Qt GUI C++ 类

Qt GUI 模块为采用 Qt 编写图形应用程序提供基本的使能器。更多...

名称空间

类

QInputMethodEvent::Attribute	QInputMethodEvent::Attribute 类存储输入法属性
QIconEngine::AvailableSizesArgument
QOpenGLVertexArrayObject::Binder	QOpenGLVertexArrayObject::Binder class is a convenience class to help with the binding and releasing of OpenGL Vertex Array Objects
QPainterPath::Element	QPainterPath::Element class specifies the position and type of a subpath
QTextLayout::FormatRange	QTextLayout::FormatRange structure is used to apply extra formatting information for a specified area in the text layout's content
QPixmapCache::Key	QPixmapCache::Key class can be used for efficient access to the QPixmapCache
QAbstractTextDocumentLayout::PaintContext	QAbstractTextDocumentLayout::PaintContext class is a convenience class defining the parameters used when painting a document's layout
QPainter::PixmapFragment	This class is used in conjunction with the QPainter::drawPixmapFragments() function to specify how a pixmap, or sub-rect of a pixmap, is drawn
QAbstractOpenGLFunctions	The base class of a family of classes that expose all functions for each OpenGL version and profile
QAbstractTextDocumentLayout	Abstract base class used to implement custom layouts for QTextDocuments
QAccessible	与可访问性相关的枚举和静态函数
QAccessibleEditableTextInterface	实现对具有可编辑文本的对象的支持
QAccessibleEvent	用于可访问性通知的基类
QAccessibleInterface	定义暴露有关可访问对象的信息的接口
QAccessibleObject	Implements parts of the QAccessibleInterface for QObjects
QAccessibleStateChangeEvent	Notfies the accessibility framework that the state of an object has changed
QAccessibleTableCellInterface	Implements support for the IAccessibleTable2 Cell interface
QAccessibleTableModelChangeEvent	Signifies a change in a table, list, or tree where cells are added or removed. If the change affected a number of rows, firstColumn and lastColumn will return -1. Likewise for columns, the row functions may return -1
QAccessibleTextCursorEvent	Notifies of cursor movements
QAccessibleTextInsertEvent	正在插入文本的通知
QAccessibleTextInterface	实现对文本处理的支持
QAccessibleTextRemoveEvent	Notifies of text being deleted
QAccessibleTextSelectionEvent	Signals a change in the text selection of an object
QAccessibleTextUpdateEvent	Notifies about text changes. This is for accessibles that support editable text such as line edits. This event occurs for example when a portion of selected text gets replaced by pasting a new text or in override mode of editors
QAccessibleValueChangeEvent	Describes a change in value for an accessible object
QAccessibleValueInterface	Implements support for objects that manipulate a value
QActionEvent	Event that is generated when a QAction is added, removed, or changed
QBackingStore	用于 QWindow 的绘制区域
QBitmap	Monochrome (1-bit depth) pixmaps
QBrush	定义 QPainter 绘制形状的填充图案
QClipboard	Access to the window system clipboard
QCloseEvent	Contains parameters that describe a close event
QColor	基于 RGB、HSV 或 CMYK 值的颜色
QConicalGradient	Used in combination with QBrush to specify a conical gradient brush
QContextMenuEvent	包含描述上下文菜单事件的参数
QCursor	具有任意形状的鼠标光标
QDesktopServices	用于访问常见桌面服务的方法
QDoubleValidator	Range checking of floating-point numbers
QDrag	Support for MIME-based drag and drop data transfer
QDragEnterEvent	Event which is sent to a widget when a drag and drop action enters it
QDragLeaveEvent	Event that is sent to a widget when a drag and drop action leaves it
QDragMoveEvent	Event which is sent while a drag and drop action is in progress
QDropEvent	Event which is sent when a drag and drop action is completed
QEnterEvent	包含描述进入事件的参数
QExposeEvent	Contains event parameters for expose events
QFileOpenEvent	当有打开文件或 URL 的请求时会发送的事件
QFocusEvent	Contains event parameters for widget focus events
