<?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE html> <html lang="en"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <!-- qevent.cpp --> <title>QDragMoveEvent Class | Qt GUI 5.9</title> <link rel="stylesheet" type="text/css" href="style/offline-simple.css" /> <script type="text/javascript"> document.getElementsByTagName("link").item(0).setAttribute("href", "style/offline.css"); // loading style sheet breaks anchors that were jumped to before // so force jumping to anchor again setTimeout(function() { var anchor = location.hash; // need to jump to different anchor first (e.g. none) location.hash = "#"; setTimeout(function() { location.hash = anchor; }, 0); }, 0); </script> </head> <body> <div class="header" id="qtdocheader"> <div class="main"> <div class="main-rounded"> <div class="navigationbar"> <table><tr> <td >Qt 5.9</td><td ><a href="qtgui-index.html">Qt GUI</a></td><td ><a href="qtgui-module.html">C++ Classes</a></td><td >QDragMoveEvent</td></tr></table><table class="buildversion"><tr> <td id="buildversion" width="100%" align="right">Qt 5.9.4 Reference Documentation</td> </tr></table> </div> </div> <div class="content"> <div class="line"> <div class="content mainContent"> <div class="sidebar"> <div class="toc"> <h3><a name="toc">Contents</a></h3> <ul> <li class="level1"><a href="#public-functions">Public Functions</a></li> <li class="level1"><a href="#details">Detailed Description</a></li> </ul> </div> <div class="sidebar-content" id="sidebar-content"></div></div> <h1 class="title">QDragMoveEvent Class</h1> <!-- $$$QDragMoveEvent-brief --> <p>The <a href="qdragmoveevent.html">QDragMoveEvent</a> class provides an event which is sent while a drag and drop action is in progress. <a href="#details">More...</a></p> <!-- @@@QDragMoveEvent --> <div class="table"><table class="alignedsummary"> <tr><td class="memItemLeft rightAlign topAlign"> Header:</td><td class="memItemRight bottomAlign"> <span class="preprocessor">#include <QDragMoveEvent></span> </td></tr><tr><td class="memItemLeft rightAlign topAlign"> qmake:</td><td class="memItemRight bottomAlign"> QT += gui</td></tr><tr><td class="memItemLeft rightAlign topAlign"> Inherits:</td><td class="memItemRight bottomAlign"> <a href="qdropevent.html">QDropEvent</a></td></tr><tr><td class="memItemLeft rightAlign topAlign"> Inherited By:</td><td class="memItemRight bottomAlign"> <p><a href="qdragenterevent.html">QDragEnterEvent</a></p> </td></tr></table></div><ul> <li><a href="qdragmoveevent-members.html">List of all members, including inherited members</a></li> </ul> <a name="public-functions"></a> <h2 id="public-functions">Public Functions</h2> <div class="table"><table class="alignedsummary"> <tr><td class="memItemLeft rightAlign topAlign"> </td><td class="memItemRight bottomAlign"><b><a href="qdragmoveevent.html#QDragMoveEvent">QDragMoveEvent</a></b>(const QPoint &<i>pos</i>, Qt::DropActions <i>actions</i>, const QMimeData *<i>data</i>, Qt::MouseButtons <i>buttons</i>, Qt::KeyboardModifiers <i>modifiers</i>, Type <i>type</i> = DragMove)</td></tr> <tr><td class="memItemLeft rightAlign topAlign"> </td><td class="memItemRight bottomAlign"><b><a href="qdragmoveevent.html#dtor.QDragMoveEvent">~QDragMoveEvent</a></b>()</td></tr> <tr><td class="memItemLeft rightAlign topAlign"> void </td><td class="memItemRight bottomAlign"><b><a href="qdragmoveevent.html#accept">accept</a></b>(const QRect &<i>rectangle</i>)</td></tr> <tr><td class="memItemLeft rightAlign topAlign"> void </td><td class="memItemRight bottomAlign"><b><a href="qdragmoveevent.html#accept-1">accept</a></b>()</td></tr> <tr><td