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<a name="libecal-e-cal-recur"></a><div class="titlepage"></div>
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<h2><span class="refentrytitle"><a name="libecal-e-cal-recur.top_of_page"></a>e-cal-recur</span></h2>
<p>e-cal-recur</p>
</td>
<td class="gallery_image" valign="top" align="right"></td>
</tr></table></div>
<div class="refsect1">
<a name="libecal-e-cal-recur.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">
<a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>
</td>
<td class="function_name">
<span class="c_punctuation">(</span><a class="link" href="libecal-e-cal-recur.html#ECalRecurInstanceFn" title="ECalRecurInstanceFn ()">*ECalRecurInstanceFn</a><span class="c_punctuation">)</span> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">icaltimezone</span> *
</td>
<td class="function_name">
<span class="c_punctuation">(</span><a class="link" href="libecal-e-cal-recur.html#ECalRecurResolveTimezoneFn" title="ECalRecurResolveTimezoneFn ()">*ECalRecurResolveTimezoneFn</a><span class="c_punctuation">)</span> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">void</span>
</td>
<td class="function_name">
<a class="link" href="libecal-e-cal-recur.html#e-cal-recur-generate-instances" title="e_cal_recur_generate_instances ()">e_cal_recur_generate_instances</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">time_t</span>
</td>
<td class="function_name">
<a class="link" href="libecal-e-cal-recur.html#e-cal-recur-obtain-enddate" title="e_cal_recur_obtain_enddate ()">e_cal_recur_obtain_enddate</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>
</td>
<td class="function_name">
<a class="link" href="libecal-e-cal-recur.html#e-cal-recur-ensure-end-dates" title="e_cal_recur_ensure_end_dates ()">e_cal_recur_ensure_end_dates</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">const <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gchar"><span class="returnvalue">gchar</span></a> **
</td>
<td class="function_name">
<a class="link" href="libecal-e-cal-recur.html#e-cal-get-recur-nth" title="e_cal_get_recur_nth ()">e_cal_get_recur_nth</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="define_keyword">#define</td>
<td class="function_name"><a class="link" href="libecal-e-cal-recur.html#e-cal-recur-nth" title="e_cal_recur_nth">e_cal_recur_nth</a></td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect1">
<a name="libecal-e-cal-recur.object-hierarchy"></a><h2>Object Hierarchy</h2>
<pre class="screen">
</pre>
</div>
<div class="refsect1">
<a name="libecal-e-cal-recur.description"></a><h2>Description</h2>
</div>
<div class="refsect1">
<a name="libecal-e-cal-recur.functions_details"></a><h2>Functions</h2>
<div class="refsect2">
<a name="ECalRecurInstanceFn"></a><h3>ECalRecurInstanceFn ()</h3>
<pre class="programlisting"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>
<span class="c_punctuation">(</span>*ECalRecurInstanceFn<span class="c_punctuation">)</span> (<em class="parameter"><code><a class="link" href="ECalComponent.html" title="ECalComponent"><span class="type">ECalComponent</span></a> *comp</code></em>,
<em class="parameter"><code><span class="type">time_t</span> instance_start</code></em>,
<em class="parameter"><code><span class="type">time_t</span> instance_end</code></em>,
<em class="parameter"><code><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a> data</code></em>);</pre>
</div>
<hr>
<div class="refsect2">
<a name="ECalRecurResolveTimezoneFn"></a><h3>ECalRecurResolveTimezoneFn ()</h3>
<pre class="programlisting"><span class="returnvalue">icaltimezone</span> *
<span class="c_punctuation">(</span>*ECalRecurResolveTimezoneFn<span class="c_punctuation">)</span> (<em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *tzid</code></em>,
<em class="parameter"><code><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a> data</code></em>);</pre>
</div>
<hr>
<div class="refsect2">
<a name="e-cal-recur-generate-instances"></a><h3>e_cal_recur_generate_instances ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
e_cal_recur_generate_instances (<em class="parameter"><code><a class="link" href="ECalComponent.html" title="ECalComponent"><span class="type">ECalComponent</span></a> *comp</code></em>,
<em class="parameter"><code><span class="type">time_t</span> start</code></em>,
<em class="parameter"><code><span class="type">time_t</span> end</code></em>,