QFont	Specifies a font used for drawing text
QFontDatabase	Information about the fonts available in the underlying window system
QFontInfo	有关字体的一般信息
QFontMetrics	字体规格信息
QFontMetricsF	字体规格信息
QGenericMatrix	Template class that represents a NxM transformation matrix with N columns and M rows
QGenericPlugin	用于插件的抽象基类
QGenericPluginFactory	创建插件驱动程序
QGlyphRun	Direct access to the internal glyphs in a font
QGradient	Used in combination with QBrush to specify gradient fills
QGuiApplication	管理 GUI 应用程序的控制流和主要设置
QHelpEvent	用于在 Widget 中有关特定点请求有帮助信息的事件
QHideEvent	在 Widget 被隐藏后发送的事件
QHoverEvent	包含鼠标事件描述参数
QIcon	在不同模式和状态下的可缩放图标
QIconDragEvent	Indicates that a main icon drag has begun
QIconEngine	用于 QIcon 渲染器的抽象基类
QIconEnginePlugin	用于自定义 QIconEngine 插件的抽象基
QImage	独立于硬件的图像表示 (允许直接访问像素数据，且可以被用作描绘设备)
QImageIOHandler	定义用于 Qt 中所有图像格式的常见图像 I/O 接口
QImageIOPlugin	定义用于编写图像格式插件的接口
QImageReader	Format independent interface for reading images from files or other devices
QImageWriter	Format independent interface for writing images to files or other devices
QInputEvent	The base class for events that describe user input
QInputMethod	访问活动文本输入法
QInputMethodEvent	用于输入法事件的参数
QInputMethodQueryEvent	Event sent by the input context to input objects
QIntValidator	Validator that ensures a string contains a valid integer within a specified range
QKeyEvent	描述键事件
QKeySequence	封装作为快捷键使用的键序列
QLinearGradient	Used in combination with QBrush to specify a linear gradient brush
QMatrix4x4	Represents a 4x4 transformation matrix in 3D space
QMouseEvent	包含鼠标事件描述参数
QMoveEvent	包含用于移动事件的事件参数
QMovie	采用 QImageReader 播放电影的方便类
QNativeGestureEvent	Contains parameters that describe a gesture event
QOffscreenSurface	表示底层平台的离屏表面
QOpenGLBuffer	用于创建和管理 OpenGL 缓冲对象的函数
QOpenGLContext	表示本机 OpenGL 上下文，使 OpenGL 能够渲染在 QSurface
QOpenGLContextGroup	表示共享 OpenGL 资源的上下文组
QOpenGLDebugLogger	Enables logging of OpenGL debugging messages
QOpenGLDebugMessage	Wraps an OpenGL debug message
QOpenGLExtraFunctions	Cross-platform access to the OpenGL ES 3.0, 3.1 and 3.2 API
QOpenGLFramebufferObject	Encapsulates an OpenGL framebuffer object
QOpenGLFramebufferObjectFormat	Specifies the format of an OpenGL framebuffer object
QOpenGLFunctions	Cross-platform access to the OpenGL ES 2.0 API
QOpenGLFunctions_1_0	All functions for OpenGL 1.0 specification
QOpenGLFunctions_1_1	All functions for OpenGL 1.1 specification
QOpenGLFunctions_1_2	All functions for OpenGL 1.2 specification
QOpenGLFunctions_1_3	All functions for OpenGL 1.3 specification
QOpenGLFunctions_1_4	All functions for OpenGL 1.4 specification
QOpenGLFunctions_1_5	All functions for OpenGL 1.5 specification
QOpenGLFunctions_2_0	用于 OpenGL 2.0 规范的所有函数
QOpenGLFunctions_2_1	用于 OpenGL 2.1 规范的所有函数
QOpenGLFunctions_3_0	All functions for OpenGL 3.0 specification
QOpenGLFunctions_3_1	All functions for OpenGL 3.1 specification
QOpenGLFunctions_3_2_Compatibility	All functions for OpenGL 3.2 compatibility profile
QOpenGLFunctions_3_2_Core	All functions for OpenGL 3.2 core profile
QOpenGLFunctions_3_3_Compatibility	All functions for OpenGL 3.3 compatibility profile
QOpenGLFunctions_3_3_Core	All functions for OpenGL 3.3 core profile
QOpenGLFunctions_4_0_Compatibility	All functions for OpenGL 4.0 compatibility profile
QOpenGLFunctions_4_0_Core	All functions for OpenGL 4.0 core profile
QOpenGLFunctions_4_1_Compatibility	All functions for OpenGL 4.1 compatibility profile
QOpenGLFunctions_4_1_Core	All functions for OpenGL 4.1 core profile
QOpenGLFunctions_4_2_Compatibility	All functions for OpenGL 4.2 compatibility profile
QOpenGLFunctions_4_2_Core	All functions for OpenGL 4.2 core profile
QOpenGLFunctions_4_3_Compatibility	All functions for OpenGL 4.3 compatibility profile