class="memItemLeft rightAlign topAlign"> QRect </td><td class="memItemRight bottomAlign"><b><a href="qdragmoveevent.html#answerRect">answerRect</a></b>() const</td></tr> <tr><td class="memItemLeft rightAlign topAlign"> void </td><td class="memItemRight bottomAlign"><b><a href="qdragmoveevent.html#ignore">ignore</a></b>(const QRect &<i>rectangle</i>)</td></tr> <tr><td class="memItemLeft rightAlign topAlign"> void </td><td class="memItemRight bottomAlign"><b><a href="qdragmoveevent.html#ignore-1">ignore</a></b>()</td></tr> </table></div> <ul> <li class="fn">11 public functions inherited from <a href="qdropevent.html#public-functions">QDropEvent</a></li> <li class="fn">6 public functions inherited from <a href="../qtcore/qevent.html#public-functions">QEvent</a></li> </ul> <h3>Additional Inherited Members</h3> <ul> <li class="fn">1 property inherited from <a href="../qtcore/qevent.html#properties">QEvent</a></li> <li class="fn">1 static public member inherited from <a href="../qtcore/qevent.html#static-public-members">QEvent</a></li> <li class="fn">2 protected variables inherited from <a href="../qtcore/qevent.html#protected-variables">QEvent</a></li> </ul> <a name="details"></a> <!-- $$$QDragMoveEvent-description --> <div class="descr"> <h2 id="details">Detailed Description</h2> <p>The <a href="qdragmoveevent.html">QDragMoveEvent</a> class provides an event which is sent while a drag and drop action is in progress.</p> <p>A widget will receive drag move events repeatedly while the drag is within its boundaries, if it accepts <a href="../qtwidgets/qwidget.html#acceptDrops-prop">drop events</a> and <a href="../qtwidgets/qwidget.html#dragEnterEvent">enter events</a>. The widget should examine the event to see what kind of <a href="qdropevent.html#mimeData">data</a> it provides, and call the <a href="qdragmoveevent.html#accept-1">accept</a>() function to accept the drop if appropriate.</p> <p>The rectangle supplied by the <a href="qdragmoveevent.html#answerRect">answerRect</a>() function can be used to restrict drops to certain parts of the widget. For example, we can check whether the rectangle intersects with the geometry of a certain child widget and only call <a href="qdropevent.html#acceptProposedAction">acceptProposedAction()</a> if that is the case.</p> <p>Note that this class inherits most of its functionality from <a href="qdropevent.html">QDropEvent</a>.</p> </div> <p><b>See also </b><a href="qdragenterevent.html">QDragEnterEvent</a>, <a href="qdragleaveevent.html">QDragLeaveEvent</a>, and <a href="qdropevent.html">QDropEvent</a>.</p> <!-- @@@QDragMoveEvent --> <div class="func"> <h2>Member Function Documentation</h2> <!-- $$$QDragMoveEvent[overload1]$$$QDragMoveEventconstQPoint&Qt::DropActionsconstQMimeData*Qt::MouseButtonsQt::KeyboardModifiersType --> <h3 class="fn" id="QDragMoveEvent"><a name="QDragMoveEvent"></a>QDragMoveEvent::<span class="name">QDragMoveEvent</span>(const <span class="type"><a href="../qtcore/qpoint.html">QPoint</a></span> &<i>pos</i>, <span class="type"><a href="../qtcore/qt.html#DropAction-enum">Qt::DropActions</a></span> <i>actions</i>, const <span class="type"><a href="../qtcore/qmimedata.html">QMimeData</a></span> *<i>data</i>, <span class="type"><a href="../qtcore/qt.html#MouseButton-enum">Qt::MouseButtons</a></span> <i>buttons</i>, <span class="type"><a href="../qtcore/qt.html#KeyboardModifier-enum">Qt::KeyboardModifiers</a></span> <i>modifiers</i>, <span class="type"><a href="../qtcore/qevent.html#Type-enum">Type</a></span> <i>type</i> = DragMove)</h3> <p>Creates a <a href="qdragmoveevent.html">QDragMoveEvent</a> of the required <i>type</i> indicating that the mouse is at position <i>pos</i> given within a widget.