<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <!-- /home/espenr/tmp/qt-3.3.8-espenr-2499/qt-x11-free-3.3.8/src/kernel/qdragobject.cpp:981 --> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> <title>QImageDrag Class</title> <style type="text/css"><!-- fn { margin-left: 1cm; text-indent: -1cm; } a:link { color: #004faf; text-decoration: none } a:visited { color: #672967; text-decoration: none } body { background: #ffffff; color: black; } --></style> </head> <body> <table border="0" cellpadding="0" cellspacing="0" width="100%"> <tr bgcolor="#E5E5E5"> <td 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="annotated.html"> <font color="#004faf">Annotated</font></a> | <a href="groups.html"> <font color="#004faf">Grouped Classes</font></a> | <a href="functions.html"> <font color="#004faf">Functions</font></a> </td> <td align="right" valign="center"><img src="logo32.png" align="right" width="64" height="32" border="0"></td></tr></table><h1 align=center>QImageDrag Class Reference</h1> <p>The QImageDrag class provides a drag and drop object for transferring images. <a href="#details">More...</a> <p><tt>#include <<a href="qdragobject-h.html">qdragobject.h</a>></tt> <p>Inherits <a href="qdragobject.html">QDragObject</a>. <p><a href="qimagedrag-members.html">List of all member functions.</a> <h2>Public Members</h2> <ul> <li class=fn><a href="#QImageDrag"><b>QImageDrag</b></a> ( QImage image, QWidget * dragSource = 0, const char * name = 0 )</li> <li class=fn><a href="#QImageDrag-2"><b>QImageDrag</b></a> ( QWidget * dragSource = 0, const char * name = 0 )</li> <li class=fn><a href="#~QImageDrag"><b>~QImageDrag</b></a> ()</li> <li class=fn>virtual void <a href="#setImage"><b>setImage</b></a> ( QImage image )</li> </ul> <h2>Static Public Members</h2> <ul> <li class=fn>bool <a href="#canDecode"><b>canDecode</b></a> ( const QMimeSource * e )</li> <li class=fn>bool <a href="#decode"><b>decode</b></a> ( const QMimeSource * e, QImage & img )</li> <li class=fn>bool <a href="#decode-2"><b>decode</b></a> ( const QMimeSource * e, QPixmap & pm )</li> </ul> <hr><a name="details"></a><h2>Detailed Description</h2> <p> The QImageDrag class provides a drag and drop object for transferring images. <p> <p> Images are offered to the receiving application in multiple formats, determined by Qt's <a href="qimage.html#outputFormats">output formats</a>. <p> For more information about drag and drop, see the <a href="qdragobject.html">QDragObject</a> class and the <a href="dnd.html">drag and drop documentation</a>. <p>See also <a href="draganddrop.html">Drag And Drop Classes</a>. <hr><h2>Member Function Documentation</h2> <h3 class=fn><a name="QImageDrag"></a>QImageDrag::QImageDrag ( <a href="qimage.html">QImage</a> image, <a href="qwidget.html">QWidget</a> * dragSource = 0, const char * name = 0 ) </h3> Constructs an image drag object and sets its data to <em>image</em>. <em>dragSource</em> must be the drag source; <em>name</em> is the object name. <h3 class=fn><a name="QImageDrag-2"></a>QImageDrag::QImageDrag ( <a href="qwidget.html">QWidget</a> * dragSource = 0, const char * name = 0 ) </h3> Constructs a default image drag object. <em>dragSource</em> must be the drag source; <em>name</em> is the object name. <h3 class=fn><a name="~QImageDrag"></a>QImageDrag::~QImageDrag () </h3> Destroys the image drag object and frees up all allocated resources. <h3 class=fn>bool <a name="canDecode"></a>QImageDrag::canDecode ( const <a href="qmimesource.html">QMimeSource</a> * e )<tt> [static]</tt> </h3> Returns TRUE if the information in mime source <em>e</em> can be decoded into an image; otherwise returns FALSE. <p> <p>See also <a href="#decode">decode</a>(). <p>Example: <a href="desktop-example.html#x1731">desktop/desktop.cpp</a>. <h3 class=fn>bool <a name="decode"></a>QImageDrag::decode ( const <a href="qmimesource.html">QMimeSource</a> * e, <a href="qimage.html">QImage</a> & img )<tt> [static]</tt> </h3> Attempts to decode the dropped information in mime source <em>e</em> into <em>img</em>. Returns TRUE if successful; otherwise returns FALSE. <p> <p>See also <a href="#canDecode">canDecode</a>(). <p>Example: <a href="desktop-example.html#x1732">desktop/desktop.cpp</a>. <h3 class=fn>bool <a name="decode-2"></a>QImageDrag::decode ( const <a href="qmimesource.html">QMimeSource</a> * e, <a href="qpixmap.html">QPixmap</a> & pm )<tt> [static]</tt> </h3> This is an overloaded member function, provided for convenience. It behaves essentially like the above function. <p> Attempts to decode the dropped information in mime source <em>e</em> into pixmap <em>pm</em>. Returns TRUE if successful; otherwise returns FALSE. <p> This is a convenience function that converts to a <a href="qpixmap.html">QPixmap</a> via a <a href="qimage.html">QImage</a>. <p> <p>See also <a href="#canDecode">canDecode</a>(). <h3 class=fn>void <a name="setImage"></a>QImageDrag::setImage ( <a href="qimage.html">QImage</a> image )<tt> [virtual]</tt> </h3> Sets the image to be dragged to <em>image</em>. You will need to call this if you did not pass the image during construction. <!-- eof --> <hr><p> This file is part of the <a href="index.html">Qt toolkit</a>. Copyright © 1995-2007 <a href="http://www.trolltech.com/">Trolltech</a>. All Rights Reserved.<p><address><hr><div align=center> <table width=100% cellspacing=0 border=0><tr> <td>Copyright © 2007 <a href="troll.html">Trolltech</a><td align=center><a href="trademarks.html">Trademarks</a> <td align=right><div align=right>Qt 3.3.8</div> </table></div></address></body> </html>