转自:Qt所有的类 - IT观察者 - 博客园
| QAccel | 处理键盘加速器和快捷键 | Handles keyboard accelerator and shortcut keys | 
| QAccessible | Enums与可达性的静态函数 | Enums and static functions relating to accessibility | 
| QAccessibleInterface | 定义一个接口,该接口公开有关可访问对象的信息。 | Defines an interface that exposes information about accessible objects | 
| QAccessibleObject | 为QObjor实现QAccess接口的部分 | Implements parts of the QAccessibleInterface for QObjects | 
| QAction | 可以在菜单和工具栏中显示的抽象用户界面动作 | Abstract user interface action that can appear both in menus and tool bars | 
| QActionGroup | 集体行动 | Groups actions together | 
| QApplication | 管理GUI应用程序的控制流程和主要设置 | Manages the GUI application's control flow and main settings | 
| QAsciiCache | 基于char *键提供缓存的模板类 | Template class that provides a cache based on char* keys | 
| QAsciiCacheIterator | Qasciicache Collections Iterator | Iterator for QAsciiCache collections | 
| QAsciiDict | 基于char *键提供字典的模板类 | Template class that provides a dictionary based on char* keys | 
| QAsciiDictIterator | QasiIDICT集合的迭代器 | Iterator for QAsciiDict collections | 
| QBitArray | 位数组 | Array of bits | 
| QBitVal | 内部类,与QBITAL数组一起使用 | Internal class, used with QBitArray | 
| QBitmap | 单色(1位深度)像素映射 | Monochrome (1-bit depth) pixmaps | 
| QBoxLayout | 水平或垂直排列子控件 | Lines up child widgets horizontally or vertically | 
| QBrush | 定义Qu画师绘制的形状的填充模式。 | Defines the fill pattern of shapes drawn by a QPainter | 
| QBuffer | 在QByTurrar上操作的I/O设备 | I/O device that operates on a QByteArray | 
| QButton | 按钮小部件的抽象基类,提供按钮常用的功能 | The abstract base class of button widgets, providing functionality common to buttons | 
| QButtonGroup | Organizes QButton widgets in a group | Organizes QButton widgets in a group | 
| QByteArray | 字节数组 | Array of bytes | 
| QCDEStyle | 外观与感觉 | CDE look and feel | 
| QCString | 经典C零结尾字符数组(CHAR*)的抽象 | Abstraction of the classic C zero-terminated char array (char *) | 
| QCache | 基于QSql键提供缓存的模板类 | Template class that provides a cache based on QString keys | 
| QCacheIterator | QCHASE收藏品 | Iterator for QCache collections | 
| QCanvas | 可以包含QCANVAISTION对象的2D区域 | 2D area that can contain QCanvasItem objects | 
| QCanvasEllipse | 在QCANVAS上的椭圆或椭圆段 | Ellipse or ellipse segment on a QCanvas | 
| QCanvasItem | QCANVAS上的抽象图形对象 | Abstract graphic object on a QCanvas | 
| QCanvasItemList | QCANASAS项目列表 | List of QCanvasItems | 
| QCanvasLine | 在QCANVAS上的行 | Line on a QCanvas | 
| QCanvasPixmap | QCANVASPITS的像素映射 | Pixmaps for QCanvasSprites | 
| QCanvasPixmapArray | QCANVISPIX映射数组 | Array of QCanvasPixmaps | 
| QCanvasPolygon | 有QCANVAS的多边形 | Polygon on a QCanvas | 
| QCanvasPolygonalItem | QCANVAS多边形 | Polygonal canvas item on a QCanvas | 
| QCanvasRectangle | 有QCANVAS的矩形 | Rectangle on a QCanvas | 
| QCanvasSpline | 在QCANVAS上的多个Bezier样条函数 | Multi-bezier splines on a QCanvas | 
| QCanvasSprite | 活跃的歌唱 | Animated canvas item on a QCanvas | 
| QCanvasText | QCANVAS上的文本对象 | Text object on a QCanvas | 
| QCanvasView | 关于QCANVAS的屏幕视图 | On-screen view of a QCanvas | 
| QChar | 轻量级Unicode字符 | Lightweight Unicode character | 
| QCharRef | q字符串的帮助类 | Helper class for QString | 
| QCheckBox | Checkbox with a text label | Checkbox with a text label | 
| QCheckListItem | 可检查列表视图项 | Checkable list view items | 
| QCheckTableItem | Qtables中的检查 | Checkboxes in QTables | 
| QChildEvent | 子对象事件的事件参数 | Event parameters for child object events | 
| QClipboard | 访问窗口系统剪贴板 | Access to the window system clipboard | 
| QCloseEvent | 描述关闭事件的参数 | Parameters that describe a close event | 
| QColor | 基于RGB或HSV值的颜色 | Colors based on RGB or HSV values | 
| QColorDialog | 指定颜色的对话窗口小部件 | Dialog widget for specifying colors | 
| QColorDrag | 拖拽颜色转移对象 | Drag and drop object for transferring colors | 
