Qt GUI C++ Classes | Qt GUI (original) (raw)
The Qt GUI module provides the basic enablers for graphical applications written with Qt. More...
| QAbstractFileIconProvider | File icons for the QFileSystemModel class |
|---|---|
| QAbstractTextDocumentLayout | Abstract base class used to implement custom layouts for QTextDocuments |
| QAbstractTextDocumentLayout::PaintContext | QAbstractTextDocumentLayout::PaintContext class is a convenience class defining the parameters used when painting a document's layout |
| QAbstractTextDocumentLayout::Selection | QAbstractTextDocumentLayout::Selection class is a convenience class defining the parameters of a selection |
| QAccessible | Enums and static functions related to accessibility |
| QAccessible::State | |
| QAccessibleActionInterface | Implements support for invocable actions in the interface |
| QAccessibleAnnouncementEvent | Used to request the announcement of a given message by assistive technologies |
| QAccessibleAttributesInterface | Implements support for reporting attributes for an accessible object |
| QAccessibleEditableTextInterface | Implements support for objects with editable text |
| QAccessibleEvent | The base class for accessibility notifications |
| QAccessibleInterface | Defines an interface that exposes information about accessible objects |
| QAccessibleObject | Implements parts of the QAccessibleInterface for QObjects |
| QAccessiblePlugin | Abstract base class for plugins provinding accessibility information for user interface elements |
| QAccessibleSelectionInterface | Implements support for selection handling |
| QAccessibleStateChangeEvent | Notfies the accessibility framework that the state of an object has changed |
| QAccessibleTableCellInterface | Implements support for the IAccessibleTable2 Cell interface |
| QAccessibleTableInterface | Implements support for the IAccessibleTable2 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 | Notifies of text being inserted |
| QAccessibleTextInterface | Implements support for text handling |
| 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 |
| QAction | Abstraction for user commands that can be added to different user interface components |
| QActionEvent | Event that is generated when a QAction is added, removed, or changed |
| QActionGroup | Groups actions together |
| QBackingStore | Drawing area for QWindow |
| QBitmap | Monochrome (1-bit depth) pixmaps |
| QBrush | Defines the fill pattern of shapes drawn by QPainter |
| QChildWindowEvent | Contains event parameters for child window changes |
| QClipboard | Access to the window system clipboard |
| QCloseEvent | Contains parameters that describe a close event |
| QColor | Colors based on RGB, HSV or CMYK values |
| QColorSpace | Color space abstraction |
| QColorSpace::PrimaryPoints | Struct contains four primary color space points |
| QColorTransform | Transformation between color spaces |
| QConicalGradient | Used in combination with QBrush to specify a conical gradient brush |
| QContextMenuEvent | Contains parameters that describe a context menu event |
| QCursor | Mouse cursor with an arbitrary shape |
| QDesktopServices | Methods for accessing common desktop services |
| 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 | Contains parameters that describe an enter event |
| QEventPoint | Information about a point in a QPointerEvent |
| QExposeEvent | Contains event parameters for expose events |
| QFileOpenEvent | Event that will be sent when there is a request to open a file or a URL |
| QFileSystemModel | Data model for the local filesystem |
| QFocusEvent | Contains event parameters for widget focus events |
| QFont | Specifies a query for a font used for drawing text |
| QFont::Tag | QFont::Tag type provides access to advanced font features |
| QFontDatabase | Information about the fonts available in the underlying window system |
| QFontInfo | General information about fonts |
| QFontMetrics | Font metrics information |
| QFontMetricsF | Font metrics information |
| QFontVariableAxis | Represents a variable axis in a font |
| QGenericMatrix | Template class that represents a NxM transformation matrix with N columns and M rows |
| QGenericPlugin | Abstract base class for plugins |
| QGenericPluginFactory | Creates plugin drivers |
| QGlyphRun | Direct access to the internal glyphs in a font |
| QGradient | Used in combination with QBrush to specify gradient fills |
| QGuiApplication | Manages the GUI application's control flow and main settings |
| QHelpEvent | Event that is used to request helpful information about a particular point in a widget |
| QHideEvent | Event which is sent after a widget is hidden |
| QHoverEvent | Contains parameters that describe a mouse event |
| QIcon | Scalable icons in different modes and states |
| QIconDragEvent | Indicates that a main icon drag has begun |
