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<a name="libxfce4ui-libxfce4ui-config"></a><div class="titlepage"></div>
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<h2><span class="refentrytitle"><a name="libxfce4ui-libxfce4ui-config.top_of_page"></a>Version Information</span></h2>
<p>Version Information — Variables and functions to check the Libxfce4ui version.</p>
</td>
<td class="gallery_image" valign="top" align="right"></td>
</tr></table></div>
<div class="refsect1">
<a name="libxfce4ui-libxfce4ui-config.functions"></a><h2>Functions</h2>
<div class="informaltable"><table width="100%" border="0">
<colgroup>
<col width="150px" class="functions_return">
<col class="functions_name">
</colgroup>
<tbody>
<tr>
<td class="function_type">const <a href="https://developer.gnome.org/glib/unstable/glib-Basic-Types.html#gchar"><span class="returnvalue">gchar</span></a> *
</td>
<td class="function_name">
<a class="link" href="libxfce4ui-libxfce4ui-config.html#libxfce4ui-check-version" title="libxfce4ui_check_version ()">libxfce4ui_check_version</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="define_keyword">#define</td>
<td class="function_name"><a class="link" href="libxfce4ui-libxfce4ui-config.html#LIBXFCE4UI-MAJOR-VERSION:CAPS" title="LIBXFCE4UI_MAJOR_VERSION">LIBXFCE4UI_MAJOR_VERSION</a></td>
</tr>
<tr>
<td class="define_keyword">#define</td>
<td class="function_name"><a class="link" href="libxfce4ui-libxfce4ui-config.html#LIBXFCE4UI-MINOR-VERSION:CAPS" title="LIBXFCE4UI_MINOR_VERSION">LIBXFCE4UI_MINOR_VERSION</a></td>
</tr>
<tr>
<td class="define_keyword">#define</td>
<td class="function_name"><a class="link" href="libxfce4ui-libxfce4ui-config.html#LIBXFCE4UI-MICRO-VERSION:CAPS" title="LIBXFCE4UI_MICRO_VERSION">LIBXFCE4UI_MICRO_VERSION</a></td>
</tr>
<tr>
<td class="define_keyword">#define</td>
<td class="function_name">
<a class="link" href="libxfce4ui-libxfce4ui-config.html#LIBXFCE4UI-CHECK-VERSION:CAPS" title="LIBXFCE4UI_CHECK_VERSION()">LIBXFCE4UI_CHECK_VERSION</a><span class="c_punctuation">()</span>
</td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect1">
<a name="libxfce4ui-libxfce4ui-config.other"></a><h2>Types and Values</h2>
<div class="informaltable"><table width="100%" border="0">
<colgroup>
<col width="150px" class="name">
<col class="description">
</colgroup>
<tbody>
<tr>
<td class="variable_type">extern const guint </td>
<td class="function_name"><a class="link" href="libxfce4ui-libxfce4ui-config.html#libxfce4ui-major-version" title="libxfce4ui_major_version">libxfce4ui_major_version</a></td>
</tr>
<tr>
<td class="variable_type">extern const guint </td>
<td class="function_name"><a class="link" href="libxfce4ui-libxfce4ui-config.html#libxfce4ui-minor-version" title="libxfce4ui_minor_version">libxfce4ui_minor_version</a></td>
</tr>
<tr>
<td class="variable_type">extern const guint </td>
<td class="function_name"><a class="link" href="libxfce4ui-libxfce4ui-config.html#libxfce4ui-micro-version" title="libxfce4ui_micro_version">libxfce4ui_micro_version</a></td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect1">
<a name="libxfce4ui-libxfce4ui-config.includes"></a><h2>Includes</h2>
<pre class="synopsis">#include &lt;libxfce4ui/libxfce4ui.h&gt;
</pre>
</div>
<div class="refsect1">
<a name="libxfce4ui-libxfce4ui-config.description"></a><h2>Description</h2>
<p>
Libxfce4ui provides version information, primarily useful in configure
checks for builds that have a configure script. Applications will not
typically use the features described here.
