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121 lines
6.0 KiB
121 lines
6.0 KiB
13 years ago
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
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<!-- /home/espenr/tmp/qt-3.3.8-espenr-2499/qt-x11-free-3.3.8/src/kernel/qdragobject.cpp:981 -->
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<head>
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<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
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<title>TQImageDrag Class</title>
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<font color="#004faf">Home</font></a>
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<font color="#004faf">All Classes</font></a>
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<td align="right" valign="center"><img src="logo32.png" align="right" width="64" height="32" border="0"></td></tr></table><h1 align=center>TQImageDrag Class Reference</h1>
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<p>The TQImageDrag class provides a drag and drop object for
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transferring images.
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<a href="#details">More...</a>
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<p><tt>#include <<a href="qdragobject-h.html">ntqdragobject.h</a>></tt>
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<p>Inherits <a href="ntqdragobject.html">TQDragObject</a>.
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<p><a href="tqimagedrag-members.html">List of all member functions.</a>
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<h2>Public Members</h2>
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<ul>
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<li class=fn><a href="#TQImageDrag"><b>TQImageDrag</b></a> ( TQImage image, TQWidget * dragSource = 0, const char * name = 0 )</li>
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<li class=fn><a href="#TQImageDrag-2"><b>TQImageDrag</b></a> ( TQWidget * dragSource = 0, const char * name = 0 )</li>
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<li class=fn><a href="#~TQImageDrag"><b>~TQImageDrag</b></a> ()</li>
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<li class=fn>virtual void <a href="#setImage"><b>setImage</b></a> ( TQImage image )</li>
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</ul>
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<h2>Static Public Members</h2>
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<ul>
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<li class=fn>bool <a href="#canDecode"><b>canDecode</b></a> ( const TQMimeSource * e )</li>
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<li class=fn>bool <a href="#decode"><b>decode</b></a> ( const TQMimeSource * e, TQImage & img )</li>
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<li class=fn>bool <a href="#decode-2"><b>decode</b></a> ( const TQMimeSource * e, TQPixmap & pm )</li>
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</ul>
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<hr><a name="details"></a><h2>Detailed Description</h2>
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<p> The TQImageDrag class provides a drag and drop object for
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transferring images.
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<p>
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<p> Images are offered to the receiving application in multiple
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formats, determined by TQt's <a href="tqimage.html#outputFormats">output
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formats</a>.
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<p> For more information about drag and drop, see the <a href="ntqdragobject.html">TQDragObject</a>
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class and the <a href="dnd.html">drag and drop documentation</a>.
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<p>See also <a href="draganddrop.html">Drag And Drop Classes</a>.
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<hr><h2>Member Function Documentation</h2>
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<h3 class=fn><a name="TQImageDrag"></a>TQImageDrag::TQImageDrag ( <a href="tqimage.html">TQImage</a> image, <a href="tqwidget.html">TQWidget</a> * dragSource = 0, const char * name = 0 )
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</h3>
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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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<h3 class=fn><a name="TQImageDrag-2"></a>TQImageDrag::TQImageDrag ( <a href="tqwidget.html">TQWidget</a> * dragSource = 0, const char * name = 0 )
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</h3>
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Constructs a default image drag object. <em>dragSource</em> must be the
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drag source; <em>name</em> is the object name.
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<h3 class=fn><a name="~TQImageDrag"></a>TQImageDrag::~TQImageDrag ()
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</h3>
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Destroys the image drag object and frees up all allocated
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resources.
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<h3 class=fn>bool <a name="canDecode"></a>TQImageDrag::canDecode ( const <a href="qmimesource.html">TQMimeSource</a> * e )<tt> [static]</tt>
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</h3>
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Returns TRUE if the information in mime source <em>e</em> can be decoded
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into an image; otherwise returns FALSE.
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<p> <p>See also <a href="#decode">decode</a>().
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<p>Example: <a href="desktop-example.html#x1731">desktop/desktop.cpp</a>.
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<h3 class=fn>bool <a name="decode"></a>TQImageDrag::decode ( const <a href="qmimesource.html">TQMimeSource</a> * e, <a href="tqimage.html">TQImage</a> & img )<tt> [static]</tt>
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</h3>
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Attempts to decode the dropped information in mime source <em>e</em>
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into <em>img</em>. Returns TRUE if successful; otherwise returns FALSE.
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<p> <p>See also <a href="#canDecode">canDecode</a>().
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<p>Example: <a href="desktop-example.html#x1732">desktop/desktop.cpp</a>.
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<h3 class=fn>bool <a name="decode-2"></a>TQImageDrag::decode ( const <a href="qmimesource.html">TQMimeSource</a> * e, <a href="ntqpixmap.html">TQPixmap</a> & pm )<tt> [static]</tt>
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</h3>
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This is an overloaded member function, provided for convenience. It behaves essentially like the above function.
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<p> Attempts to decode the dropped information in mime source <em>e</em>
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into pixmap <em>pm</em>. Returns TRUE if successful; otherwise returns
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FALSE.
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<p> This is a convenience function that converts to a <a href="ntqpixmap.html">TQPixmap</a> via a
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<a href="tqimage.html">TQImage</a>.
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<p> <p>See also <a href="#canDecode">canDecode</a>().
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<h3 class=fn>void <a name="setImage"></a>TQImageDrag::setImage ( <a href="tqimage.html">TQImage</a> image )<tt> [virtual]</tt>
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</h3>
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Sets the image to be dragged to <em>image</em>. You will need to call
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this if you did not pass the image during construction.
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<!-- eof -->
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<hr><p>
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This file is part of the <a href="index.html">TQt toolkit</a>.
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Copyright © 1995-2007
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<a href="http://www.trolltech.com/">Trolltech</a>. All Rights Reserved.<p><address><hr><div align=center>
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<table width=100% cellspacing=0 border=0><tr>
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<td>Copyright © 2007
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<a href="troll.html">Trolltech</a><td align=center><a href="trademarks.html">Trademarks</a>
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<td align=right><div align=right>TQt 3.3.8</div>
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</table></div></address></body>
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</html>
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