QOpenGLFunctions_4_3_Core	All functions for OpenGL 4.3 core profile
QOpenGLFunctions_4_4_Compatibility	All functions for OpenGL 4.4 compatibility profile
QOpenGLFunctions_4_4_Core	All functions for OpenGL 4.4 core profile
QOpenGLFunctions_4_5_Compatibility	All functions for OpenGL 4.5 compatibility profile
QOpenGLFunctions_4_5_Core	All functions for OpenGL 4.5 core profile
QOpenGLFunctions_ES2	All functions for OpenGL ES 2
QOpenGLPaintDevice	Enables painting to an OpenGL context using QPainter
QOpenGLShader	Allows OpenGL shaders to be compiled
QOpenGLShaderProgram	Allows OpenGL shader programs to be linked and used
QOpenGLTexture	Encapsulates an OpenGL texture object
QOpenGLTextureBlitter	Convenient way to draw textured quads via OpenGL
QOpenGLTimeMonitor	Wraps a sequence of OpenGL timer query objects
QOpenGLTimerQuery	Wraps an OpenGL timer query object
QOpenGLVersionProfile	Represents the version and if applicable the profile of an OpenGL context
QOpenGLVertexArrayObject	Wraps an OpenGL Vertex Array Object
QOpenGLWindow	Convenience subclass of QWindow to perform OpenGL painting
QPageLayout	Describes the size, orientation and margins of a page
QPageSize	Describes the size and name of a defined page size
QPagedPaintDevice	Represents a paintdevice that supports multiple pages
QPaintDevice	可以采用 QPainter 进行描绘的对象的基类
QPaintDeviceWindow	也是 QPaintDevice 的 QWindow 方便子类
QPaintEngine	Abstract definition of how QPainter draws to a given device on a given platform
QPaintEngineState	Information about the active paint engine's current state
QPaintEvent	包含用于描绘事件的事件参数
QPainter	在 Widget 和其它描绘设备上，履行低级描绘
QPainterPath	Container for painting operations, enabling graphical shapes to be constructed and reused
QPainterPathStroker	Used to generate fillable outlines for a given painter path
QPalette	Contains color groups for each widget state
QPdfWriter	Class to generate PDFs that can be used as a paint device
QPen	定义 QPainter 如何绘制线条和形状的轮廓
QPicture	用于记录和重演 QPainter 命令的描绘设备
QPixelFormat	Class for describing different pixel layouts in graphics buffers
QPixmap	可以用作描绘设备的离屏图像表示
QPixmapCache	应用程序范围像素图缓存
QPlatformSurfaceEvent	用于通知有关本机平台表面事件
QPointingDeviceUniqueId	Identifies a unique object, such as a tagged token or stylus, which is used with a pointing device
QPolygon	Vector of points using integer precision
QPolygonF	Vector of points using floating point precision
QQuaternion	Represents a quaternion consisting of a vector and scalar
QRadialGradient	Used in combination with QBrush to specify a radial gradient brush
QRasterPaintEngine	启用描绘操作硬件加速 (在 Qt for Embedded Linux 中)
QRasterWindow	Convenience class for using QPainter on a QWindow
QRawFont	Access to a single physical instance of a font
QRegExpValidator	Used to check a string against a regular expression
QRegion	为描绘器指定裁剪区域
QResizeEvent	Contains event parameters for resize events
QRgba64	Struct contains a 64-bit RGB color
QScreen	用于查询屏幕特性
QScrollEvent	发送
QScrollPrepareEvent	Sent in preparation of scrolling
QSessionManager	Access to the session manager
QShortcutEvent	Event which is generated when the user presses a key combination
QShowEvent	Event that is sent when a widget is shown
QStandardItem	Item for use with the QStandardItemModel class
QStandardItemModel	Generic model for storing custom data
QStaticText	当文本及其布局很少更新时，启用优化文本绘制
QStatusTipEvent	用于在状态栏展示消息的事件
QStyleHints	Contains platform specific hints and settings
QSupportedWritingSystems	当采用内部 Qt fontdatabase (字体数据库) 注册字体时使用
QSurface	Qt 中可渲染表面的抽象
QSurfaceFormat	表示 QSurface 的格式
QSyntaxHighlighter	Allows you to define syntax highlighting rules, and in addition you can use the class to query a document's current formatting or user data