</p>
</div>
<div class="refsect1">
<a name="libxfce4ui-libxfce4ui-config.functions_details"></a><h2>Functions</h2>
<div class="refsect2">
<a name="libxfce4ui-check-version"></a><h3>libxfce4ui_check_version ()</h3>
<pre class="programlisting">const <a href="https://developer.gnome.org/glib/unstable/glib-Basic-Types.html#gchar"><span class="returnvalue">gchar</span></a> *
libxfce4ui_check_version (<em class="parameter"><code><a href="https://developer.gnome.org/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> required_major</code></em>,
<em class="parameter"><code><a href="https://developer.gnome.org/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> required_minor</code></em>,
<em class="parameter"><code><a href="https://developer.gnome.org/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> required_micro</code></em>);</pre>
<p>Checks that the <code class="systemitem">libxfce4ui</code> library
in use is compatible with the given version. Generally you would pass in
the constants <a class="link" href="libxfce4ui-libxfce4ui-config.html#LIBXFCE4UI-MAJOR-VERSION:CAPS" title="LIBXFCE4UI_MAJOR_VERSION"><span class="type">LIBXFCE4UI_MAJOR_VERSION</span></a>, <a class="link" href="libxfce4ui-libxfce4ui-config.html#LIBXFCE4UI-MINOR-VERSION:CAPS" title="LIBXFCE4UI_MINOR_VERSION"><span class="type">LIBXFCE4UI_MINOR_VERSION</span></a> and
<a class="link" href="libxfce4ui-libxfce4ui-config.html#LIBXFCE4UI-MICRO-VERSION:CAPS" title="LIBXFCE4UI_MICRO_VERSION"><span class="type">LIBXFCE4UI_MICRO_VERSION</span></a> as the three arguments to this function; that produces
a check that the library in use is compatible with the version of</p>
<code class="systemitem">libxfce4ui</code> the extension was
<p>compiled against.</p>
<div class="example">
<a name="id-1.3.2.7.2.7"></a><p class="title"><b>Example 1. Checking the runtime version of the Libxfce4ui library</b></p>
<div class="example-contents"><pre class="programlisting">
const gchar *mismatch;
mismatch = libxfce4ui_check_version (LIBXFCE4UI_MAJOR_VERSION,
LIBXFCE4UI_MINOR_VERSION,
LIBXFCE4UI_MICRO_VERSION);
if (G_UNLIKELY (mismatch != NULL))
g_error ("Version mismatch: %s", mismatch);
</pre></div>
</div>
<br class="example-break"><div class="refsect3">
<a name="id-1.3.2.7.2.8"></a><h4>Parameters</h4>
<div class="informaltable"><table 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>required_major</p></td>
<td class="parameter_description"><p>the required major version.</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>required_minor</p></td>
<td class="parameter_description"><p>the required minor version.</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>required_micro</p></td>
<td class="parameter_description"><p>the required micro version.</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect3">
<a name="id-1.3.2.7.2.9"></a><h4>Returns</h4>
<p> <a href="https://developer.gnome.org/glib/unstable/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a> if the library is compatible with the given version,
or a string describing the version mismatch. The returned
string is owned by the library and must not be freed or
modified by the caller.</p>
<p></p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="LIBXFCE4UI-MAJOR-VERSION:CAPS"></a><h3>LIBXFCE4UI_MAJOR_VERSION</h3>
<pre class="programlisting">#define LIBXFCE4UI_MAJOR_VERSION (4)
</pre>
<p>
Like <a class="link" href="libxfce4ui-libxfce4ui-config.html#libxfce4ui-major-version" title="libxfce4ui_major_version"><span class="type">libxfce4ui_major_version</span></a>, but from the headers used at
application compile time, rather than from the library linked against
at application run time.
</p>
</div>
<hr>
<div class="refsect2">
<a name="LIBXFCE4UI-MINOR-VERSION:CAPS"></a><h3>LIBXFCE4UI_MINOR_VERSION</h3>
<pre class="programlisting">#define LIBXFCE4UI_MINOR_VERSION (12)
</pre>
<p>
Like <a class="link" href="libxfce4ui-libxfce4ui-config.html#libxfce4ui-minor-version" title="libxfce4ui_minor_version"><span class="type">libxfce4ui_minor_version</span></a>, but from the headers used at
application compile time, rather than from the library linked against
at application run time.
