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| 2 | <!-- /home/espenr/tmp/qt-3.3.8-espenr-2499/qt-x11-free-3.3.8/src/kernel/qdragobject.cpp:981 -->
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| 6 | <title>QImageDrag Class</title>
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| 20 | <font color="#004faf">Home</font></a>
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| 31 | </td>
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| 32 | <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>
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| 33 |
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| 34 | <p>The QImageDrag class provides a drag and drop object for
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| 35 | transferring images.
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| 36 | <a href="#details">More...</a>
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| 37 | <p><tt>#include <<a href="qdragobject-h.html">qdragobject.h</a>></tt>
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| 38 | <p>Inherits <a href="qdragobject.html">QDragObject</a>.
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| 39 | <p><a href="qimagedrag-members.html">List of all member functions.</a>
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| 40 | <h2>Public Members</h2>
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| 41 | <ul>
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| 42 | <li class=fn><a href="#QImageDrag"><b>QImageDrag</b></a> ( QImage image, QWidget * dragSource = 0, const char * name = 0 )</li>
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| 43 | <li class=fn><a href="#QImageDrag-2"><b>QImageDrag</b></a> ( QWidget * dragSource = 0, const char * name = 0 )</li>
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| 44 | <li class=fn><a href="#~QImageDrag"><b>~QImageDrag</b></a> ()</li>
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| 45 | <li class=fn>virtual void <a href="#setImage"><b>setImage</b></a> ( QImage image )</li>
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| 46 | </ul>
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| 47 | <h2>Static Public Members</h2>
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| 48 | <ul>
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| 49 | <li class=fn>bool <a href="#canDecode"><b>canDecode</b></a> ( const QMimeSource * e )</li>
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| 50 | <li class=fn>bool <a href="#decode"><b>decode</b></a> ( const QMimeSource * e, QImage & img )</li>
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| 51 | <li class=fn>bool <a href="#decode-2"><b>decode</b></a> ( const QMimeSource * e, QPixmap & pm )</li>
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| 52 | </ul>
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| 53 | <hr><a name="details"></a><h2>Detailed Description</h2>
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| 54 |
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| 55 |
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| 56 | <p> The QImageDrag class provides a drag and drop object for
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| 57 | transferring images.
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| 58 | <p>
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| 59 | <p> Images are offered to the receiving application in multiple
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| 60 | formats, determined by Qt's <a href="qimage.html#outputFormats">output
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| 61 | formats</a>.
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| 62 | <p> For more information about drag and drop, see the <a href="qdragobject.html">QDragObject</a>
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| 63 | class and the <a href="dnd.html">drag and drop documentation</a>.
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| 64 | <p>See also <a href="draganddrop.html">Drag And Drop Classes</a>.
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| 65 |
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| 66 | <hr><h2>Member Function Documentation</h2>
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| 67 | <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 )
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| 68 | </h3>
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| 69 | 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.
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| 70 |
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| 71 | <h3 class=fn><a name="QImageDrag-2"></a>QImageDrag::QImageDrag ( <a href="qwidget.html">QWidget</a> * dragSource = 0, const char * name = 0 )
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| 72 | </h3>
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| 73 | Constructs a default image drag object. <em>dragSource</em> must be the
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| 74 | drag source; <em>name</em> is the object name.
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| 75 |
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| 76 | <h3 class=fn><a name="~QImageDrag"></a>QImageDrag::~QImageDrag ()
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| 77 | </h3>
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| 78 | Destroys the image drag object and frees up all allocated
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| 79 | resources.
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| 80 |
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| 81 | <h3 class=fn>bool <a name="canDecode"></a>QImageDrag::canDecode ( const <a href="qmimesource.html">QMimeSource</a> * e )<tt> [static]</tt>
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| 82 | </h3>
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| 83 | Returns TRUE if the information in mime source <em>e</em> can be decoded
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| 84 | into an image; otherwise returns FALSE.
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| 85 | <p> <p>See also <a href="#decode">decode</a>().
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| 86 |
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| 87 | <p>Example: <a href="desktop-example.html#x1731">desktop/desktop.cpp</a>.
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| 88 | <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>
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| 89 | </h3>
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| 90 | Attempts to decode the dropped information in mime source <em>e</em>
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| 91 | into <em>img</em>. Returns TRUE if successful; otherwise returns FALSE.
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| 92 | <p> <p>See also <a href="#canDecode">canDecode</a>().
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| 93 |
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| 94 | <p>Example: <a href="desktop-example.html#x1732">desktop/desktop.cpp</a>.
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| 95 | <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>
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| 96 | </h3>
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| 97 | This is an overloaded member function, provided for convenience. It behaves essentially like the above function.
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| 98 | <p> Attempts to decode the dropped information in mime source <em>e</em>
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| 99 | into pixmap <em>pm</em>. Returns TRUE if successful; otherwise returns
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| 100 | FALSE.
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| 101 | <p> This is a convenience function that converts to a <a href="qpixmap.html">QPixmap</a> via a
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| 102 | <a href="qimage.html">QImage</a>.
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| 103 | <p> <p>See also <a href="#canDecode">canDecode</a>().
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| 104 |
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| 105 | <h3 class=fn>void <a name="setImage"></a>QImageDrag::setImage ( <a href="qimage.html">QImage</a> image )<tt> [virtual]</tt>
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| 106 | </h3>
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| 107 | Sets the image to be dragged to <em>image</em>. You will need to call
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| 108 | this if you did not pass the image during construction.
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| 109 |
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| 110 | <!-- eof -->
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| 111 | <hr><p>
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| 112 | This file is part of the <a href="index.html">Qt toolkit</a>.
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| 113 | Copyright © 1995-2007
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| 114 | <a href="http://www.trolltech.com/">Trolltech</a>. All Rights Reserved.<p><address><hr><div align=center>
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| 116 | <td>Copyright © 2007
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| 117 | <a href="troll.html">Trolltech</a><td align=center><a href="trademarks.html">Trademarks</a>
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| 118 | <td align=right><div align=right>Qt 3.3.8</div>
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| 119 | </table></div></address></body>
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