| QColorGroup | 小部件颜色组 | Group of widget colors | 
| QComboBox | 组合按钮和弹出列表 | Combined button and popup list | 
| QComboTableItem | QTables使用组合框的方法 | Means of using comboboxes in QTables | 
| QCommonStyle | 封装GUI的常见外观和感觉 | Encapsulates the common Look and Feel of a GUI | 
| QConstString | 使用常数Unicode数据的字符串对象 | String objects using constant Unicode data | 
| QContextMenuEvent | 描述上下文菜单事件的参数 | Parameters that describe a context menu event | 
| QCopChannel | 几个客户之间的通信能力 | Communication capabilities between several clients | 
| QCursor | 任意形状的鼠标光标 | Mouse cursor with an arbitrary shape | 
| QCustomEvent | 支持自定义事件 | Support for custom events | 
| QCustomMenuItem | 在弹出菜单中自定义自定义菜单项的基类 | Abstract base class for custom menu items in popup menus | 
| QDataBrowser | 数据录入窗体的数据操作和导航 | Data manipulation and navigation for data entry forms | 
| QDataStream | 二进制数据到Qoo装置的串行化 | Serialization of binary data to a QIODevice | 
| QDataTable | 支持浏览和编辑的灵活SQL表小部件 | Flexible SQL table widget that supports browsing and editing | 
| QDataView | 只读SQL表单 | Read-only SQL forms | 
| QDate | 日期函数 | Date functions | 
| QDateEdit | 日期编辑器 | Date editor | 
| QDateTime | 日期和时间函数 | Date and time functions | 
| QDateTimeEdit | 将QDATEEDIT和QTimeEngEnter控件合并为编辑日期的单个窗口小部件 | Combines a QDateEdit and QTimeEdit widget into a single widget for editing datetimes | 
| QDesktopWidget | 多头系统屏幕信息的获取 | Access to screen information on multi-head systems | 
| QDial | 圆形范围控制(如速度计或电位器) | Rounded range control (like a speedometer or potentiometer) | 
| QDialog | 对话框窗口的基类 | The base class of dialog windows | 
| QDict | 基于QStand键提供字典的模板类 | Template class that provides a dictionary based on QString keys | 
| QDictIterator | qdit集合的迭代器 | Iterator for QDict collections | 
| QDir | 以平台无关的方式访问目录结构及其内容 | Access to directory structures and their contents in a platform-independent way | 
| QDirectPainter | 直接访问视频硬件 | Direct access to the video hardware | 
| QDns | 异步DNS查找 | Asynchronous DNS lookups | 
| QDockArea | 管理和配置QDOKWindows | Manages and lays out QDockWindows | 
| QDockWindow | 可以在QDOCKEATE中停靠或作为桌面上的顶级窗口浮动的小部件 | Widget which can be docked inside a QDockArea or floated as a top level window on the desktop | 
| QDomAttr | 表示QDOME元素的一个属性。 | Represents one attribute of a QDomElement | 
| QDomCDATASection | 表示XML cDATA节。 | Represents an XML CDATA section | 
| QDomCharacterData | 表示DOM中的通用字符串。 | Represents a generic string in the DOM | 
| QDomComment | 表示XML注释 | Represents an XML comment | 
| QDomDocument | 表示XML文档 | Represents an XML document | 
| QDomDocumentFragment | QDONTUNE的树,通常不是完整的QDOM文档 | Tree of QDomNodes which is not usually a complete QDomDocument | 
| QDomDocumentType | 文档树中DTD的表示 | The representation of the DTD in the document tree | 
| QDomElement | 表示DOM树中的一个元素 | Represents one element in the DOM tree | 
| QDomEntity | 表示XML实体 | Represents an XML entity | 
| QDomEntityReference | 表示XML实体引用。 | Represents an XML entity reference | 
| QDomImplementation | DOM实现的特征信息 | Information about the features of the DOM implementation | 
| QDomNamedNodeMap | 可以通过名称访问的节点的集合 | Collection of nodes that can be accessed by name | 
| QDomNode | DOM树中所有节点的基类 | The base class for all the nodes in a DOM tree | 
| QDomNodeList | QDomNode对象列表 | List of QDomNode objects | 
| QDomNotation | 表示XML表示法。 | Represents an XML notation | 
| QDomProcessingInstruction | 表示XML处理指令。 | Represents an XML processing instruction | 
| QDomText | 表示解析的XML文档中的文本数据。 | Represents text data in the parsed XML document | 
| QDoubleValidator | 浮点数的范围检验 | Range checking of floating-point numbers | 
| QDragEnterEvent | 事件,当拖放首先拖动到控件上时,该事件被发送到控件。 | Event which is sent to the widget when a drag and drop first drags onto the widget | 
