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<title>Qt 4.2: Qt 3 Compatibility Classes</title>
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<td width="1"> </td><td class="postheader" valign="center"><a href="index.html"><font color="#004faf">Home</font></a> · <a href="classes.html"><font color="#004faf">All Classes</font></a> · <a href="mainclasses.html"><font color="#004faf">Main Classes</font></a> · <a href="groups.html"><font color="#004faf">Grouped Classes</font></a> · <a href="modules.html"><font color="#004faf">Modules</font></a> · <a href="functions.html"><font color="#004faf">Functions</font></a></td>
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<p>This is a list of the classes that Qt provides for compatibility with Qt 3. The vast majority of these are provided by the <a href="qt3support.html">Qt3Support</a> module.</p>
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<td align="right"><b>3 </b></td>
<td><a href="q3accel.html">Q3Accel</a></td>
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<td><a href="q3databrowser.html">Q3DataBrowser</a></td>
<td align="right"></td>
<td><a href="q3icondrag.html">Q3IconDrag</a></td>
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<td><a href="q3ptrcollection.html">Q3PtrCollection</a></td>
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<td><a href="q3tabdialog.html">Q3TabDialog</a></td>
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<td align="right"></td>
<td><a href="q3action.html">Q3Action</a></td>
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<td><a href="q3datatable.html">Q3DataTable</a></td>
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<td><a href="q3icondragitem.html">Q3IconDragItem</a></td>
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<td><a href="q3ptrdict.html">Q3PtrDict</a></td>
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<td><a href="q3table.html">Q3Table</a></td>
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<td align="right"></td>
<td><a href="q3actiongroup.html">Q3ActionGroup</a></td>
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<td><a href="q3dataview.html">Q3DataView</a></td>
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<td><a href="q3iconview.html">Q3IconView</a></td>
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<td><a href="q3ptrdictiterator.html">Q3PtrDictIterator</a></td>
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<td><a href="q3tableitem.html">Q3TableItem</a></td>
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<td align="right"></td>
<td><a href="q3asciicache.html">Q3AsciiCache</a></td>
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<td><a href="q3dateedit.html">Q3DateEdit</a></td>
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<td><a href="q3iconviewitem.html">Q3IconViewItem</a></td>
<td align="right"></td>
<td><a href="q3ptrlist.html">Q3PtrList</a></td>
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<td><a href="q3tableselection.html">Q3TableSelection</a></td>
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<td align="right"></td>
<td><a href="q3asciicacheiterator.html">Q3AsciiCacheIterator</a></td>
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<td><a href="q3datetimeedit.html">Q3DateTimeEdit</a></td>
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<td><a href="q3imagedrag.html">Q3ImageDrag</a></td>
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<td><a href="q3ptrlistiterator.html">Q3PtrListIterator</a></td>
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<td><a href="q3textbrowser.html">Q3TextBrowser</a></td>
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<td align="right"></td>
<td><a href="q3asciidict.html">Q3AsciiDict</a></td>
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<td><a href="q3datetimeeditbase.html">Q3DateTimeEditBase</a></td>
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<td><a href="q3intcache.html">Q3IntCache</a></td>
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<td><a href="q3ptrqueue.html">Q3PtrQueue</a></td>
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<td><a href="q3textdrag.html">Q3TextDrag</a></td>
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<td align="right"></td>
<td><a href="q3asciidictiterator.html">Q3AsciiDictIterator</a></td>
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<td><a href="q3deepcopy.html">Q3DeepCopy</a></td>
<td align="right"></td>
<td><a href="q3intcacheiterator.html">Q3IntCacheIterator</a></td>
<td align="right"></td>
<td><a href="q3ptrstack.html">Q3PtrStack</a></td>
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<td><a href="q3textedit.html">Q3TextEdit</a></td>
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<td align="right"></td>
<td><a href="q3button.html">Q3Button</a></td>
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<td><a href="q3dict.html">Q3Dict</a></td>
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<td><a href="q3intdict.html">Q3IntDict</a></td>
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<td><a href="q3ptrvector.html">Q3PtrVector</a></td>
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<td><a href="q3textstream.html">Q3TextStream</a></td>
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<td align="right"></td>
<td><a href="q3buttongroup.html">Q3ButtonGroup</a></td>
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<td><a href="q3dictiterator.html">Q3DictIterator</a></td>
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<td><a href="q3intdictiterator.html">Q3IntDictIterator</a></td>
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<td><a href="q3rangecontrol.html">Q3RangeControl</a></td>
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<td><a href="q3textview.html">Q3TextView</a></td>
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<td align="right"></td>
<td><a href="q3cache.html">Q3Cache</a></td>