<em class="parameter"><code><a class="link" href="libecal-e-cal-recur.html#ECalRecurInstanceFn" title="ECalRecurInstanceFn ()"><span class="type">ECalRecurInstanceFn</span></a> cb</code></em>,
<em class="parameter"><code><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a> cb_data</code></em>,
<em class="parameter"><code><a class="link" href="libecal-e-cal-recur.html#ECalRecurResolveTimezoneFn" title="ECalRecurResolveTimezoneFn ()"><span class="type">ECalRecurResolveTimezoneFn</span></a> tz_cb</code></em>,
<em class="parameter"><code><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a> tz_cb_data</code></em>,
<em class="parameter"><code><span class="type">icaltimezone</span> *default_timezone</code></em>);</pre>
<p>Calls the given callback function for each occurrence of the event that
intersects the range between the given <em class="parameter"><code>start</code></em>
and <em class="parameter"><code>end</code></em>
times (the end time is
not included). Note that the occurrences may start before the given start
time.</p>
<p>If the callback routine returns FALSE the occurrence generation stops.</p>
<p>Both start and end can be -1, in which case we start at the events first
instance and continue until it ends, or forever if it has no enddate.</p>
<p>The tz_cb is used to resolve references to timezones. It is passed a TZID
and should return the icaltimezone* corresponding to that TZID. We need to
do this as we access timezones in different ways on the client & server.</p>
<p>The default_timezone argument is used for DTSTART or DTEND properties that
are DATE values or do not have a TZID (i.e. floating times).</p>
<div class="refsect3">
<a name="id-1.2.5.6.4.9"></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>comp</p></td>
<td class="parameter_description"><p>A calendar component object</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>start</p></td>
<td class="parameter_description"><p>Range start time</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>end</p></td>
<td class="parameter_description"><p>Range end time</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>cb</p></td>
<td class="parameter_description"><p> Callback function. </p></td>
<td class="parameter_annotations"><span class="annotation">[<acronym title="This parameter is a 'user_data', for callbacks; many bindings can pass NULL here."><span class="acronym">closure</span></acronym> cb_data][<acronym title="The callback is valid only during the call to the method."><span class="acronym">scope call</span></acronym>]</span></td>
</tr>
<tr>
<td class="parameter_name"><p>cb_data</p></td>
<td class="parameter_description"><p> Closure data for the callback function. </p></td>
<td class="parameter_annotations"><span class="annotation">[<acronym title="This parameter is a 'user_data', for callbacks; many bindings can pass NULL here."><span class="acronym">closure</span></acronym>]</span></td>
</tr>
<tr>
<td class="parameter_name"><p>tz_cb</p></td>
<td class="parameter_description"><p> Callback for retrieving timezones. </p></td>
<td class="parameter_annotations"><span class="annotation">[<acronym title="This parameter is a 'user_data', for callbacks; many bindings can pass NULL here."><span class="acronym">closure</span></acronym> tz_cb_data][<acronym title="The callback is valid only during the call to the method."><span class="acronym">scope call</span></acronym>]</span></td>
</tr>
<tr>
<td class="parameter_name"><p>tz_cb_data</p></td>
<td class="parameter_description"><p> Closure data for the timezone callback. </p></td>
<td class="parameter_annotations"><span class="annotation">[<acronym title="This parameter is a 'user_data', for callbacks; many bindings can pass NULL here."><span class="acronym">closure</span></acronym>]</span></td>
</tr>
<tr>
<td class="parameter_name"><p>default_timezone</p></td>
<td class="parameter_description"><p>Default timezone to use when a timezone cannot be
found</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
</div>
<hr>
<div class="refsect2">
<a name="e-cal-recur-obtain-enddate"></a><h3>e_cal_recur_obtain_enddate ()</h3>
<pre class="programlisting"><span class="returnvalue">time_t</span>
e_cal_recur_obtain_enddate (<em class="parameter"><code><span class="type">struct icalrecurrencetype</span> *ir</code></em>,
<em class="parameter"><code><span class="type">icalproperty</span> *prop</code></em>,
<em class="parameter"><code><span class="type">icaltimezone</span> *zone</code></em>,
<em class="parameter"><code><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a> convert_end_date</code></em>);</pre>
</div>
<hr>