QTabletEvent	Contains parameters that describe a Tablet event
QTextBlock	用于 QTextDocument 中文本片段的容器
QTextBlockFormat	Formatting information for blocks of text in a QTextDocument
QTextBlockGroup	Container for text blocks within a QTextDocument
QTextBlockUserData	Used to associate custom data with blocks of text
QTextCharFormat	Formatting information for characters in a QTextDocument
QTextCursor	Offers an API to access and modify QTextDocuments
QTextDocument	保持格式化文本
QTextDocumentFragment	表示一块来自 QTextDocument 的格式化文本
QTextDocumentWriter	Format-independent interface for writing a QTextDocument to files or other devices
QTextFormat	Formatting information for a QTextDocument
QTextFragment	Holds a piece of text in a QTextDocument with a single QTextCharFormat
QTextFrame	Represents a frame in a QTextDocument
QTextFrameFormat	Formatting information for frames in a QTextDocument
QTextImageFormat	Formatting information for images in a QTextDocument
QTextInlineObject	Represents an inline object in a QAbstractTextDocumentLayout and its implementations
QTextItem	All the information required to draw text in a custom paint engine
QTextLayout	Used to lay out and render text
QTextLength	Encapsulates the different types of length used in a QTextDocument
QTextLine	Represents a line of text inside a QTextLayout
QTextList	Decorated list of items in a QTextDocument
QTextListFormat	Formatting information for lists in a QTextDocument
QTextObject	Base class for different kinds of objects that can group parts of a QTextDocument together
QTextObjectInterface	Allows drawing of custom text objects in QTextDocuments
QTextOption	一般富文本特性的描述
QTextTable	Represents a table in a QTextDocument
QTextTableCell	Represents the properties of a cell in a QTextTable
QTextTableCellFormat	Formatting information for table cells in a QTextDocument
QTextTableFormat	Formatting information for tables in a QTextDocument
QTouchDevice	Describes the device from which touch events originate
QTouchEvent	包含描述触摸事件的参数
QTransform	Specifies 2D transformations of a coordinate system
QValidator	Validation of input text
QVector2D	Represents a vector or vertex in 2D space
QVector3D	Represents a vector or vertex in 3D space
QVector4D	Represents a vector or vertex in 4D space
QVulkanDeviceFunctions	Cross-platform access to the device level core Vulkan 1.0 API
QVulkanFunctions	Cross-platform access to the instance level core Vulkan 1.0 API
QVulkanInstance	Represents a native Vulkan instance, enabling Vulkan rendering onto a QSurface
QVulkanWindow	Convenience subclass of QWindow to perform Vulkan rendering
QVulkanWindowRenderer	Used to implement the application-specific rendering logic for a QVulkanWindow
QWhatsThisClickedEvent	Event that can be used to handle hyperlinks in a "What's This?" text
QWheelEvent	Contains parameters that describe a wheel event
QWindow	表示在底层窗口系统中的窗口
QWindowStateChangeEvent	The window state before a window state change
QIconEngine::ScaledPixmapArgument
QAbstractTextDocumentLayout::Selection	QAbstractTextDocumentLayout::Selection class is a convenience class defining the parameters of a selection
QAccessible::State
QTextOption::Tab
QTouchEvent::TouchPoint	Information about a touch point in a QTouchEvent
QTextBlock::iterator	QTextBlock::iterator class provides an iterator for reading the contents of a QTextBlock

详细描述

The Qt GUI module provides classes for windowing system integration, event handling, OpenGL and OpenGL ES integration, Vulkan integration, 2D graphics, imaging, fonts and typography. These classes are used internally by Qt's user interface technologies and can also be used directly, for instance to write applications using low-level OpenGL ES graphics APIs.