</p> <p>The mouse and keyboard states are specified by <i>buttons</i> and <i>modifiers</i>, and the <i>actions</i> describe the types of drag and drop operation that are possible. The drag data is passed as MIME-encoded information in <i>data</i>.</p> <p><b>Warning:</b> Do not attempt to create a <a href="qdragmoveevent.html">QDragMoveEvent</a> yourself. These objects rely on Qt's internal state.</p> <!-- @@@QDragMoveEvent --> <!-- $$$~QDragMoveEvent[overload1]$$$~QDragMoveEvent --> <h3 class="fn" id="dtor.QDragMoveEvent"><a name="dtor.QDragMoveEvent"></a>QDragMoveEvent::<span class="name">~QDragMoveEvent</span>()</h3> <p>Destroys the event.</p> <!-- @@@~QDragMoveEvent --> <!-- $$$accept[overload1]$$$acceptconstQRect& --> <h3 class="fn" id="accept"><a name="accept"></a><span class="type">void</span> QDragMoveEvent::<span class="name">accept</span>(const <span class="type"><a href="../qtcore/qrect.html">QRect</a></span> &<i>rectangle</i>)</h3> <p>The same as <a href="qdragmoveevent.html#accept-1">accept</a>(), but also notifies that future moves will also be acceptable if they remain within the <i>rectangle</i> given on the widget. This can improve performance, but may also be ignored by the underlying system.</p> <p>If the rectangle is empty, drag move events will be sent continuously. This is useful if the source is scrolling in a timer event.</p> <!-- @@@accept --> <!-- $$$accept$$$accept --> <h3 class="fn" id="accept-1"><a name="accept-1"></a><span class="type">void</span> QDragMoveEvent::<span class="name">accept</span>()</h3> <p>This is an overloaded function.</p> <p>Calls <a href="../qtcore/qevent.html#accept">QDropEvent::accept</a>().</p> <!-- @@@accept --> <!-- $$$answerRect[overload1]$$$answerRect --> <h3 class="fn" id="answerRect"><a name="answerRect"></a><span class="type"><a href="../qtcore/qrect.html">QRect</a></span> QDragMoveEvent::<span class="name">answerRect</span>() const</h3> <p>Returns the rectangle in the widget where the drop will occur if accepted. You can use this information to restrict drops to certain places on the widget.</p> <!-- @@@answerRect --> <!-- $$$ignore[overload1]$$$ignoreconstQRect& --> <h3 class="fn" id="ignore"><a name="ignore"></a><span class="type">void</span> QDragMoveEvent::<span class="name">ignore</span>(const <span class="type"><a href="../qtcore/qrect.html">QRect</a></span> &<i>rectangle</i>)</h3> <p>The opposite of the accept(const <a href="../qtcore/qrect.html">QRect</a>&) function. Moves within the <i>rectangle</i> are not acceptable, and will be ignored.</p> <!-- @@@ignore --> <!-- $$$ignore$$$ignore --> <h3 class="fn" id="ignore-1"><a name="ignore-1"></a><span class="type">void</span> QDragMoveEvent::<span class="name">ignore</span>()</h3> <p>This is an overloaded function.</p> <p>Calls <a href="../qtcore/qevent.html#ignore">QDropEvent::ignore</a>().</p> <!-- @@@ignore --> </div> </div> </div> </div> </div> </div> <div class="footer"> <p> <acronym title="Copyright">©</acronym> 2017 The Qt Company Ltd. Documentation contributions included herein are the copyrights of their respective owners.<br> The documentation provided herein is licensed under the terms of the <a href="http://www.gnu.org/licenses/fdl.html">GNU Free Documentation License version 1.3</a> as published by the Free Software Foundation.<br> Qt and respective logos are trademarks of The Qt Company Ltd. in Finland and/or other countries worldwide. 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