<?xml version="1.0" encoding="iso-8859-1"?> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "DTD/xhtml1-strict.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en"> <!-- qevent.cpp --> <head> <title>Qt 4.6: QDragMoveEvent Class Reference</title> <link href="classic.css" rel="stylesheet" type="text/css" /> </head> <body> <a name="//apple_ref/cpp/cl//QDragMoveEvent"></a> <table border="0" cellpadding="0" cellspacing="0" width="100%"> <tr> <td align="left" valign="top" width="32"><a href="http://qt.nokia.com/"><img src="images/qt-logo.png" align="left" border="0" /></a></td> <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="functions.html"><font color="#004faf">All Functions</font></a> · <a href="overviews.html"><font color="#004faf">Overviews</font></a></td></tr></table><h1 class="title">QDragMoveEvent Class Reference<br /><span class="small-subtitle">[<a href="qtgui.html">QtGui</a> module]</span> </h1> <p>The QDragMoveEvent class provides an event which is sent while a drag and drop action is in progress. <a href="#details">More...</a></p> <pre> #include <QDragMoveEvent></pre><p>Inherits <a href="qdropevent.html">QDropEvent</a>.</p> <p>Inherited by <a href="qdragenterevent.html">QDragEnterEvent</a>.</p> <ul> <li><a href="qdragmoveevent-members.html">List of all members, including inherited members</a></li> <li><a href="qdragmoveevent-qt3.html">Qt 3 support members</a></li> </ul> <hr /> <a name="public-functions"></a> <h2>Public Functions</h2> <table class="alignedsummary" border="0" cellpadding="0" cellspacing="0" width="100%"> <tr><td class="memItemLeft" align="right" valign="top"></td><td class="memItemRight" valign="bottom"><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" align="right" valign="top"></td><td class="memItemRight" valign="bottom"><b><a href="qdragmoveevent.html#dtor.QDragMoveEvent">~QDragMoveEvent</a></b> ()</td></tr> <tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><b><a href="qdragmoveevent.html#accept">accept</a></b> ( const QRect & <i>rectangle</i> )</td></tr> <tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><b><a href="qdragmoveevent.html#accept-3">accept</a></b> ()</td></tr> <tr><td class="memItemLeft" align="right" valign="top">QRect </td><td class="memItemRight" valign="bottom"><b><a href="qdragmoveevent.html#answerRect">answerRect</a></b> () const</td></tr> <tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><b><a href="qdragmoveevent.html#ignore">ignore</a></b> ( const QRect & <i>rectangle</i> )</td></tr> <tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><b><a href="qdragmoveevent.html#ignore-2">ignore</a></b> ()</td></tr> </table> <ul> <li><div bar="2" class="fn"></div>10 public functions inherited from <a href="qdropevent.html#public-functions">QDropEvent</a></li> <li><div bar="2" class="fn"></div>6 public functions inherited from <a href="qevent.html#public-functions">QEvent</a></li> <li><div bar="2" class="fn"></div>3 public functions inherited from <a href="qmimesource.html#public-functions">QMimeSource</a></li> </ul> <h3>Additional Inherited Members</h3> <ul> <li><div class="fn"></div>1 property inherited from <a href="qevent.html#properties">QEvent</a></li> <li><div class="fn"></div>1 static public member inherited from <a href="qevent.html#static-public-members">QEvent</a></li> </ul> <a name="details"></a> <hr /> <h2>Detailed Description</h2> <p>The QDragMoveEvent 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="qwidget.html#acceptDrops-prop">drop events</a> and <a href="qwidget.html#dragEnterEvent">enter events</a>. The widget should examine the event to see what kind of data it <a href="qdropevent-qt3.html#provides" class="compat">provides</a>, and call the <a href="qdragmoveevent.html#accept">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> <p>See also <a href="qdragenterevent.html">QDragEnterEvent</a>, <a href="qdragleaveevent.html">QDragLeaveEvent</a>, and <a href="qdropevent.html">QDropEvent</a>.</p> <hr /> <h2>Member Function Documentation</h2> <a name="//apple_ref/cpp/instm/QDragMoveEvent/QDragMoveEvent"></a> <h3 class="fn"><a name="QDragMoveEvent"></a>QDragMoveEvent::QDragMoveEvent ( const <a href="qpoint.html">QPoint</a> & <i>pos</i>, <a href="qt.html#DropAction-enum">Qt::DropActions</a> <i>actions</i>, const <a href="qmimedata.html">QMimeData</a> * <i>data</i>, <a href="qt.html#MouseButton-enum">Qt::MouseButtons</a> <i>buttons</i>, <a href="qt.html#KeyboardModifier-enum">Qt::KeyboardModifiers</a> <i>modifiers</i>, <a href="qevent.html#Type-enum">Type</a> <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> <a name="//apple_ref/cpp/instm/QDragMoveEvent/~QDragMoveEvent"></a> <h3 class="fn"><a name="dtor.QDragMoveEvent"></a>QDragMoveEvent::~QDragMoveEvent ()</h3> <p>Destroys the event.</p> <a name="//apple_ref/cpp/instm/QDragMoveEvent/accept"></a> <h3 class="fn"><a name="accept"></a>void QDragMoveEvent::accept ( const <a href="qrect.html">QRect</a> & <i>rectangle</i> )</h3> <p>The same as accept(), 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> <h3 class="fn"><a name="accept-3"></a>void QDragMoveEvent::accept ()</h3> <p>This is an overloaded function.</p> <p>Calls QDropEvent::accept().</p> <a name="//apple_ref/cpp/instm/QDragMoveEvent/answerRect"></a> <h3 class="fn"><a name="answerRect"></a><a href="qrect.html">QRect</a> QDragMoveEvent::answerRect () 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> <a name="//apple_ref/cpp/instm/QDragMoveEvent/ignore"></a> <h3 class="fn"><a name="ignore"></a>void QDragMoveEvent::ignore ( const <a href="qrect.html">QRect</a> & <i>rectangle</i> )</h3> <p>The opposite of the accept(const <a href="qrect.html">QRect</a>&) function. Moves within the <i>rectangle</i> are not acceptable, and will be ignored.</p> <h3 class="fn"><a name="ignore-2"></a>void QDragMoveEvent::ignore ()</h3> <p>This is an overloaded function.</p> <p>Calls <a href="qevent.html#ignore">QDropEvent::ignore</a>().</p> <p /><address><hr /><div align="center"> <table width="100%" cellspacing="0" border="0"><tr class="address"> <td width="40%" align="left">Copyright © 2010 Nokia Corporation and/or its subsidiary(-ies)</td> <td width="20%" align="center"><a href="trademarks.html">Trademarks</a></td> <td width="40%" align="right"><div align="right">Qt 4.6.3</div></td> </tr></table></div></address></body> </html>