| QDragLeaveEvent | 当拖放离开控件时发送到控件的事件 | Event which is sent to the widget when a drag and drop leaves the widget | 
| QDragMoveEvent | 在拖放过程中发送的事件。 | Event which is sent while a drag and drop is in progress | 
| QDragObject | 封装基于MIME的数据传输 | Encapsulates MIME-based data transfer | 
| QDropEvent | 当拖放完成时发送的事件 | Event which is sent when a drag and drop is completed | 
| QEditorFactory | 用于创建qFATA数据类型的编辑器小部件 | Used to create editor widgets for QVariant data types | 
| QErrorMessage | 错误信息显示对话框 | Error message display dialog | 
| QEucJpCodec | EUC-JP字符集的转换 | Conversion to and from EUC-JP character sets | 
| QEucKrCodec | EK-KR字符集的转换 | Conversion to and from EUC-KR character sets | 
| QEvent | 所有事件类的基类。事件对象包含事件参数 | The base class of all event classes. Event objects contain event parameters | 
| QFile | 对文件进行操作的I/O设备 | I/O device that operates on files | 
| QFileDialog | 允许用户选择文件或目录的对话框 | Dialogs that allow users to select files or directories | 
| QFileIconProvider | 使用QFielDeCalax的图标 | Icons for QFileDialog to use | 
| QFileInfo | 系统无关文件信息 | System-independent file information | 
| QFilePreview | QFileDialog中的文件预览 | File previewing in QFileDialog | 
| QFocusData | 维护焦点链中的小部件列表 | Maintains the list of widgets in the focus chain | 
| QFocusEvent | 控件焦点事件的事件参数 | Event parameters for widget focus events | 
| QFont | 用于绘制文本的字体 | Font used for drawing text | 
| QFontDatabase | 有关底层窗口系统中可用字体的信息 | Information about the fonts available in the underlying window system | 
| QFontDialog | 用于选择字体的对话框小部件 | Dialog widget for selecting a font | 
| QFontInfo | 字体的一般信息 | General information about fonts | 
| QFontManager | 实现Qt/Engt中的字体管理 | Implements font management in Qt/Embedded | 
| QFontMetrics | 字体度量信息 | Font metrics information | 
| QFrame | 可以有框架的小部件的基类 | The base class of widgets that can have a frame | 
| QFtp | FTP协议的实现 | Implementation of the FTP protocol | 
| QGL | Qt OpenGL模块中杂项标识符的命名空间 | Namespace for miscellaneous identifiers in the Qt OpenGL module | 
| QGLColormap | 用于将自定义颜色映射安装到QGLIDWET中 | Used for installing custom colormaps into QGLWidgets | 
| QGLContext | 封装OpenGL渲染上下文 | Encapsulates an OpenGL rendering context | 
| QGLFormat | OpenGL渲染上下文的显示格式 | The display format of an OpenGL rendering context | 
| QGLWidget | Widget for rendering OpenGL graphics | Widget for rendering OpenGL graphics | 
| QGLayoutIterator | 抽象的内部布局迭代器基类 | Abstract base class of internal layout iterators | 
| QGb18030Codec | 中国GB18030/GBK/GB23编码转换 | Conversion to and from the Chinese GB18030/GBK/GB2312 encoding | 
| QGbkCodec | 中文GBK编码的转换与转换 | Conversion to and from the Chinese GBK encoding | 
| QGrid | 儿童简易几何管理 | Simple geometry management of its children | 
| QGridLayout | 在网格中设置小部件 | Lays out widgets in a grid | 
| QGridView | 固定尺寸网格抽象库 | Abstract base for fixed-size grids | 
| QGroupBox | 带标题的群箱框架 | Group box frame with a title | 
| QGuardedPtr | 为QObjs提供保护指针的模板类 | Template class that provides guarded pointers to QObjects | 
| QHBox | 子控件的水平几何管理 | Horizontal geometry management for its child widgets | 
| QHBoxLayout | 水平排列小部件 | Lines up widgets horizontally | 
| QHButtonGroup | 在一个水平行的组中组织QButt小部件 | Organizes QButton widgets in a group with one horizontal row | 
| QHGroupBox | 在具有一个水平行的组中组织小部件 | Organizes widgets in a group with one horizontal row | 
| QHeader | 标题行或列,例如表和列表视图 | Header row or column, e.g. for tables and listviews | 
| QHebrewCodec | 视觉有序希伯来语的转换 | Conversion to and from visually ordered Hebrew | 
| QHideEvent | 事件是在小部件被隐藏之后发送的 | Event which is sent after a widget is hidden | 
| QHostAddress | IP地址 | IP address | 
| QHttp | 互联网协议的执行 | Implementation of the HTTP protocol | 