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<td><a href="q3dns.html">Q3Dns</a></td>
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<td><a href="q3listbox.html">Q3ListBox</a></td>
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<td><a href="q3scrollview.html">Q3ScrollView</a></td>
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<td><a href="q3timeedit.html">Q3TimeEdit</a></td>
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<td align="right"></td>
<td><a href="q3cacheiterator.html">Q3CacheIterator</a></td>
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<td><a href="q3dockarea.html">Q3DockArea</a></td>
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<td><a href="q3listboxitem.html">Q3ListBoxItem</a></td>
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<td><a href="q3semaphore.html">Q3Semaphore</a></td>
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<td><a href="q3toolbar.html">Q3ToolBar</a></td>
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<td align="right"></td>
<td><a href="q3canvas.html">Q3Canvas</a></td>
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<td><a href="q3dockwindow.html">Q3DockWindow</a></td>
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<td><a href="q3listboxpixmap.html">Q3ListBoxPixmap</a></td>
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<td><a href="q3serversocket.html">Q3ServerSocket</a></td>
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<td><a href="q3uridrag.html">Q3UriDrag</a></td>
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<td align="right"></td>
<td><a href="q3canvasellipse.html">Q3CanvasEllipse</a></td>
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<td><a href="q3dragobject.html">Q3DragObject</a></td>
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<td><a href="q3listboxtext.html">Q3ListBoxText</a></td>
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<td><a href="q3shared.html">Q3Shared</a></td>
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<td><a href="q3url.html">Q3Url</a></td>
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<td><a href="q3canvasitem.html">Q3CanvasItem</a></td>
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<td><a href="q3dropsite.html">Q3DropSite</a></td>
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<td><a href="q3listview.html">Q3ListView</a></td>
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<td><a href="q3signal.html">Q3Signal</a></td>
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<td><a href="q3urloperator.html">Q3UrlOperator</a></td>
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<td align="right"></td>
<td><a href="q3canvasitemlist.html">Q3CanvasItemList</a></td>
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<td><a href="q3editorfactory.html">Q3EditorFactory</a></td>
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<td><a href="q3listviewitem.html">Q3ListViewItem</a></td>
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<td><a href="q3simplerichtext.html">Q3SimpleRichText</a></td>
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<td><a href="q3valuelist.html">Q3ValueList</a></td>
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<td align="right"></td>
<td><a href="q3canvasline.html">Q3CanvasLine</a></td>
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<td><a href="q3filedialog.html">Q3FileDialog</a></td>
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<td><a href="q3listviewitemiterator.html">Q3ListViewItemIterator</a></td>
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<td><a href="q3socket.html">Q3Socket</a></td>
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<td><a href="q3valuelistconstiterator.html">Q3ValueListConstIterator</a></td>
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<td align="right"></td>
<td><a href="q3canvaspixmap.html">Q3CanvasPixmap</a></td>
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<td><a href="q3fileiconprovider.html">Q3FileIconProvider</a></td>
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<td><a href="q3localfs.html">Q3LocalFs</a></td>
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<td><a href="q3socketdevice.html">Q3SocketDevice</a></td>
<td align="right"></td>
<td><a href="q3valuelistiterator.html">Q3ValueListIterator</a></td>
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<td align="right"></td>
<td><a href="q3canvaspixmaparray.html">Q3CanvasPixmapArray</a></td>
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<td><a href="q3filepreview.html">Q3FilePreview</a></td>
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<td><a href="q3mainwindow.html">Q3MainWindow</a></td>
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<td><a href="q3sqlcursor.html">Q3SqlCursor</a></td>
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<td><a href="q3valuestack.html">Q3ValueStack</a></td>
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<td align="right"></td>
<td><a href="q3canvaspolygon.html">Q3CanvasPolygon</a></td>
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<td><a href="q3frame.html">Q3Frame</a></td>
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<td><a href="q3memarray.html">Q3MemArray</a></td>
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<td><a href="q3sqleditorfactory.html">Q3SqlEditorFactory</a></td>
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<td><a href="q3valuevector.html">Q3ValueVector</a></td>
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<td align="right"></td>
<td><a href="q3canvaspolygonalitem.html">Q3CanvasPolygonalItem</a></td>
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<td><a href="q3ftp.html">Q3Ftp</a></td>
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<td><a href="q3mimesourcefactory.html">Q3MimeSourceFactory</a></td>
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<td><a href="q3sqlfieldinfo.html">Q3SqlFieldInfo</a></td>
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<td><a href="q3vbox.html">Q3VBox</a></td>
