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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
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<title>gimpplugin: GIMP Library Reference Manual</title>
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<a href="#" class="shortcut">Top</a><span id="nav_description">  <span class="dim">|</span> 
                  <a href="#libgimp-gimpplugin.description" class="shortcut">Description</a></span>
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<div class="refentry">
<a name="libgimp-gimpplugin"></a><div class="titlepage"></div>
<div class="refnamediv"><table width="100%"><tr>
<td valign="top">
<h2><span class="refentrytitle"><a name="libgimp-gimpplugin.top_of_page"></a>gimpplugin</span></h2>
<p>gimpplugin — Functions useful for plug-ins, e.g. registration and progress indicators.</p>
</td>
<td class="gallery_image" valign="top" align="right"></td>
</tr></table></div>
<div class="refsect1">
<a name="libgimp-gimpplugin.functions"></a><h2>Functions</h2>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="functions_proto_type">
<col class="functions_proto_name">
</colgroup>
<tbody>
<tr>
<td class="function_type">
<span class="returnvalue">gboolean</span>
</td>
<td class="function_name">
<a class="link" href="libgimp-gimpplugin.html#gimp-plugin-domain-register" title="gimp_plugin_domain_register ()">gimp_plugin_domain_register</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">gboolean</span>
</td>
<td class="function_name">
<a class="link" href="libgimp-gimpplugin.html#gimp-plugin-help-register" title="gimp_plugin_help_register ()">gimp_plugin_help_register</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">gboolean</span>
</td>
<td class="function_name">
<a class="link" href="libgimp-gimpplugin.html#gimp-plugin-icon-register" title="gimp_plugin_icon_register ()">gimp_plugin_icon_register</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">gboolean</span>
</td>
<td class="function_name">
<a class="link" href="libgimp-gimpplugin.html#gimp-plugin-menu-register" title="gimp_plugin_menu_register ()">gimp_plugin_menu_register</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">gboolean</span>
</td>
<td class="function_name">
<a class="link" href="libgimp-gimpplugin.html#gimp-plugin-menu-branch-register" title="gimp_plugin_menu_branch_register ()">gimp_plugin_menu_branch_register</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">gboolean</span>
</td>
<td class="function_name">
<a class="link" href="libgimp-gimpplugin.html#gimp-plugin-set-pdb-error-handler" title="gimp_plugin_set_pdb_error_handler ()">gimp_plugin_set_pdb_error_handler</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a href="../html/libgimpbase-gimpbaseenums.html#GimpPDBErrorHandler"><span class="returnvalue">GimpPDBErrorHandler</span></a>
</td>
<td class="function_name">
<a class="link" href="libgimp-gimpplugin.html#gimp-plugin-get-pdb-error-handler" title="gimp_plugin_get_pdb_error_handler ()">gimp_plugin_get_pdb_error_handler</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">gboolean</span>
</td>
<td class="function_name">
<a class="link" href="libgimp-gimpplugin.html#gimp-plugin-enable-precision" title="gimp_plugin_enable_precision ()">gimp_plugin_enable_precision</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">gboolean</span>
</td>
<td class="function_name">
<a class="link" href="libgimp-gimpplugin.html#gimp-plugin-precision-enabled" title="gimp_plugin_precision_enabled ()">gimp_plugin_precision_enabled</a> <span class="c_punctuation">()</span>
</td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect1">
<a name="libgimp-gimpplugin.description"></a><h2>Description</h2>
<p>Functions useful for plug-ins, e.g. registration and progress
indicators.</p>
</div>
<div class="refsect1">
<a name="libgimp-gimpplugin.functions_details"></a><h2>Functions</h2>
<div class="refsect2">
<a name="gimp-plugin-domain-register"></a><h3>gimp_plugin_domain_register ()</h3>
<pre class="programlisting"><span class="returnvalue">gboolean</span>
gimp_plugin_domain_register (<em class="parameter"><code>const <span class="type">gchar</span> *domain_name</code></em>,
                             <em class="parameter"><code>const <span class="type">gchar</span> *domain_path</code></em>);</pre>
<p>Registers a textdomain for localisation.</p>
<p>This procedure adds a textdomain to the list of domains Gimp
searches for strings when translating its menu entries. There is no
need to call this function for plug-ins that have their strings
included in the 'gimp-std-plugins' domain as that is used by
default. If the compiled message catalog is not in the standard
location, you may specify an absolute path to another location. This
procedure can only be called in the query function of a plug-in and
it has to be called before any procedure is installed.</p>
<div class="refsect3">