| QIMEvent | 输入法事件的参数 | Parameters for input method events | 
| QIODevice | I/O设备的基类 | The base class of I/O devices | 
| QIconDrag | 支持QCONVIEW中的拖放操作 | Supports drag and drop operations within a QIconView | 
| QIconDragItem | 封装阻力项目 | Encapsulates a drag item | 
| QIconSet | 不同风格和尺寸的图标集 | Set of icons with different styles and sizes | 
| QIconView | 带可移动标记图标的区域 | Area with movable labelled icons | 
| QIconViewItem | 单曲的一个主题 | Single item in a QIconView | 
| QImage | 与像素数据直接存取的独立于硬件的PixMax表示 | Hardware-independent pixmap representation with direct access to the pixel data | 
| QImageConsumer | QIMADEDECODER使用的抽象 | Abstraction used by QImageDecoder | 
| QImageDecoder | 用于所有支持图像格式的增量图像解码器 | Incremental image decoder for all supported image formats | 
| QImageDrag | 拖动图像传输对象 | Drag and drop object for transferring images | 
| QImageFormat | 用于特定图像格式的增量图像解码器 | Incremental image decoder for a specific image format | 
| QImageFormatPlugin | 自定义图像格式插件的抽象基础 | Abstract base for custom image format plugins | 
| QImageFormatType | 制作QiFig格式对象的工厂 | Factory that makes QImageFormat objects | 
| QImageIO | 加载和保存图像的参数 | Parameters for loading and saving images | 
| QInputDialog | 简单方便对话框从用户获取单个值 | Simple convenience dialog to get a single value from the user | 
| QIntCache | 基于长键提供缓存的模板类 | Template class that provides a cache based on long keys | 
| QIntCacheIterator | 秦岭藏品 | Iterator for QIntCache collections | 
| QIntDict | 基于长键提供字典的模板类 | Template class that provides a dictionary based on long keys | 
| QIntDictIterator | 琴蒂系列 | Iterator for QIntDict collections | 
| QIntValidator | 确保字符串在指定范围内包含有效整数的验证器 | Validator which ensures that a string contains a valid integer within a specified range | 
| QJisCodec | JIS字符集的转换与转换 | Conversion to and from JIS character sets | 
| QKeyEvent | 描述关键事件 | Describes a key event | 
| QKeySequence | 封装加速器所使用的密钥序列 | Encapsulates a key sequence as used by accelerators | 
| QLCDNumber | 显示一个带有LCD数字的数字 | Displays a number with LCD-like digits | 
| QLabel | 文字或图像显示 | Text or image display | 
| QLayout | 几何管理器的基类 | The base class of geometry managers | 
| QLayoutItem | 一个Q布局的抽象项操作 | Abstract item that a QLayout manipulates | 
| QLayoutIterator | Qlayoutitem之上的 | Iterators over QLayoutItem | 
| QLibrary | 处理共享库的包装器 | Wrapper for handling shared libraries | 
| QLineEdit | One-line text editor | One-line text editor | 
| QListBox | 可选择只读项目列表 | List of selectable, read-only items | 
| QListBoxItem | 所有列表框项的基类 | The base class of all list box items | 
| QListBoxPixmap | 用PixMax和可选文本列出框项 | List box items with a pixmap and optional text | 
| QListBoxText | 列出显示文本的框项 | List box items that display text | 
| QListView | 实现列表/树视图 | Implements a list/tree view | 
| QListViewItem | 实现列表视图项 | Implements a list view item | 
| QListViewItemIterator | qListVIEW项集合的迭代器 | Iterator for collections of QListViewItems | 
| QLocalFs | 在本地文件系统上工作的QNETWork协议的实现 | Implementation of a QNetworkProtocol that works on the local file system | 
| QLock | 系统V共享信号量的包装器 | Wrapper for a System V shared semaphore | 
| QMainWindow | 主应用程序窗口,带有菜单栏、停靠窗口(例如工具栏)和状态栏 | Main application window, with a menu bar, dock windows (e.g. for toolbars), and a status bar | 
| QMap | 基于值的提供字典的模板类 | Value-based template class that provides a dictionary | 
| QMapConstIterator | QMAP迭代器 | Iterator for QMap | 
| QMapIterator | QMAP迭代器 | Iterator for QMap | 
| QMemArray | 提供简单类型数组的模板类 | Template class that provides arrays of simple types | 
| QMenuBar | 水平菜单栏 | Horizontal menu bar | 
| QMenuData | QueNuBar和QPopupMenu的基类 | Base class for QMenuBar and QPopupMenu | 
| QMessageBox | 模态对话框与短消息,图标,和一些按钮 | Modal dialog with a short message, an icon, and some buttons | 