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<td align="right"></td>
<td><a href="q3canvasrectangle.html">Q3CanvasRectangle</a></td>
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<td><a href="q3grid.html">Q3Grid</a></td>
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<td><a href="q3multilineedit.html">Q3MultiLineEdit</a></td>
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<td><a href="q3sqlform.html">Q3SqlForm</a></td>
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<td><a href="q3vbuttongroup.html">Q3VButtonGroup</a></td>
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<td align="right"></td>
<td><a href="q3canvasspline.html">Q3CanvasSpline</a></td>
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<td><a href="q3gridview.html">Q3GridView</a></td>
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<td><a href="q3networkoperation.html">Q3NetworkOperation</a></td>
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<td><a href="q3sqlpropertymap.html">Q3SqlPropertyMap</a></td>
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<td><a href="q3vgroupbox.html">Q3VGroupBox</a></td>
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<td align="right"></td>
<td><a href="q3canvassprite.html">Q3CanvasSprite</a></td>
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<td><a href="q3groupbox.html">Q3GroupBox</a></td>
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<td><a href="q3networkprotocol.html">Q3NetworkProtocol</a></td>
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<td><a href="q3sqlrecordinfo.html">Q3SqlRecordInfo</a></td>
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<td><a href="q3whatsthis.html">Q3WhatsThis</a></td>
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<td align="right"></td>
<td><a href="q3canvastext.html">Q3CanvasText</a></td>
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<td><a href="q3hbox.html">Q3HBox</a></td>
<td align="right"></td>
<td><a href="q3paintdevicemetrics.html">Q3PaintDeviceMetrics</a></td>
<td align="right"></td>
<td><a href="q3sqlselectcursor.html">Q3SqlSelectCursor</a></td>
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<td><a href="q3widgetstack.html">Q3WidgetStack</a></td>
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<td align="right"></td>
<td><a href="q3canvasview.html">Q3CanvasView</a></td>
<td align="right"></td>
<td><a href="q3hbuttongroup.html">Q3HButtonGroup</a></td>
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<td><a href="q3painter.html">Q3Painter</a></td>
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<td><a href="q3storeddrag.html">Q3StoredDrag</a></td>
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<td><a href="q3wizard.html">Q3Wizard</a></td>
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<tr>
<td align="right"></td>
<td><a href="q3checklistitem.html">Q3CheckListItem</a></td>
<td align="right"></td>
<td><a href="q3header.html">Q3Header</a></td>
<td align="right"></td>
<td><a href="q3picture.html">Q3Picture</a></td>
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<td><a href="q3strilist.html">Q3StrIList</a></td>
<td align="right"><b>C </b></td>
<td><a href="qcolorgroup.html">QColorGroup</a></td>
</tr>
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<td align="right"></td>
<td><a href="q3checktableitem.html">Q3CheckTableItem</a></td>
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<td><a href="q3hgroupbox.html">Q3HGroupBox</a></td>
<td align="right"></td>
<td><a href="q3pointarray.html">Q3PointArray</a></td>
<td align="right"></td>
<td><a href="q3strlist.html">Q3StrList</a></td>
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<td><a href="qconststring.html">QConstString</a></td>
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<td align="right"></td>
<td><a href="q3colordrag.html">Q3ColorDrag</a></td>
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<td><a href="q3http.html">Q3Http</a></td>
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<td><a href="q3popupmenu.html">Q3PopupMenu</a></td>
<td align="right"></td>
<td><a href="q3strlistiterator.html">Q3StrListIterator</a></td>
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<td><a href="qcustomevent.html">QCustomEvent</a></td>
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<tr>
<td align="right"></td>
<td><a href="q3combobox.html">Q3ComboBox</a></td>
<td align="right"></td>
<td><a href="q3httpheader.html">Q3HttpHeader</a></td>
<td align="right"></td>
<td><a href="q3process.html">Q3Process</a></td>
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<td><a href="q3stylesheet.html">Q3StyleSheet</a></td>
<td align="right"><b>M </b></td>
<td><a href="qmenuitem.html">QMenuItem</a></td>
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<td align="right"></td>
<td><a href="q3combotableitem.html">Q3ComboTableItem</a></td>
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<td><a href="q3httprequestheader.html">Q3HttpRequestHeader</a></td>
<td align="right"></td>
<td><a href="q3progressbar.html">Q3ProgressBar</a></td>
<td align="right"></td>
<td><a href="q3stylesheetitem.html">Q3StyleSheetItem</a></td>
<td align="right"><b>T </b></td>
<td><a href="qtextistream.html">QTextIStream</a></td>
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<td align="right"></td>
<td><a href="q3cstring.html">Q3CString</a></td>
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<td><a href="q3httpresponseheader.html">Q3HttpResponseHeader</a></td>
<td align="right"></td>
<td><a href="q3progressdialog.html">Q3ProgressDialog</a></td>
<td align="right"></td>
<td><a href="q3syntaxhighlighter.html">Q3SyntaxHighlighter</a></td>
<td align="right"></td>
<td><a href="qtextostream.html">QTextOStream</a></td>
</tr>
</table></p>
<p>See also <a href="classes.html">Qt's Classes</a> and <a href="modules.html">Qt's Modules</a>.</p>
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