section 3 · Library functions 📚

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Q (continued)

qdockarea(3qt)Manages and lays out QDockWindows✨
QDockWindow(3qt)Widget which can be docked inside a QDockArea or floated as a top level window on the desktop✨
qdockwindow(3qt)Widget which can be docked inside a QDockArea or floated as a top level window on the desktop✨
QDomAttr(3qt)Represents one attribute of a QDomElement✨
qdomattr(3qt)Represents one attribute of a QDomElement✨
QDomCDATASection(3qt)Represents an XML CDATA section✨
qdomcdatasection(3qt)Represents an XML CDATA section✨
QDomCharacterData(3qt)Represents a generic string in the DOM✨
qdomcharacterdata(3qt)Represents a generic string in the DOM✨
QDomComment(3qt)Represents an XML comment✨
qdomcomment(3qt)Represents an XML comment✨
QDomDocument(3qt)Represents an XML document✨
qdomdocument(3qt)Represents an XML document✨
QDomDocumentFragment(3qt)Tree of QDomNodes which is not usually a complete QDomDocument✨
qdomdocumentfragment(3qt)Tree of QDomNodes which is not usually a complete QDomDocument✨
QDomDocumentType(3qt)The representation of the DTD in the document tree✨
qdomdocumenttype(3qt)The representation of the DTD in the document tree✨
QDomElement(3qt)Represents one element in the DOM tree✨
qdomelement(3qt)Represents one element in the DOM tree✨
QDomEntity(3qt)Represents an XML entity✨
qdomentity(3qt)Represents an XML entity✨
QDomEntityReference(3qt)Represents an XML entity reference✨
qdomentityreference(3qt)Represents an XML entity reference✨
QDomImplementation(3qt)Information about the features of the DOM implementation✨
qdomimplementation(3qt)Information about the features of the DOM implementation✨
QDomNamedNodeMap(3qt)Collection of nodes that can be accessed by name✨
qdomnamednodemap(3qt)Collection of nodes that can be accessed by name✨
QDomNode(3qt)The base class for all the nodes in a DOM tree✨
qdomnode(3qt)The base class for all the nodes in a DOM tree✨
QDomNodeList(3qt)List of QDomNode objects✨
qdomnodelist(3qt)List of QDomNode objects✨
QDomNotation(3qt)Represents an XML notation✨
qdomnotation(3qt)Represents an XML notation✨
QDomProcessingInstruction(3qt)Represents an XML processing instruction✨
qdomprocessinginstruction(3qt)Represents an XML processing instruction✨
QDomText(3qt)Represents text data in the parsed XML document✨
qdomtext(3qt)Represents text data in the parsed XML document✨
QDoubleValidator(3qt)Range checking of floating-point numbers✨
qdoublevalidator(3qt)Range checking of floating-point numbers✨
qdqueue_create(3)allocate a distributed queue✨
qdqueue_dequeue(3)remove an element from a distributed queue✨
qdqueue_destroy(3)deallocate a distributed queue✨
qdqueue_empty(3)test whether a distributed queue is empty✨
qdqueue_enqueue(3)append an element to a distributed queue✨
qdqueue_enqueue_there(3)append an element to a distributed queue✨
QDragEnterEvent(3qt)Event which is sent to the widget when a drag and drop first drags onto the widget✨
qdragenterevent(3qt)Event which is sent to the widget when a drag and drop first drags onto the widget✨
QDragLeaveEvent(3qt)Event which is sent to the widget when a drag and drop leaves the widget✨
qdragleaveevent(3qt)Event which is sent to the widget when a drag and drop leaves the widget✨
QDragMoveEvent(3qt)Event which is sent while a drag and drop is in progress✨
qdragmoveevent(3qt)Event which is sent while a drag and drop is in progress✨
QDragObject(3qt)Encapsulates MIME-based data transfer✨
qdragobject(3qt)Encapsulates MIME-based data transfer✨
QDropEvent(3qt)Event which is sent when a drag and drop is completed✨
qdropevent(3qt)Event which is sent when a drag and drop is completed✨
qecvt(3)convert a floating-point number to a string✨
qecvt_r(3)convert a floating-point number to a string✨
QEditorFactory(3qt)Used to create editor widgets for QVariant data types✨
qeditorfactory(3qt)Used to create editor widgets for QVariant data types✨
QErrorMessage(3qt)Error message display dialog✨
qerrormessage(3qt)Error message display dialog✨
QEucJpCodec(3qt)Conversion to and from EUC-JP character sets✨
