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<div class="refentry" lang="en">
<a name="GnomeScanPreviewPlugin"></a><div class="titlepage"></div>
<div class="refnamediv"><table width="100%"><tr>
<td valign="top">
<h2><span class="refentrytitle"><a name="GnomeScanPreviewPlugin.top_of_page"></a>GnomeScanPreviewPlugin</span></h2>
<p>GnomeScanPreviewPlugin</p>
</td>
<td valign="top" align="right"></td>
</tr></table></div>
<div class="refsynopsisdiv">
<a name="GnomeScanPreviewPlugin.synopsis"></a><h2>Synopsis</h2>
<pre class="synopsis">
#define <a class="link" href="GnomeScanPreviewPlugin.html#GS-DEFINE-PREVIEW-PLUGIN:CAPS" title="GS_DEFINE_PREVIEW_PLUGIN()">GS_DEFINE_PREVIEW_PLUGIN</a> (Name, name, options)
<a class="link" href="GnomeScanPreviewPlugin.html#GnomeScanPreviewPlugin-struct" title="GnomeScanPreviewPlugin">GnomeScanPreviewPlugin</a>;
<a class="link" href="GnomeScanPreviewPlugin.html" title="GnomeScanPreviewPlugin">GnomeScanPreviewPlugin</a>* <a class="link" href="GnomeScanPreviewPlugin.html#gnome-scan-preview-plugin" title="gnome_scan_preview_plugin ()">gnome_scan_preview_plugin</a> (<a
href="/usr/share/gtk-doc/html/gobject/gobject-Type-Information.html#GType"
>GType</a> type,
<a class="link" href="GnomeScanPlugin.html" title="GnomeScanPlugin">GnomeScanPlugin</a> *plugin,
<a
href="/usr/share/gtk-doc/html/gobject/gobject-GParamSpec.html#GParamSpec"
>GParamSpec</a> *pspec,
<a
href="/usr/share/gtk-doc/html/gtk/GtkWidget.html"
>GtkWidget</a> *gspa,
<a class="link" href="GnomeScanSettings.html" title="GnomeScanSettings">GnomeScanSettings</a> *settings,
<a
href="/usr/share/gtk-doc/html/gtk/GtkBox.html"
>GtkBox</a> *bbox);
void <a class="link" href="GnomeScanPreviewPlugin.html#gnome-scan-preview-plugin-freeze" title="gnome_scan_preview_plugin_freeze ()">gnome_scan_preview_plugin_freeze</a> (<a class="link" href="GnomeScanPreviewPlugin.html" title="GnomeScanPreviewPlugin">GnomeScanPreviewPlugin</a> *gspp);
void <a class="link" href="GnomeScanPreviewPlugin.html#gnome-scan-preview-plugin-thaw" title="gnome_scan_preview_plugin_thaw ()">gnome_scan_preview_plugin_thaw</a> (<a class="link" href="GnomeScanPreviewPlugin.html" title="GnomeScanPreviewPlugin">GnomeScanPreviewPlugin</a> *gspp);
void <a class="link" href="GnomeScanPreviewPlugin.html#gnome-scan-preview-plugin-changed" title="gnome_scan_preview_plugin_changed ()">gnome_scan_preview_plugin_changed</a> (<a class="link" href="GnomeScanPreviewPlugin.html" title="GnomeScanPreviewPlugin">GnomeScanPreviewPlugin</a> *gspp);
void <a class="link" href="GnomeScanPreviewPlugin.html#gnome-scan-preview-plugin-draw-buffer" title="gnome_scan_preview_plugin_draw_buffer ()">gnome_scan_preview_plugin_draw_buffer</a>
(<a class="link" href="GnomeScanPreviewPlugin.html" title="GnomeScanPreviewPlugin">GnomeScanPreviewPlugin</a> *gspp,
<a
href="/usr/share/gtk-doc/html/gtk/GtkWidget.html"
>GtkWidget</a> *gspa,
<a
href="/usr/share/gtk-doc/html/cairo/cairo-context.html#cairo-t"
>cairo_t</a> *cr);
void <a class="link" href="GnomeScanPreviewPlugin.html#gnome-scan-preview-plugin-destroy" title="gnome_scan_preview_plugin_destroy ()">gnome_scan_preview_plugin_destroy</a> (<a class="link" href="GnomeScanPreviewPlugin.html" title="GnomeScanPreviewPlugin">GnomeScanPreviewPlugin</a> *gspp);
</pre>
</div>
<div class="refsect1" lang="en">
<a name="GnomeScanPreviewPlugin.object-hierarchy"></a><h2>Object Hierarchy</h2>
<pre class="synopsis">
GnomeScanPreviewPlugin
+----GnomeScanPreviewPluginRotation
+----GnomeScanPreviewPluginArea
</pre>
</div>
<div class="refsect1" lang="en">
<a name="GnomeScanPreviewPlugin.description"></a><h2>Description</h2>