</p>
</div>
<hr>
<div class="refsect2">
<a name="LIBXFCE4UI-MICRO-VERSION:CAPS"></a><h3>LIBXFCE4UI_MICRO_VERSION</h3>
<pre class="programlisting">#define LIBXFCE4UI_MICRO_VERSION (1)
</pre>
<p>
Like <a class="link" href="libxfce4ui-libxfce4ui-config.html#libxfce4ui-micro-version" title="libxfce4ui_micro_version"><span class="type">libxfce4ui_micro_version</span></a>, but from the headers used at
application compile time, rather than from the library linked against
at application run time.
</p>
</div>
<hr>
<div class="refsect2">
<a name="LIBXFCE4UI-CHECK-VERSION:CAPS"></a><h3>LIBXFCE4UI_CHECK_VERSION()</h3>
<pre class="programlisting">#define LIBXFCE4UI_CHECK_VERSION(major,minor,micro)</pre>
<p>
Returns <a href="https://developer.gnome.org/glib/unstable/glib-Standard-Macros.html#TRUE:CAPS"><code class="literal">TRUE</code></a> if the version of the Libxfce4ui header files is the same
as or newer than the passed-in version.
</p>
<div class="refsect3">
<a name="id-1.3.2.7.6.5"></a><h4>Parameters</h4>
<div class="informaltable"><table 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>major</p></td>
<td class="parameter_description"><p>major version (e.g. 1 for version 1.2.3)</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>minor</p></td>
<td class="parameter_description"><p>minor version (e.g. 2 for version 1.2.3)</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>micro</p></td>
<td class="parameter_description"><p>micro version (e.g. 3 for version 1.2.3)</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
</div>
</div>
<div class="refsect1">
<a name="libxfce4ui-libxfce4ui-config.other_details"></a><h2>Types and Values</h2>
<div class="refsect2">
<a name="libxfce4ui-major-version"></a><h3>libxfce4ui_major_version</h3>
<pre class="programlisting">extern const guint libxfce4ui_major_version;
</pre>
<p>
The major version number of the Libxfce4ui library (e.g. in version
1.2.3 this is 1).
</p>
<p>
This variable is in the library, so represents the Libxfce4ui library
you have linked against. Contrast with the <a class="link" href="libxfce4ui-libxfce4ui-config.html#LIBXFCE4UI-MAJOR-VERSION:CAPS" title="LIBXFCE4UI_MAJOR_VERSION"><span class="type">LIBXFCE4UI_MAJOR_VERSION</span></a>
macro, which represents the major version of the Libxfce4ui headers
you have included.
</p>
</div>
<hr>
<div class="refsect2">
<a name="libxfce4ui-minor-version"></a><h3>libxfce4ui_minor_version</h3>
<pre class="programlisting">extern const guint libxfce4ui_minor_version;
</pre>
<p>
The minor version number of the Libxfce4ui library (e.g. in version
1.2.3 this is 2).
</p>
<p>
This variable is in the library, so represents the Libxfce4ui library
you have linked against. Contrast with the <a class="link" href="libxfce4ui-libxfce4ui-config.html#LIBXFCE4UI-MINOR-VERSION:CAPS" title="LIBXFCE4UI_MINOR_VERSION"><span class="type">LIBXFCE4UI_MINOR_VERSION</span></a>
macro, which represents the minor version of the Libxfce4ui headers
you have included.
</p>
</div>
<hr>
<div class="refsect2">
<a name="libxfce4ui-micro-version"></a><h3>libxfce4ui_micro_version</h3>
<pre class="programlisting">extern const guint libxfce4ui_micro_version;
</pre>
<p>
The micro version number of the Libxfce4ui library (e.g. in version
1.2.3 this is 3).
</p>
<p>
This variable is in the library, so represents the Libxfce4ui library
you have linked against. Contrast with the <a class="link" href="libxfce4ui-libxfce4ui-config.html#LIBXFCE4UI-MICRO-VERSION:CAPS" title="LIBXFCE4UI_MICRO_VERSION"><span class="type">LIBXFCE4UI_MICRO_VERSION</span></a>
macro, which represents the micro version of the Libxfce4ui headers
you have included.
</p>
</div>
</div>
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