qeucjpcodec(3qt)Conversion to and from EUC-JP character sets✨
QEucKrCodec(3qt)Conversion to and from EUC-KR character sets✨
qeuckrcodec(3qt)Conversion to and from EUC-KR character sets✨
QEvent(3qt)The base class of all event classes. Event objects contain event parameters✨
qevent(3qt)The base class of all event classes. Event objects contain event parameters✨
QEventLoop(3qt)Manages the event queue✨
qeventloop(3qt)Manages the event queue✨
qfcvt(3)convert a floating-point number to a string✨
qfcvt_r(3)convert a floating-point number to a string✨
qfi(3)✨
QFile(3qt)I/O device that operates on files✨
qfile(3qt)I/O device that operates on files✨
QFileDialog(3qt)Dialogs that allow users to select files or directories✨
qfiledialog(3qt)Dialogs that allow users to select files or directories✨
QFileIconProvider(3qt)Icons for QFileDialog to use✨
qfileiconprovider(3qt)Icons for QFileDialog to use✨
QFileInfo(3qt)System-independent file information✨
qfileinfo(3qt)System-independent file information✨
QFilePreview(3qt)File previewing in QFileDialog✨
qfilepreview(3qt)File previewing in QFileDialog✨
QFocusData(3qt)Maintains the list of widgets in the focus chain✨
qfocusdata(3qt)Maintains the list of widgets in the focus chain✨
QFocusEvent(3qt)Event parameters for widget focus events✨
qfocusevent(3qt)Event parameters for widget focus events✨
QFont(3qt)Font used for drawing text✨
qfont(3qt)Font used for drawing text✨
QFontDatabase(3qt)Information about the fonts available in the underlying window system✨
qfontdatabase(3qt)Information about the fonts available in the underlying window system✨
QFontDialog(3qt)Dialog widget for selecting a font✨
qfontdialog(3qt)Dialog widget for selecting a font✨
QFontInfo(3qt)General information about fonts✨
qfontinfo(3qt)General information about fonts✨
QFontManager(3qt)Implements font management in Qt/Embedded✨
qfontmanager(3qt)Implements font management in Qt/Embedded✨
QFontMetrics(3qt)Font metrics information✨
qfontmetrics(3qt)Font metrics information✨
QFrame(3qt)The base class of widgets that can have a frame✨
qframe(3qt)The base class of widgets that can have a frame✨
QFtp(3qt)Implementation of the FTP protocol✨
qftp(3qt)Implementation of the FTP protocol✨
QGb18030Codec(3qt)Conversion to and from the Chinese GB18030/GBK/GB2312 encoding✨
qgb18030codec(3qt)Conversion to and from the Chinese GB18030/GBK/GB2312 encoding✨
QGb2312Codec(3qt)Conversion to and from the Chinese GB2312 encoding✨
qgb2312codec(3qt)Conversion to and from the Chinese GB2312 encoding✨
QGbkCodec(3qt)Conversion to and from the Chinese GBK encoding✨
qgbkcodec(3qt)Conversion to and from the Chinese GBK encoding✨
qgcvt(3)convert a floating-point number to a string✨
QGfxDriverFactory(3qt)Creates QScreen objects for Qt/Embedded✨
qgfxdriverfactory(3qt)Creates QScreen objects for Qt/Embedded✨
QGfxDriverPlugin(3qt)Abstract base for Qt/Embedded graphics driver plugins✨
qgfxdriverplugin(3qt)Abstract base for Qt/Embedded graphics driver plugins✨
QGL(3qt)Namespace for miscellaneous identifiers in the Qt OpenGL module✨
qgl(3qt)Namespace for miscellaneous identifiers in the Qt OpenGL module✨
QGLayoutIterator(3qt)Abstract base class of internal layout iterators✨
qglayoutiterator(3qt)Abstract base class of internal layout iterators✨
QGLColormap(3qt)Used for installing custom colormaps into QGLWidgets✨
qglcolormap(3qt)Used for installing custom colormaps into QGLWidgets✨
QGLContext(3qt)Encapsulates an OpenGL rendering context✨
qglcontext(3qt)Encapsulates an OpenGL rendering context✨
QGLFormat(3qt)The display format of an OpenGL rendering context✨
qglformat(3qt)The display format of an OpenGL rendering context✨
QGLWidget(3qt)Widget for rendering OpenGL graphics✨
qglwidget(3qt)Widget for rendering OpenGL graphics✨
QGrid(3qt)Simple geometry management of its children✨
qgrid(3qt)Simple geometry management of its children✨
QGridLayout(3qt)Lays out widgets in a grid✨
qgridlayout(3qt)Lays out widgets in a grid✨
QGridView(3qt)Abstract base for fixed-size grids✨
qgridview(3qt)Abstract base for fixed-size grids✨