<p>
</p>
</div>
<div class="refsect1" lang="en">
<a name="GnomeScanPreviewPlugin.details"></a><h2>Details</h2>
<div class="refsect2" lang="en">
<a name="GS-DEFINE-PREVIEW-PLUGIN:CAPS"></a><h3>GS_DEFINE_PREVIEW_PLUGIN()</h3>
<pre class="programlisting">#define GS_DEFINE_PREVIEW_PLUGIN(Name, name, options)</pre>
<p>
Generate glib boiler plate code for creatin a new preview plugin.</p>
<p>
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>Name</code></em> :</span></p></td>
<td> Class name
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>name</code></em> :</span></p></td>
<td> function prefix
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>options</code></em> :</span></p></td>
<td> options to watch.
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" lang="en">
<a name="GnomeScanPreviewPlugin-struct"></a><h3>GnomeScanPreviewPlugin</h3>
<pre class="programlisting">typedef struct {
GnomeScanPlugin* plugin;
GtkWidget* preview_area;
GnomeScanSettings* settings;
GParamSpec* pspec;
gulong settings_changed;
gulong preview_changed;
gboolean frozen;
} GnomeScanPreviewPlugin;
</pre>
<p>
</p>
<p>
</p>
</div>
<hr>
<div class="refsect2" lang="en">
<a name="gnome-scan-preview-plugin"></a><h3>gnome_scan_preview_plugin ()</h3>
<pre class="programlisting"><a class="link" href="GnomeScanPreviewPlugin.html" title="GnomeScanPreviewPlugin">GnomeScanPreviewPlugin</a>* gnome_scan_preview_plugin (<a
href="/usr/share/gtk-doc/html/gobject/gobject-Type-Information.html#GType"
>GType</a> type,
<a class="link" href="GnomeScanPlugin.html" title="GnomeScanPlugin">GnomeScanPlugin</a> *plugin,
<a
href="/usr/share/gtk-doc/html/gobject/gobject-GParamSpec.html#GParamSpec"
>GParamSpec</a> *pspec,
<a
href="/usr/share/gtk-doc/html/gtk/GtkWidget.html"
>GtkWidget</a> *gspa,
<a class="link" href="GnomeScanSettings.html" title="GnomeScanSettings">GnomeScanSettings</a> *settings,
<a
href="/usr/share/gtk-doc/html/gtk/GtkBox.html"
>GtkBox</a> *bbox);</pre>
<p>
</p>
<p>
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>type</code></em> :</span></p></td>
<td> subtype of <a class="link" href="GnomeScanPreviewPlugin.html" title="GnomeScanPreviewPlugin"><span class="type">GnomeScanPreviewPlugin</span></a> to instanciate
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>plugin</code></em> :</span></p></td>
<td>
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>pspec</code></em> :</span></p></td>
<td> the <span class="type">GSParamSpec</span> to manage
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>gspa</code></em> :</span></p></td>
<td> the <span class="type">GnomeScanPreviewArea</span> to extend
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>settings</code></em> :</span></p></td>
<td> the <a class="link" href="GnomeScanSettings.html" title="GnomeScanSettings"><span class="type">GnomeScanSettings</span></a> where to store value
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>bbox</code></em> :</span></p></td>
<td>
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td> a <a class="link" href="GnomeScanPreviewPlugin.html" title="GnomeScanPreviewPlugin"><span class="type">GnomeScanPreviewPlugin</span></a>
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" lang="en">
<a name="gnome-scan-preview-plugin-freeze"></a><h3>gnome_scan_preview_plugin_freeze ()</h3>
<pre class="programlisting">void gnome_scan_preview_plugin_freeze (<a class="link" href="GnomeScanPreviewPlugin.html" title="GnomeScanPreviewPlugin">GnomeScanPreviewPlugin</a> *gspp);</pre>
<p>
Freeze the plugin so that it doesn't react on value changes.</p>
<p>