| QMetaObject | 关于QT对象的元信息 | Meta information about Qt objects | 
| QMetaProperty | Stores meta data about a property | Stores meta data about a property | 
| QMimeSource | 提供某种MIME类型的格式化数据的对象的抽象 | Abstraction of objects which provide formatted data of a certain MIME type | 
| QMimeSourceFactory | MIME类型数据的可扩展提供程序 | Extensible provider of mime-typed data | 
| QMotifPlusStyle | 更复杂的主题外观和感觉 | More sophisticated Motif-ish look and feel | 
| QMotifStyle | 主题外观 | Motif look and feel | 
| QMouseEvent | 描述鼠标事件的参数 | Parameters that describe a mouse event | 
| QMoveEvent | 移动事件的事件参数 | Event parameters for move events | 
| QMovie | 动画或图像的增量加载,随着其进程的信号传递 | Incremental loading of animations or images, signalling as it progresses | 
| QMutex | 线程间的访问序列化 | Access serialization between threads | 
| QNPInstance | QObjt是一个Web浏览器插件 | QObject that is a Web-browser plugin | 
| QNPStream | 浏览器提供给QNPNase实例的数据流 | Stream of data provided to a QNPInstance by the browser | 
| QNPWidget | QWIDGET,这是一个Web浏览器插件窗口 | QWidget that is a Web-browser plugin window | 
| QNPlugin | 插件中心工厂 | The plugin central factory | 
| QNetworkOperation | 网络协议的通用操作 | Common operations for network protocols | 
| QNetworkProtocol | 网络协议通用API | Common API for network protocols | 
| QObject | 所有QT对象的基类 | The base class of all Qt objects | 
| QObjectCleanupHandler | 监视多个QObjices的生存期 | Watches the lifetime of multiple QObjects | 
| QObjectList | Q对象的QPTRLIST | QPtrList of QObjects | 
| QObjectListIt | qObjtRealts的迭代器 | Iterator for QObjectLists | 
| QPNGImagePacker | 创建良好压缩的PNG动画 | Creates well-compressed PNG animations | 
| QPaintDevice | 可以画的对象的基类 | The base class of objects that can be painted | 
| QPaintDeviceMetrics | 关于油漆装置的信息 | Information about a paint device | 
| QPaintEvent | 绘制事件的事件参数 | Event parameters for paint events | 
| QPainter | 低级绘画吗? | Does low-level painting e.g. on widgets | 
| QPair | 基于值的模板类,它提供一对元素 | Value-based template class that provides a pair of elements | 
| QPalette | 每个小部件状态的颜色组 | Color groups for each widget state | 
| QPen | 定义q画家如何绘制线条和形状轮廓 | Defines how a QPainter should draw lines and outlines of shapes | 
| QPicture | 记录和重放QPrice命令的绘图设备 | Paint device that records and replays QPainter commands | 
| QPixmap | 基于屏幕的基于像素的油漆装置 | Off-screen, pixel-based paint device | 
| QPixmapCache | 应用全局缓存的PIXMAP | Application-global cache for pixmaps | 
| QPlatinumStyle | MAC /铂金外观 | Mac/Platinum look and feel | 
| QPoint | 定义平面中的一个点 | Defines a point in the plane | 
| QPointArray | 点数组 | Array of points | 
| QPopupMenu | 弹出菜单控件 | Popup menu widget | 
| QPrinter | 在打印机上喷漆的油漆装置 | Paint device that paints on a printer | 
| QProcess | 用于启动外部程序并与它们通信 | Used to start external programs and to communicate with them | 
| QProgressBar | 水平进度条 | Horizontal progress bar | 
| QProgressDialog | 慢操作进展反馈 | Feedback on the progress of a slow operation | 
| QPtrCollection | 基于指针的QT集合的基类 | The base class of most pointer-based Qt collections | 
| QPtrDict | 基于空隙*键提供字典的模板类 | Template class that provides a dictionary based on void* keys | 
| QPtrDictIterator | Iterator for QPTRDICT collections | Iterator for QPtrDict collections | 
| QPtrList | 提供双链表的模板类 | Template class that provides doubly-linked lists | 
| QPtrListIterator | QPTRIST集合的迭代器 | Iterator for QPtrList collections | 
| QPtrQueue | 提供队列的模板类 | Template class that provides a queue | 
| QPtrStack | 提供堆栈的模板类 | Template class that provides a stack | 
| QPtrVector | 提供向量(数组)的模板集合类 | Template collection class that provides a vector (array) | 
| QPushButton | 命令按钮 | Command button | 
| QRadioButton | 带有文本或PIMAP标签的单选按钮 | Radio button with a text or pixmap label | 
| QRangeControl | 范围内的整数值 | Integer value within a range | 
