannel` | `0x00000001` | 允许用户选择一种颜色的alpha分量。 |
| `QColorDialog.NoButtons` | `0x00000002` | 不显示**OK**和**Cancel**按钮。 （有用的“现场对话” 。 ） |
| `QColorDialog.DontUseNativeDialog` | `0x00000004` | 使用Qt的Mac上的标准颜色对话框，而不是苹果的原生颜色面板。 |
这个枚举被引入或修改的Qt 4.5 。
该ColorDialogOptions类型是一个typedef为[QFlags](index.htm)\u003cColorDialogOption\u003e 。它存储ColorDialogOption值的或组合。
**See also** [options](qcolordialog.html#options-prop)，[setOption](qcolordialog.html#setOption)（ ）[testOption](qcolordialog.html#testOption)（）和[windowModality](qwidget.html#windowModality-prop)（ ） 。
* * *
## Method Documentation
```
QColorDialog.__init__ (self, QWidget parent = None)
```
该_parent_的说法，如果不是没有，原因_self_通过Qt的，而不是PyQt的拥有。
构造一个颜色对话框与给定_parent_。
此功能被引入Qt的4.5 。
```
QColorDialog.__init__ (self, QColor initial, QWidget parent = None)
```
该_parent_的说法，如果不是没有，原因_self_通过Qt的，而不是PyQt的拥有。
构造一个颜色对话框与给定_parent_并指定_initial_颜色。
此功能被引入Qt的4.5 。
```
QColorDialog.changeEvent (self, QEvent e)
```
从重新实现[QWidget.changeEvent](qwidget.html#changeEvent)（ ） 。
```
QColor QColorDialog.currentColor (self)
```
[
```
int QColorDialog.customColor (int)
```
](qcolor.html)
[返回自定义颜色在给定的_index_作为](qcolor.html)[QRgb](qcolor.html#QRgb-typedef)值。
此功能被引入Qt的4.5 。
**See also** [setCustomColor](qcolordialog.html#setCustomColor)（ ） 。
```
int QColorDialog.customCount ()
```
返回所支持的自定义颜色数[QColorDialog](qcolordialog.html)。所有的颜色对话框共用相同的自定义颜色。
```
QColorDialog.done (self, int result)
```
从重新实现[QDialog.done](qdialog.html#done)（ ） 。
关闭对话框，并将其结果代码_result_。如果显示此对话框[exec_](qdialog.html#exec)（ ） ， （）完成将导致本地事件循环来完成，并[exec_](qdialog.html#exec)（ ）返回_result_。
**See also** [QDialog.done](qdialog.html#done)（ ） 。
```
QColor QColorDialog.getColor (QColor initial = Qt.white, QWidget parent = None)
```
[](qcolor.html)
[弹出的窗口给出一个模式对话框的颜色_title_（或“选择颜色” ，如果没有指定） ，让用户选择一种颜色，并返回该颜色。彩色初始设定为_initial_。对话框是一个孩子_parent_。它返回一个无效的（见](qcolor.html)[QColor.isValid](qcolor.html#isValid)（ ） ）如果用户取消该对话框的颜色。
该_options_参数允许您自定义对话框。
在Symbian ，这个静态函数将使用原生颜色对话框，而不是一个[QColorDialog](qcolordialog.html)。在Symbian的参数_title_和_parent_有没有相关性和_options_参数仅用于定义是否被使用或不是天然颜色对话框。
此功能被引入Qt的4.5 。
```
QColor QColorDialog.getColor (QColor initial, QWidget parent, QString title, ColorDialogOptions options = 0)
```
[](qcolor.html)
[弹出一个模态对话框颜色，让用户选择一种颜色，并返回该颜色。彩色初始设定为_initial_。对话框是一个孩子_parent_。它返回一个无效的（见](qcolor.html)[QColor.isValid](qcolor.html#isValid)（ ） ）如果用户取消该对话框的颜色。
在Symbian ，这个静态函数将使用原生颜色对话框，而不是一个[QColorDialog](qcolordialog.html)。
```
(int, bool ok) QColorDialog.getRgba (int initial = 4294967295, QWidget parent = None)
```
```
QColorDialog.open (self)
```
显示该对话框的[window modal dialog](qdialog.html#modal-dialogs)，立即返回。
此功能被引入Qt的4.5 。
**See also** [QDialog.open](qdialog.html#open)（ ） 。
```
QColorDialog.open (self, QObject receiver, SLOT()SLOT() member)
```
这是一个重载函数。
在打开的对话框并连接其[colorSelected](qcolordialog.html#colorSelected)（）信号到由指定的槽_receiver_和_member_。
该信号会从插槽中断开时，关闭对话框。
此功能被引入Qt的4.5 。
```
QColorDialog.open (self, callable receiver)
```
```
ColorDialogOptions QColorDialog.options (self)
```
[](index.htm)
```
QColor QColorDialog.selectedColor (self)
```
[
返回用户选择通过单击颜色**OK**或等效按钮。
](qcolor.html)
[**Note:**这种颜色并非总是一样的保持的颜色](qcolor.html)[currentColor](qcolordialog.html#currentColor-prop)因为用户属性终于可以选择一个使用之前选择不同的颜色。
```
QColorDialog.setCurrentColor (self, QColor color)
```
```
QColorDialog.setCustomColor (int, int)
```
设置在自定义颜色_index_到[QRgb](qcolor.html#QRgb-typedef) _color_值。
**Note:**此功能并不适用于本机颜色对话框上的Mac OS X平台。如果您仍然需要使用此功能，请使用[QColorDialog.DontUseNativeDialog](qcolordialog.html#ColorDialogOption-enum)选项。
**See also** [customColor](qcolordialog.html#customColor)（ ） 。
```
QColorDialog.setOption (self, ColorDialogOption option, bool on = True)
```
设置给定_option_被启用，如果_on_是真的，否则，清除给定的_option_。
**See also** [options](qcolordialog.html#options-prop)和[testOption](qcolordialog.html#testOption)（ ） 。
```
QColorDialog.setOptions (self, ColorDialogOptions options)
```
```
QColorDialog.setStandardColor (int, int)
```
设置标准色在_index_到[QRgb](qcolor.html#QRgb-typedef) _color_值。
**Note:**此功能并不适用于本机颜色对话框上的Mac OS X平台。如果您仍然需要使用此功能，请使用[QColorDialog.DontUseNativeDialog](qcolordialog.html#ColorDialogOption-enum)选项。
```
QColorDialog.setVisible (self, bool visible)
```
从重新实现[QWidget.setVisible](qwidget.html#visible-prop)（ ） 。
更改对话框的可见性。如果_visible_为真，则显示的对话框，否则，它是隐藏的。
```
bool QColorDialog.testOption (self, ColorDialogOption option)
```
返回True如果给定的_option_被启用，否则返回False 。
此功能被引入Qt的4.5 。
**See also** [options](qcolordialog.html#options-prop)和[setOption](qcolordialog.html#setOption)（ ） 。
* * *
## Qt Signal Documentation
```
void colorSelected (const QColor&)
```
这是该信号的默认超载。
这个信号被发射的用户点击后刚**OK**选择要使用的颜色。所选择的颜色是由指定的_color_。
**See also** [color](index.htm)和[currentColorChanged](qcolordialog.html#currentColorChanged)（ ） 。
```
void currentColorChanged (const QColor&)
```
这是该信号的默认超载。
这个信号被发射时的对话在当前的颜色变化。当前颜色被指定_color_。
**See also** [color](index.htm)和[colorSelected](qcolordialog.html#colorSelected)（ ） 。
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- 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