<a name="gimp-plugin-domain-register.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>domain_name</p></td>
<td class="parameter_description"><p>The name of the textdomain (must be unique).</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>domain_path</p></td>
<td class="parameter_description"><p>The absolute path to the compiled message catalog (may be NULL).</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect3">
<a name="gimp-plugin-domain-register.returns"></a><h4>Returns</h4>
<p> TRUE on success.</p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gimp-plugin-help-register"></a><h3>gimp_plugin_help_register ()</h3>
<pre class="programlisting"><span class="returnvalue">gboolean</span>
gimp_plugin_help_register (<em class="parameter"><code>const <span class="type">gchar</span> *domain_name</code></em>,
                           <em class="parameter"><code>const <span class="type">gchar</span> *domain_uri</code></em>);</pre>
<p>Register a help path for a plug-in.</p>
<p>This procedure registers user documentation for the calling plug-in
with the GIMP help system. The domain_uri parameter points to the
root directory where the plug-in help is installed. For each
supported language there should be a file called 'gimp-help.xml'
that maps the help IDs to the actual help files.</p>
<div class="refsect3">
<a name="gimp-plugin-help-register.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>domain_name</p></td>
<td class="parameter_description"><p>The XML namespace of the plug-in's help pages.</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>domain_uri</p></td>
<td class="parameter_description"><p>The root URI of the plug-in's help pages.</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect3">
<a name="gimp-plugin-help-register.returns"></a><h4>Returns</h4>
<p> TRUE on success.</p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gimp-plugin-icon-register"></a><h3>gimp_plugin_icon_register ()</h3>
<pre class="programlisting"><span class="returnvalue">gboolean</span>
gimp_plugin_icon_register (<em class="parameter"><code>const <span class="type">gchar</span> *procedure_name</code></em>,
                           <em class="parameter"><code><a href="../html/libgimpbase-gimpbaseenums.html#GimpIconType"><span class="type">GimpIconType</span></a> icon_type</code></em>,
                           <em class="parameter"><code>const <span class="type">guint8</span> *icon_data</code></em>);</pre>
</div>
<hr>
<div class="refsect2">
<a name="gimp-plugin-menu-register"></a><h3>gimp_plugin_menu_register ()</h3>
<pre class="programlisting"><span class="returnvalue">gboolean</span>
gimp_plugin_menu_register (<em class="parameter"><code>const <span class="type">gchar</span> *procedure_name</code></em>,
                           <em class="parameter"><code>const <span class="type">gchar</span> *menu_path</code></em>);</pre>
<p>Register an additional menu path for a plug-in procedure.</p>
<p>This procedure installs an additional menu entry for the given
procedure.</p>
<div class="refsect3">
<a name="gimp-plugin-menu-register.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>procedure_name</p></td>
<td class="parameter_description"><p>The procedure for which to install the menu path.</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>menu_path</p></td>
<td class="parameter_description"><p>The procedure's additional menu path.</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect3">
<a name="gimp-plugin-menu-register.returns"></a><h4>Returns</h4>
<p> TRUE on success.</p>
</div>
<p class="since">Since: <a class="link" href="api-index-2-2.html#api-index-2.2">2.2</a></p>
</div>
<hr>
<div class="refsect2">
<a name="gimp-plugin-menu-branch-register"></a><h3>gimp_plugin_menu_branch_register ()</h3>
<pre class="programlisting"><span class="returnvalue">gboolean</span>
gimp_plugin_menu_branch_register (<em class="parameter"><code>const <span class="type">gchar</span> *menu_path</code></em>,
                                  <em class="parameter"><code>const <span class="type">gchar</span> *menu_name</code></em>);</pre>
<p>Register a sub-menu.</p>
<p>This procedure installs a sub-menu which does not belong to any
procedure. The menu-name should be the untranslated menu label. GIMP
will look up the translation in the textdomain registered for the
plug-in.</p>
<div class="refsect3">
<a name="gimp-plugin-menu-branch-register.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>menu_path</p></td>
<td class="parameter_description"><p>The sub-menu's menu path.</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>menu_name</p></td>
<td class="parameter_description"><p>The name of the sub-menu.</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect3">
<a name="gimp-plugin-menu-branch-register.returns"></a><h4>Returns</h4>
<p> TRUE on success.</p>
</div>
<p class="since">Since: <a class="link" href="api-index-2-4.html#api-index-2.4">2.4</a></p>