| QRect | 在平面中定义矩形 | Defines a rectangle in the plane | 
| QRegExp | 正则表达式的模式匹配 | Pattern matching using regular expressions | 
| QRegExpValidator | 用于检查字符串正则表达式 | Used to check a string against aregular expression | 
| QRegion | 画家的剪辑区域 | Clip region for a painter | 
| QResizeEvent | 调整大小事件的事件参数 | Event parameters for resize events | 
| QSGIStyle | SGI/IIX外观与感觉 | SGI/Irix look and feel | 
| QScreen | 它的后代管理框架缓冲区和调色板。 | And its descendants manage the framebuffer and palette | 
| QScrollBar | 垂直或水平滚动条 | Vertical or horizontal scroll bar | 
| QScrollView | 按需滚动条滚动区域 | Scrolling area with on-demand scroll bars | 
| QSemaphore | 稳健整数信号量 | Robust integer semaphore | 
| QServerSocket | 基于TCP的服务器 | TCP-based server | 
| QSessionManager | 访问会话管理器 | Access to the session manager | 
| QSettings | 持久平台无关应用程序设置 | Persistent platform-independent application settings | 
| QShowEvent | 显示小部件时发送的事件 | Event which is sent when a widget is shown | 
| QSignal | 可以用于为不继承QObjt的类发送信号。 | Can be used to send signals for classes that don't inherit QObject | 
| QSignalMapper | Bundles signals from identifiable senders | Bundles signals from identifiable senders | 
| QSimpleRichText | 可显示的小文本 | Small displayable piece of rich text | 
| QSize | 定义二维对象的大小 | Defines the size of a two-dimensional object | 
| QSizeGrip | 用于调整顶层窗口大小的角柄 | Corner-grip for resizing a top-level window | 
| QSizePolicy | 描述水平和垂直调整大小策略的布局属性 | Layout attribute describing horizontal and vertical resizing policy | 
| QSjisCodec | 转换到JIS的转换 | Conversion to and from Shift-JIS | 
| QSlider | 垂直或水平滑块 | Vertical or horizontal slider | 
| QSocket | 缓冲TCP连接 | Buffered TCP connection | 
| QSocketDevice | 与平台无关的低级套接字API | Platform-independent low-level socket API | 
| QSocketNotifier | 支持套接字回调 | Support for socket callbacks | 
| QSound | 平台音频设备的接入 | Access to the platform audio facilities | 
| QSpacerItem | 布局中的空白 | Blank space in a layout | 
| QSpinBox | Spin box widget (spin button) | Spin box widget (spin button) | 
| QSplitter | 实现拆分器控件 | Implements a splitter widget | 
| QSql | 需要全局性的QT-SQL标识符的命名空间 | Namespace for Qt SQL identifiers that need to be global-like | 
| QSqlCursor | 浏览和编辑SQL表和视图 | Browsing and editing of SQL tables and views | 
| QSqlDatabase | 用于创建SQL数据库连接并提供事务处理 | Used to create SQL database connections and provide transaction handling | 
| QSqlDriver | 用于访问SQL数据库的抽象基类 | Abstract base class for accessing SQL databases | 
| QSqlDriverPlugin | 自定义QSql驱动程序插件的抽象基础 | Abstract base for custom QSqlDriver plugins | 
| QSqlEditorFactory | 用于创建QDATABLE和QSqlForm所使用的编辑器 | Used to create the editors used by QDataTable and QSqlForm | 
| QSqlError | SQL数据库错误信息 | SQL database error information | 
| QSqlField | 操作SQL数据库表和视图中的字段 | Manipulates the fields in SQL database tables and views | 
| QSqlFieldInfo | 存储与SQL字段相关联的元数据 | Stores meta data associated with a SQL field | 
| QSqlForm | 创建和管理绑定到SQL数据库的数据输入窗体 | Creates and manages data entry forms tied to SQL databases | 
| QSqlIndex | 操作和描述QSql游标和QSqlDatabase索引的函数 | Functions to manipulate and describe QSqlCursor and QSqlDatabase indexes | 
| QSqlPropertyMap | 用于将窗口小部件映射到SQL字段 | Used to map widgets to SQL fields | 
| QSqlQuery | 执行和操作SQL语句的方法 | Means of executing and manipulating SQL statements | 
| QSqlRecord | 封装数据库记录,即一组数据库字段。 | Encapsulates a database record, i.e. a set of database fields | 
| QSqlRecordInfo | 封装一组数据库字段元数据 | Encapsulates a set of database field meta data | 
| QSqlResult | 从SQL数据库访问数据的抽象接口 | Abstract interface for accessing data from SQL databases | 
| QStatusBar | 适用于显示状态信息的横杆 | Horizontal bar suitable for presenting status information | 
| QStoredDrag | 任意MIME数据的简单存储值拖动对象 | Simple stored-value drag object for arbitrary MIME data | 