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody><tr>
<td><p><span class="term"><em class="parameter"><code>gspp</code></em> :</span></p></td>
<td> a <a class="link" href="GnomeScanPreviewPlugin.html" title="GnomeScanPreviewPlugin"><span class="type">GnomeScanPreviewPlugin</span></a>
</td>
</tr></tbody>
</table></div>
</div>
<hr>
<div class="refsect2" lang="en">
<a name="gnome-scan-preview-plugin-thaw"></a><h3>gnome_scan_preview_plugin_thaw ()</h3>
<pre class="programlisting">void gnome_scan_preview_plugin_thaw (<a class="link" href="GnomeScanPreviewPlugin.html" title="GnomeScanPreviewPlugin">GnomeScanPreviewPlugin</a> *gspp);</pre>
<p>
Thaw the plugin so that it react on value changes.</p>
<p>
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody><tr>
<td><p><span class="term"><em class="parameter"><code>gspp</code></em> :</span></p></td>
<td> a <a class="link" href="GnomeScanPreviewPlugin.html" title="GnomeScanPreviewPlugin"><span class="type">GnomeScanPreviewPlugin</span></a>
</td>
</tr></tbody>
</table></div>
</div>
<hr>
<div class="refsect2" lang="en">
<a name="gnome-scan-preview-plugin-changed"></a><h3>gnome_scan_preview_plugin_changed ()</h3>
<pre class="programlisting">void gnome_scan_preview_plugin_changed (<a class="link" href="GnomeScanPreviewPlugin.html" title="GnomeScanPreviewPlugin">GnomeScanPreviewPlugin</a> *gspp);</pre>
<p>
To be called when the preview has been changed.</p>
<p>
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody><tr>
<td><p><span class="term"><em class="parameter"><code>gspp</code></em> :</span></p></td>
<td> a <a class="link" href="GnomeScanPreviewPlugin.html" title="GnomeScanPreviewPlugin"><span class="type">GnomeScanPreviewPlugin</span></a>
</td>
</tr></tbody>
</table></div>
</div>
<hr>
<div class="refsect2" lang="en">
<a name="gnome-scan-preview-plugin-draw-buffer"></a><h3>gnome_scan_preview_plugin_draw_buffer ()</h3>
<pre class="programlisting">void gnome_scan_preview_plugin_draw_buffer
(<a class="link" href="GnomeScanPreviewPlugin.html" title="GnomeScanPreviewPlugin">GnomeScanPreviewPlugin</a> *gspp,
<a
href="/usr/share/gtk-doc/html/gtk/GtkWidget.html"
>GtkWidget</a> *gspa,
<a
href="/usr/share/gtk-doc/html/cairo/cairo-context.html#cairo-t"
>cairo_t</a> *cr);</pre>
<p>
For use by <span class="type">GnomeScanPreviewArea</span></p>
<p>
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>gspp</code></em> :</span></p></td>
<td> a <a class="link" href="GnomeScanPreviewPlugin.html" title="GnomeScanPreviewPlugin"><span class="type">GnomeScanPreviewPlugin</span></a>
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>gspa</code></em> :</span></p></td>
<td> a <span class="type">GnomeScaPreviewArea</span>
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>cr</code></em> :</span></p></td>
<td> a cairo context
</td>
</tr>
</tbody>
</table></div>
<p class="stability">Stability Level: Private</p>
</div>
<hr>
<div class="refsect2" lang="en">
<a name="gnome-scan-preview-plugin-destroy"></a><h3>gnome_scan_preview_plugin_destroy ()</h3>
<pre class="programlisting">void gnome_scan_preview_plugin_destroy (<a class="link" href="GnomeScanPreviewPlugin.html" title="GnomeScanPreviewPlugin">GnomeScanPreviewPlugin</a> *gspp);</pre>
<p>
</p>
<p>
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody><tr>
<td><p><span class="term"><em class="parameter"><code>gspp</code></em> :</span></p></td>
<td> the dying <a class="link" href="GnomeScanPreviewPlugin.html" title="GnomeScanPreviewPlugin"><span class="type">GnomeScanPreviewPlugin</span></a>
</td>
</tr></tbody>
</table></div>
</div>
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