</div>
<hr>
<div class="refsect2">
<a name="gimp-plugin-set-pdb-error-handler"></a><h3>gimp_plugin_set_pdb_error_handler ()</h3>
<pre class="programlisting"><span class="returnvalue">gboolean</span>
gimp_plugin_set_pdb_error_handler (<em class="parameter"><code><a href="../html/libgimpbase-gimpbaseenums.html#GimpPDBErrorHandler"><span class="type">GimpPDBErrorHandler</span></a> handler</code></em>);</pre>
<p>Sets an error handler for procedure calls.</p>
<p>This procedure changes the way that errors in procedure calls are
handled. By default GIMP will raise an error dialog if a procedure
call made by a plug-in fails. Using this procedure the plug-in can
change this behavior. If the error handler is set to
<a href="../html/libgimpbase-gimpbaseenums.html#GIMP-PDB-ERROR-HANDLER-PLUGIN:CAPS"><code class="literal">GIMP_PDB_ERROR_HANDLER_PLUGIN</code></a>, then the plug-in is responsible for
calling <a class="link" href="libgimp-gimp.html#gimp-get-pdb-error" title="gimp_get_pdb_error ()"><code class="function">gimp_get_pdb_error()</code></a> and handling the error whenever one if
its procedure calls fails. It can do this by displaying the error
message or by forwarding it in its own return values.</p>
<div class="refsect3">
<a name="gimp-plugin-set-pdb-error-handler.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody><tr>
<td class="parameter_name"><p>handler</p></td>
<td class="parameter_description"><p>Who is responsible for handling procedure call errors.</p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
<div class="refsect3">
<a name="gimp-plugin-set-pdb-error-handler.returns"></a><h4>Returns</h4>
<p> TRUE on success.</p>
</div>
<p class="since">Since: <a class="link" href="api-index-2-6.html#api-index-2.6">2.6</a></p>
</div>
<hr>
<div class="refsect2">
<a name="gimp-plugin-get-pdb-error-handler"></a><h3>gimp_plugin_get_pdb_error_handler ()</h3>
<pre class="programlisting"><a href="../html/libgimpbase-gimpbaseenums.html#GimpPDBErrorHandler"><span class="returnvalue">GimpPDBErrorHandler</span></a>
gimp_plugin_get_pdb_error_handler (<em class="parameter"><code><span class="type">void</span></code></em>);</pre>
<p>Retrieves the active error handler for procedure calls.</p>
<p>This procedure retrieves the currently active error handler for
procedure calls made by the calling plug-in. See
<a class="link" href="libgimp-gimpplugin.html#gimp-plugin-set-pdb-error-handler" title="gimp_plugin_set_pdb_error_handler ()"><code class="function">gimp_plugin_set_pdb_error_handler()</code></a> for details.</p>
<div class="refsect3">
<a name="gimp-plugin-get-pdb-error-handler.returns"></a><h4>Returns</h4>
<p> Who is responsible for handling procedure call errors.</p>
</div>
<p class="since">Since: <a class="link" href="api-index-2-6.html#api-index-2.6">2.6</a></p>
</div>
<hr>
<div class="refsect2">
<a name="gimp-plugin-enable-precision"></a><h3>gimp_plugin_enable_precision ()</h3>
<pre class="programlisting"><span class="returnvalue">gboolean</span>
gimp_plugin_enable_precision (<em class="parameter"><code><span class="type">void</span></code></em>);</pre>
<p>Switches this plug-in to using the real bit depth of drawables.</p>
<p>Switches this plug-in to using the real bit depth of drawables. This
setting can only be enabled, and not disabled again during the
lifetime of the plug-in. Using <a class="link" href="libgimp-gimpdrawable.html#gimp-drawable-get-buffer" title="gimp_drawable_get_buffer ()"><code class="function">gimp_drawable_get_buffer()</code></a>,
<a class="link" href="libgimp-gimpdrawable.html#gimp-drawable-get-shadow-buffer" title="gimp_drawable_get_shadow_buffer ()"><code class="function">gimp_drawable_get_shadow_buffer()</code></a> or <a class="link" href="libgimp-gimpdrawable.html#gimp-drawable-get-format" title="gimp_drawable_get_format ()"><code class="function">gimp_drawable_get_format()</code></a> will
automatically call this function.</p>
<div class="refsect3">
<a name="gimp-plugin-enable-precision.returns"></a><h4>Returns</h4>
<p> TRUE on success.</p>
</div>
<p class="since">Since: <a class="link" href="api-index-2-10.html#api-index-2.10">2.10</a></p>
</div>
<hr>
<div class="refsect2">
<a name="gimp-plugin-precision-enabled"></a><h3>gimp_plugin_precision_enabled ()</h3>
<pre class="programlisting"><span class="returnvalue">gboolean</span>
gimp_plugin_precision_enabled (<em class="parameter"><code><span class="type">void</span></code></em>);</pre>
<p>Whether this plug-in is using the real bit depth of drawables.</p>
<p>Returns whether this plug-in is using the real bit depth of
drawables, which can be more than 8 bits per channel.</p>
<div class="refsect3">
<a name="gimp-plugin-precision-enabled.returns"></a><h4>Returns</h4>
<p> Whether precision is enabled.</p>
</div>
<p class="since">Since: <a class="link" href="api-index-2-10.html#api-index-2.10">2.10</a></p>
</div>
</div>
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