| QIconEngine | Abstract base class for QIcon renderers |
| QIconEngine::ScaledPixmapArgument | |
| QIconEnginePlugin | Abstract base for custom QIconEngine plugins |
| QImage | Hardware-independent image representation that allows direct access to the pixel data, and can be used as a paint device |
| QImageIOHandler | Defines the common image I/O interface for all image formats in Qt |
| QImageIOPlugin | Defines an interface for writing an image format plugin |
| QImageReader | Format independent interface for reading images from files or other devices |
| QImageWriter | Format independent interface for writing images to files or other devices |
| QInputDevice | Describes a device from which a QInputEvent originates |
| QInputEvent | The base class for events that describe user input |
| QInputMethod | Access to the active text input method |
| QInputMethodEvent | Parameters for input method events |
| QInputMethodEvent::Attribute | QInputMethodEvent::Attribute class stores an input method attribute |
| 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 | Describes a key event |
| QKeySequence | Encapsulates a key sequence as used by shortcuts |
| QLinearGradient | Used in combination with QBrush to specify a linear gradient brush |
| QMatrix4x4 | Represents a 4x4 transformation matrix in 3D space |
| QMouseEvent | Contains parameters that describe a mouse event |
| QMoveEvent | Contains event parameters for move events |
| QMovie | Convenience class for playing movies with QImageReader |
| QNativeGestureEvent | Contains parameters that describe a gesture event |
| QNativeInterface::QAndroidOffscreenSurface | Native interface to a offscreen surface on Android |
| QNativeInterface::QAndroidScreen | Native interface to a screen |
| QNativeInterface::QCocoaGLContext | Native interface to an NSOpenGLContext on macOS |
| QNativeInterface::QEGLContext | Native interface to an EGL context |
| QNativeInterface::QGLXContext | Native interface to a GLX context |
| QNativeInterface::QWGLContext | Native interface to a WGL context on Windows |
| QNativeInterface::QWaylandApplication | Native interface to a Wayland application |
| QNativeInterface::QWaylandScreen | Native interface to a screen on Wayland |
| QNativeInterface::QWindowsScreen | Native interface to a screen |
| QNativeInterface::QX11Application | Native interface to an X11 application |
| QOffscreenSurface | Represents an offscreen surface in the underlying platform |
| QOpenGLContext | Represents a native OpenGL context, enabling OpenGL rendering on a QSurface |
| QOpenGLContextGroup | Represents a group of contexts sharing OpenGL resources |
| QOpenGLExtraFunctions | Cross-platform access to the OpenGL ES 3.0, 3.1 and 3.2 API |
| QOpenGLFunctions | Cross-platform access to the OpenGL ES 2.0 API |
| QOpenGLTexture | Encapsulates an OpenGL texture object |
| QPageLayout | Describes the size, orientation and margins of a page |
| QPageRanges | Represents a collection of page ranges |
| QPageRanges::Range | QPageRanges::Range struct holds the from and to endpoints of a range |
| QPageSize | Describes the size and name of a defined page size |
| QPagedPaintDevice | Represents a paint device that supports multiple pages |
| QPaintDevice | The base class of objects that can be painted on with QPainter |
| QPaintDeviceWindow | Convenience subclass of QWindow that is also a QPaintDevice |
| 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 | Contains event parameters for paint events |
| QPainter | Performs low-level painting on widgets and other paint devices |
| 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 |
| QPainterPath | Container for painting operations, enabling graphical shapes to be constructed and reused |
| QPainterPath::Element | QPainterPath::Element class specifies the position and type of a subpath |
| QPainterPathStroker | Used to generate fillable outlines for a given painter path |
| QPainterStateGuard | RAII convenience class for balanced QPainter::save() and QPainter::restore() calls |
| QPalette | Contains color groups for each widget state |
| QPdfOutputIntent | |
| QPdfWriter | Class to generate PDFs that can be used as a paint device |
| QPen | Defines how a QPainter should draw lines and outlines of shapes |
| QPicture | Paint device that records and replays QPainter commands |
| QPixelFormat | Class for describing different pixel layouts in graphics buffers |
| QPixmap | Off-screen image representation that can be used as a paint device |
| QPixmapCache | Application-wide cache for pixmaps |
| QPixmapCache::Key | QPixmapCache::Key class can be used for efficient access to the QPixmapCache |
| QPlatformSurfaceEvent | Used to notify about native platform surface events |
| QPointerEvent | A base class for pointer events |
| QPointingDevice | Describes a device from which mouse, touch or tablet events originate |
