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    </script><title>Chapter 19. Drag and Drop</title>
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<tr><th colspan="3" align="center">Chapter 19. Drag and Drop</th></tr>
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<div class="chapter">
<div class="titlepage"><div><div><h1 class="title">
<a name="chapter-draganddrop"></a>Chapter 19. Drag and Drop</h1></div></div></div>
<div class="toc">
<p><b>Table of Contents</b></p>
<ul class="toc">
<li><span class="section"><a href="chapter-draganddrop.html#sec-dnd-sources-targets">Sources and Targets</a></span></li>
<li><span class="section"><a href="sec-dnd-methods.html">Methods</a></span></li>
<li><span class="section"><a href="sec-dnd-signals.html">Signals</a></span></li>
<li><span class="section"><a href="sec-dnd-example.html">Example</a></span></li>
</ul>
</div>

<p>
The <code class="classname">Gtk::DragSource</code> and <code class="classname">Gtk::DropTarget</code>
event controllers have methods and signals which are used for Drag and Drop.
</p>

<div class="section">
<div class="titlepage"><div><div><h2 class="title" style="clear: both">
<a name="sec-dnd-sources-targets"></a>Sources and Targets</h2></div></div></div>

<p>
Things are dragged from <code class="literal">sources</code> to be dropped on
<code class="literal">targets</code>. Each source and target has information
about the data formats that it can send or receive, provided by
<code class="classname">Gdk::ContentFormats</code>. A drop target will only
accept a dragged item if they both share a compatible format. Appropriate
signals will then be emitted, telling the signal handlers which format was used.
</p>
<p>
<code class="classname">Gdk::ContentFormats</code> objects contain information about
available <span class="type">GType</span>s and mime types (media types).
</p>

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