| QStrIList | 与不区分大小写比较的CHAR*双链表 | Doubly-linked list of char* with case-insensitive comparison | 
| QStrList | 字符的双链表 | Doubly-linked list of char* | 
| QStrListIterator | QSTRIST和QSTRILIST类的迭代器 | Iterator for the QStrList and QStrIList classes | 
| QString | Unicode文本和经典C空终止字符数组的抽象 | Abstraction of Unicode text and the classic C null-terminated char array | 
| QStringList | 字符串表 | List of strings | 
| QStyle | GUI的外观和感觉 | The look and feel of a GUI | 
| QStyleFactory | 创建qStar对象 | Creates QStyle objects | 
| QStyleOption | qStle函数的可选参数 | Optional parameters for QStyle functions | 
| QStylePlugin | 自定义QSLUE插件抽象库 | Abstract base for custom QStyle plugins | 
| QStyleSheet | 用于丰富文本渲染的样式集合和标签生成器 | Collection of styles for rich text rendering and a generator of tags | 
| QStyleSheetItem | 一组文本样式的封装 | Encapsulation of a set of text styles | 
| QTab | QTabar中的结构 | The structures in a QTabBar | 
| QTabBar | 标签栏,例如在标签对话框中使用 | Tab bar, e.g. for use in tabbed dialogs | 
| QTabDialog | 选项卡小部件的堆栈 | Stack of tabbed widgets | 
| QTabWidget | 选项卡小部件的堆栈 | Stack of tabbed widgets | 
| QTable | 灵活可编辑表控件 | Flexible editable table widget | 
| QTableItem | QTABLE细胞的细胞含量 | The cell content for QTable cells | 
| QTableSelection | 在QTABLE中访问选定区域 | Access to a selected area in a QTable | 
| QTabletEvent | 描述平板事件的参数 | Parameters that describe a Tablet event | 
| QTextBrowser | 具有超文本导航的富文本浏览器 | Rich text browser with hypertext navigation | 
| QTextCodec | 文本编码之间的转换 | Conversion between text encodings | 
| QTextCodecPlugin | 自定义QTraceCDEC插件抽象库 | Abstract base for custom QTextCodec plugins | 
| QTextDecoder | 状态译码器 | State-based decoder | 
| QTextDrag | 拖动对象以传递普通和Unicode文本 | Drag and drop object for transferring plain and Unicode text | 
| QTextEdit | 强大的单页富文本编辑器 | Powerful single-page rich text editor | 
| QTextEncoder | 状态编码器 | State-based encoder | 
| QTextIStream | 输入流的便利类 | Convenience class for input streams | 
| QTextOStream | 输出流的便利类 | Convenience class for output streams | 
| QTextStream | 使用Qoo装置阅读和书写文本的基本功能 | Basic functions for reading and writing text using a QIODevice | 
| QThread | 独立于平台的线程 | Platform-independent threads | 
| QTime | 时钟时间函数 | Clock time functions | 
| QTimeEdit | 时间编辑器 | Time editor | 
| QTimer | 计时器信号和单炮计时器 | Timer signals and single-shot timers | 
| QTimerEvent | 描述定时器事件的参数 | Parameters that describe a timer event | 
| QToolBar | 包含工具按钮等小部件的活动面板 | Movable panel containing widgets such as tool buttons | 
| QToolButton | 命令或选项的快速访问按钮,通常用于QTooBar中 | Quick-access button to commands or options, usually used inside a QToolBar | 
| QToolTip | 小工具的任何小部件或矩形部分的工具提示(气球帮助) | Tool tips (balloon help) for any widget or rectangular part of a widget | 
| QToolTipGroup | 将工具提示收集到相关组中 | Collects tool tips into related groups | 
| QTranslator | 国际化支持文本输出 | Internationalizationsupport for text output | 
| QTranslatorMessage | 翻译器消息及其性质 | Translator message and its properties | 
| QTsciiCodec | TAMIL TSCII编码的转换与转换 | Conversion to and from the Tamil TSCII encoding | 
| QUriDrag | 拖动对象以获取URI引用的列表 | Drag object for a list of URI references | 
| QUrl | URL解析器,简化了URL的工作 | URL parser and simplifies working with URLs | 
| QUrlInfo | Stores information about URLs | Stores information about URLs | 
| QUrlOperator | URL的通用操作 | Common operations on URLs | 
| QVBox | 子控件的垂直几何管理 | Vertical geometry management of its child widgets | 
| QVBoxLayout | 垂直排列小部件 | Lines up widgets vertically | 
| QVButtonGroup | 在垂直列中组织QButt小部件 | Organizes QButton widgets in a vertical column | 
| QVGroupBox | 在垂直列中组织一组小部件 | Organizes a group of widgets in a vertical column | 
| QValidator | 输入文本的验证 | Validation of input text | 