| QPointingDeviceUniqueId | Identifies a unique object, such as a tagged token or stylus, which is used with a pointing device |
| QPolygon | List of points using integer precision |
| QPolygonF | List 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 |
| QRasterWindow | Convenience class for using QPainter on a QWindow |
| QRawFont | Access to a single physical instance of a font |
| QRegion | Specifies a clip region for a painter |
| QRegularExpressionValidator | Used to check a string against a regular expression |
| QResizeEvent | Contains event parameters for resize events |
| QRgba64 | Struct contains a 64-bit RGB color |
| QRgbaFloat | Struct contains a four part RGBA floating-point color |
| QRhiVulkanQueueSubmitParams | References additional Vulkan API objects that get passed to vkQueueSubmit() |
| QScreen | Used to query screen properties |
| QScrollEvent | Sent when scrolling |
| QScrollPrepareEvent | Sent in preparation of scrolling |
| QSessionManager | Access to the session manager |
| QShader | Contains multiple versions of a shader translated to multiple shading languages, together with reflection metadata |
| QShader::NativeShaderInfo | Additional metadata about the native shader code |
| QShader::SeparateToCombinedImageSamplerMapping | Mapping metadata for sampler uniforms |
| QShaderCode | Contains source or binary code for a shader and additional metadata |
| QShaderDescription | Describes the interface of a shader |
| QShaderDescription::BlockVariable | Describes a member of a uniform or push constant block |
| QShaderDescription::BuiltinVariable | Describes a built-in variable |
| QShaderDescription::InOutVariable | Describes an input or output variable in the shader |
| QShaderDescription::PushConstantBlock | Describes a push constant block |
| QShaderDescription::StorageBlock | Describes a shader storage block |
| QShaderDescription::UniformBlock | Describes a uniform block |
| QShaderKey | Specifies the shading language, the version with flags, and the variant |
| QShaderVersion | Specifies the shading language version |
| QShortcut | Used to create keyboard shortcuts |
| QShortcutEvent | Event which is generated when the user presses a key combination |
| QShowEvent | Event that is sent when a widget is shown |
| QSinglePointEvent | A base class for pointer events containing a single point, such as mouse events |
| QStandardItem | Item for use with the QStandardItemModel class |
| QStandardItemModel | Generic model for storing custom data |
| QStaticText | Enables optimized drawing of text when the text and its layout is updated rarely |
| QStatusTipEvent | Event that is used to show messages in a status bar |
| QStyleHints | Contains platform specific hints and settings |
| QSupportedWritingSystems | Used when registering fonts with the internal Qt fontdatabase |
| QSurface | Abstraction of renderable surfaces in Qt |
| QSurfaceFormat | Represents the format of a QSurface |
| 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 | Container for text fragments in a QTextDocument |
| QTextBlock::iterator | QTextBlock::iterator class provides an iterator for reading the contents of a QTextBlock |
| 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 | Holds formatted text |
| QTextDocumentFragment | Represents a piece of formatted text from a QTextDocument |
| 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 |
| QTextLayout::FormatRange | QTextLayout::FormatRange structure is used to apply extra formatting information for a specified area in the text layout's content |
| 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 | Description of general rich text properties |
| QTextOption::Tab | |
| 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 |
| QTouchEvent | Contains parameters that describe a touch event |
| QTransform | Specifies 2D transformations of a coordinate system |
| QUndoCommand | The base class of all commands stored on a QUndoStack |
| QUndoGroup | Group of QUndoStack objects |
| QUndoStack | Stack of QUndoCommand objects |
| QUtiMimeConverter | Converts between a MIME type and a Uniform Type Identifier (UTI) format |
| 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 1.3 API |
| QVulkanExtension | Represents information about a Vulkan extension |
| QVulkanFunctions | Cross-platform access to the instance level core Vulkan 1.3 API |
| QVulkanInfoVector | A specialized QList for QVulkanLayer and QVulkanExtension |
| QVulkanInstance | Represents a native Vulkan instance, enabling Vulkan rendering onto a QSurface |
| QVulkanLayer | Represents information about a Vulkan layer |
| 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 | Represents a window in the underlying windowing system |
| QWindowStateChangeEvent | The window state before a window state change |
| QWindowsMimeConverter | Maps open-standard MIME to Window Clipboard formats |