<div class="refsect2">
<a name="e-cal-recur-ensure-end-dates"></a><h3>e_cal_recur_ensure_end_dates ()</h3>
<pre class="programlisting"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>
e_cal_recur_ensure_end_dates (<em class="parameter"><code><a class="link" href="ECalComponent.html" title="ECalComponent"><span class="type">ECalComponent</span></a> *comp</code></em>,
<em class="parameter"><code><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a> refresh</code></em>,
<em class="parameter"><code><a class="link" href="libecal-e-cal-recur.html#ECalRecurResolveTimezoneFn" title="ECalRecurResolveTimezoneFn ()"><span class="type">ECalRecurResolveTimezoneFn</span></a> tz_cb</code></em>,
<em class="parameter"><code><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a> tz_cb_data</code></em>);</pre>
<p>This recalculates the end dates for recurrence & exception rules which use
the COUNT property. If <em class="parameter"><code>refresh</code></em>
is <a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#TRUE:CAPS"><code class="literal">TRUE</code></a> it will recalculate all enddates
for rules which use COUNT. If <em class="parameter"><code>refresh</code></em>
is <a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#FALSE:CAPS"><code class="literal">FALSE</code></a>, it will only calculate
the enddate if it hasn't already been set. It returns <a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#TRUE:CAPS"><code class="literal">TRUE</code></a> if the component
was changed, i.e. if the component should be saved at some point.
We store the enddate in the "X-EVOLUTION-ENDDATE" parameter of the RRULE
or EXRULE.</p>
<div class="refsect3">
<a name="id-1.2.5.6.6.5"></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>comp</p></td>
<td class="parameter_description"><p>an <a class="link" href="ECalComponent.html" title="ECalComponent"><span class="type">ECalComponent</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>refresh</p></td>
<td class="parameter_description"><p><a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#TRUE:CAPS"><code class="literal">TRUE</code></a> to recalculate all end dates</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>tz_cb</p></td>
<td class="parameter_description"><p> function to call to resolve
timezones. </p></td>
<td class="parameter_annotations"><span class="annotation">[<acronym title="This parameter is a 'user_data', for callbacks; many bindings can pass NULL here."><span class="acronym">closure</span></acronym> tz_cb_data][<acronym title="The callback is valid only during the call to the method."><span class="acronym">scope call</span></acronym>]</span></td>
</tr>
<tr>
<td class="parameter_name"><p>tz_cb_data</p></td>
<td class="parameter_description"><p> data to pass to <em class="parameter"><code>tz_cb</code></em>
. </p></td>
<td class="parameter_annotations"><span class="annotation">[<acronym title="This parameter is a 'user_data', for callbacks; many bindings can pass NULL here."><span class="acronym">closure</span></acronym>]</span></td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect3">
<a name="id-1.2.5.6.6.6"></a><h4>Returns</h4>
<p> <a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#TRUE:CAPS"><code class="literal">TRUE</code></a> if the component was changed, <a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#FALSE:CAPS"><code class="literal">FALSE</code></a> otherwise</p>
<p></p>
</div>
<p class="since">Since 2.32</p>
</div>
<hr>
<div class="refsect2">
<a name="e-cal-get-recur-nth"></a><h3>e_cal_get_recur_nth ()</h3>
<pre class="programlisting">const <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gchar"><span class="returnvalue">gchar</span></a> **
e_cal_get_recur_nth (<em class="parameter"><code><span class="type">void</span></code></em>);</pre>
<p>Returns an array of 31 translated strings for each day of the month
(i.e. "1st", "2nd", and so on).</p>
<div class="refsect3">
<a name="id-1.2.5.6.7.5"></a><h4>Returns</h4>
<p> a pointer to an array of strings. This array is static, do not free it.</p>
<p></p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="e-cal-recur-nth"></a><h3>e_cal_recur_nth</h3>
<pre class="programlisting">#define e_cal_recur_nth (e_cal_get_recur_nth ())
</pre>
<p>An array of 31 translated strings for each day of the month (i.e. "1st",
"2nd", and so on).</p>
</div>
</div>
<div class="refsect1">
<a name="libecal-e-cal-recur.other_details"></a><h2>Types and Values</h2>
</div>
</div>
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