| QValueList | 提供双链表的基于值的模板类 | Value-based template class that provides doubly linked lists | 
| QValueListConstIterator | QValeleListconst迭代器 | Const iterator for QValueList | 
| QValueListIterator | qValeleListIt的迭代器 | Iterator for QValueList | 
| QValueStack | 提供堆栈的基于值的模板类 | Value-based template class that provides a stack | 
| QValueVector | 提供动态数组的基于值的模板类 | Value-based template class that provides a dynamic array | 
| QVariant | 就像最常见的QT数据类型的联合 | Acts like a union for the most common Qt data types | 
| QWMatrix | 坐标系的二维变换 | 2D transformations of a coordinate system | 
| QWSDecoration | 允许定制Qt/Ent+窗口管理器的外观 | Allows the appearance of the Qt/Embedded Window Manager to be customized | 
| QWSKeyboardHandler | 实现Qt/Engt的键盘驱动程序/处理器 | Implements the keyboard driver/handler for Qt/Embedded | 
| QWSMouseHandler | QT/嵌入式鼠标驱动程序/处理程序 | Mouse driver/handler for Qt/Embedded | 
| QWSServer | Qt/Engin中的服务器特定功能 | Server-specific functionality in Qt/Embedded | 
| QWSWindow | Qt/Engin中的服务器特定功能 | Server-specific functionality in Qt/Embedded | 
| QWaitCondition | 允许等待/唤醒线程间的条件 | Allows waiting/waking for conditions between threads | 
| QWhatsThis | 简单描述任何小部件,即回答“这是什么?” | Simple description of any widget, i.e. answering the question "What's this?" | 
| QWheelEvent | 描述车轮事件的参数 | Parameters that describe a wheel event | 
| QWidget | 所有用户界面对象的基类 | The base class of all user interface objects | 
| QWidgetFactory | 从Qt设计器.UI文件中动态创建小部件 | For the dynamic creation of widgets from Qt Designer .ui files | 
| QWidgetItem | 表示小部件的布局项目 | Layout item that represents a widget | 
| QWidgetPlugin | 自定义QWIDGET插件的抽象基础 | Abstract base for custom QWidget plugins | 
| QWidgetStack | 只显示顶部控件的小部件堆栈是用户可见的 | Stack of widgets of which only the top widget is user-visible | 
| QWindowsMime | 将标准MIME打开到窗口剪贴板格式 | Maps open-standard MIME to Window Clipboard formats | 
| QWindowsStyle | 微软视窗 | Microsoft Windows-like look and feel | 
| QWizard | 向导对话框框架 | Framework for wizard dialogs | 
| QWorkspace | Workspace window that can contain decorated windows, e.g. for MDI | Workspace window that can contain decorated windows, e.g. for MDI | 
| QXmlAttributes | XML属性 | XML attributes | 
| QXmlContentHandler | 接口以报告XML数据的逻辑内容 | Interface to report the logical content of XML data | 
| QXmlDTDHandler | 报告XML数据DTD内容的接口 | Interface to report DTD content of XML data | 
| QXmlDeclHandler | XML数据报表声明内容接口 | Interface to report declaration content of XML data | 
| QXmlDefaultHandler | 所有XML处理程序类的默认实现 | Default implementation of all XML handler classes | 
| QXmlEntityResolver | 接口解决XML数据中包含的外部实体 | Interface to resolve external entities contained in XML data | 
| QXmlErrorHandler | 在XML数据中报告错误的接口 | Interface to report errors in XML data | 
| QXmlInputSource | QXMLRead子类的输入数据 | The input data for the QXmlReader subclasses | 
| QXmlLexicalHandler | XML数据的词汇内容报告接口 | Interface to report the lexical content of XML data | 
| QXmlLocator | 具有文件内解析位置信息的XML处理程序类 | The XML handler classes with information about the parsing position within a file | 
| QXmlNamespaceSupport | 希望包含命名空间支持的XML读取器的帮助类 | Helper class for XML readers which want to include namespace support | 
| QXmlParseException | 用于用QXmlErrorHandler接口报告错误 | Used to report errors with the QXmlErrorHandler interface | 
| QXmlReader | XML阅读器的接口(即解析器) | Interface for XML readers (i.e. parsers) | 
| QXmlSimpleReader | 一个简单的XML阅读器(解析器)的实现 | Implementation of a simple XML reader (parser) | 
| QXtApplication | 促进XT/MyTf和QT小部件的混合 | Facilitates the mixing of Xt/Motif and Qt widgets | 
| QXtWidget | 允许XT/MyTf和QT小部件的混合 | Allows mixing of Xt/Motif and Qt widgets | 
| Qt | 需要全局性的杂项标识符的命名空间 | Namespace for miscellaneous identifiers that need to be global-like |