QGroupBox(3qt)Group box frame with a title✨
qgroupbox(3qt)Group box frame with a title✨
QGuardedPtr(3qt)Template class that provides guarded pointers to QObjects✨
qguardedptr(3qt)Template class that provides guarded pointers to QObjects✨
QHBox(3qt)Horizontal geometry management for its child widgets✨
qhbox(3qt)Horizontal geometry management for its child widgets✨
QHBoxLayout(3qt)Lines up widgets horizontally✨
qhboxlayout(3qt)Lines up widgets horizontally✨
QHButtonGroup(3qt)Organizes QButton widgets in a group with one horizontal row✨
qhbuttongroup(3qt)Organizes QButton widgets in a group with one horizontal row✨
QHeader(3qt)Header row or column, e.g. for tables and listviews✨
qheader(3qt)Header row or column, e.g. for tables and listviews✨
QHebrewCodec(3qt)Conversion to and from visually ordered Hebrew✨
qhebrewcodec(3qt)Conversion to and from visually ordered Hebrew✨
QHGroupBox(3qt)Organizes widgets in a group with one horizontal row✨
qhgroupbox(3qt)Organizes widgets in a group with one horizontal row✨
QHideEvent(3qt)Event which is sent after a widget is hidden✨
qhideevent(3qt)Event which is sent after a widget is hidden✨
QHostAddress(3qt)IP address✨
qhostaddress(3qt)IP address✨
QHttp(3qt)Implementation of the HTTP protocol✨
qhttp(3qt)Implementation of the HTTP protocol✨
QHttpHeader(3qt)Header information for HTTP✨
qhttpheader(3qt)Header information for HTTP✨
QHttpRequestHeader(3qt)Request header information for HTTP✨
qhttprequestheader(3qt)Request header information for HTTP✨
QHttpResponseHeader(3qt)Response header information for HTTP✨
qhttpresponseheader(3qt)Response header information for HTTP✨
qhy_input(3)✨
QIconDrag(3qt)Supports drag and drop operations within a QIconView✨
qicondrag(3qt)Supports drag and drop operations within a QIconView✨
QIconDragEvent(3qt)Signals that a main icon drag has begun✨
qicondragevent(3qt)Signals that a main icon drag has begun✨
QIconDragItem(3qt)Encapsulates a drag item✨
qicondragitem(3qt)Encapsulates a drag item✨
QIconFactory(3qt)Used to create pixmaps for a QIconSet✨
qiconfactory(3qt)Used to create pixmaps for a QIconSet✨
QIconSet(3qt)Set of icons with different styles and sizes✨
qiconset(3qt)Set of icons with different styles and sizes✨
QIconView(3qt)Area with movable labelled icons✨
qiconview(3qt)Area with movable labelled icons✨
QIconViewItem(3qt)Single item in a QIconView✨
qiconviewitem(3qt)Single item in a QIconView✨
qiflush(3)get and set curses terminal input options✨
qiflush(3ncurses)get and set curses terminal input options✨
qiflush(3x)get and set curses terminal input options✨
qiflush_sp(3)curses screen-pointer extension✨
qiflush_sp(3ncurses)curses screen-pointer extension✨
qiflush_sp(3x)curses screen-pointer extension✨
QImage(3qt)Hardware-independent pixmap representation with direct access to the pixel data✨
qimage(3qt)Hardware-independent pixmap representation with direct access to the pixel data✨
QImageConsumer(3qt)Abstraction used by QImageDecoder✨
qimageconsumer(3qt)Abstraction used by QImageDecoder✨
QImageDecoder(3qt)Incremental image decoder for all supported image formats✨
qimagedecoder(3qt)Incremental image decoder for all supported image formats✨
QImageDrag(3qt)Drag and drop object for transferring images✨
qimagedrag(3qt)Drag and drop object for transferring images✨
QImageFormat(3qt)Incremental image decoder for a specific image format✨
qimageformat(3qt)Incremental image decoder for a specific image format✨
QImageFormatPlugin(3qt)Abstract base for custom image format plugins✨
qimageformatplugin(3qt)Abstract base for custom image format plugins✨
QImageFormatType(3qt)Factory that makes QImageFormat objects✨
qimageformattype(3qt)Factory that makes QImageFormat objects✨
QImageIO(3qt)Parameters for loading and saving images✨
qimageio(3qt)Parameters for loading and saving images✨
QIMEvent(3qt)Parameters for input method events✨
qimevent(3qt)Parameters for input method events✨
QInputDialog(3qt)Simple convenience dialog to get a single value from the user✨
qinputdialog(3qt)Simple convenience dialog to get a single value from the user✨