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<a href="#libecal-e-cal-recur.description" class="shortcut">Description</a>
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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>
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<div class="refsynopsisdiv">
<a name="libecal-e-cal-recur.synopsis"></a><h2>Synopsis</h2>
<pre class="synopsis"><span class="returnvalue">gboolean</span> (<a class="link" href="libecal-e-cal-recur.html#ECalRecurInstanceFn" title="ECalRecurInstanceFn ()">*ECalRecurInstanceFn</a>) (<em class="parameter"><code><a class="link" href="libecal-ECalComponent.html#ECalComponent" title="struct 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><span class="type">gpointer</span> data</code></em>);
<span class="returnvalue">icaltimezone</span> * (<a class="link" href="libecal-e-cal-recur.html#ECalRecurResolveTimezoneFn" title="ECalRecurResolveTimezoneFn ()">*ECalRecurResolveTimezoneFn</a>) (<em class="parameter"><code>const <span class="type">gchar</span> *tzid</code></em>,
<em class="parameter"><code><span class="type">gpointer</span> data</code></em>);
<span class="returnvalue">void</span> <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> (<em class="parameter"><code><a class="link" href="libecal-ECalComponent.html#ECalComponent" title="struct 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><span class="type">gpointer</span> 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><span class="type">gpointer</span> tz_cb_data</code></em>,
<em class="parameter"><code><span class="type">icaltimezone</span> *default_timezone</code></em>);
<span class="returnvalue">time_t</span> <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> (<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><span class="type">gboolean</span> convert_end_date</code></em>);
<span class="returnvalue">gboolean</span> <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> (<em class="parameter"><code><a class="link" href="libecal-ECalComponent.html#ECalComponent" title="struct ECalComponent"><span class="type">ECalComponent</span></a> *comp</code></em>,
<em class="parameter"><code><span class="type">gboolean</span> 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><span class="type">gpointer</span> tz_cb_data</code></em>);
const <span class="returnvalue">gchar</span> ** <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> (<em class="parameter"><code><span class="type">void</span></code></em>);
#define <a class="link" href="libecal-e-cal-recur.html#e-cal-recur-nth" title="e_cal_recur_nth">e_cal_recur_nth</a>
</pre>
</div>
<div class="refsect1">
<a name="libecal-e-cal-recur.description"></a><h2>Description</h2>
<p>
</p>
</div>
<div class="refsect1">
<a name="libecal-e-cal-recur.details"></a><h2>Details</h2>
<div class="refsect2">
<a name="ECalRecurInstanceFn"></a><h3>ECalRecurInstanceFn ()</h3>
<pre class="programlisting"><span class="returnvalue">gboolean</span> (*ECalRecurInstanceFn) (<em class="parameter"><code><a class="link" href="libecal-ECalComponent.html#ECalComponent" title="struct 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><span class="type">gpointer</span> data</code></em>);</pre>
<p>
</p>
</div>
<hr>
<div class="refsect2">
<a name="ECalRecurResolveTimezoneFn"></a><h3>ECalRecurResolveTimezoneFn ()</h3>
<pre class="programlisting"><span class="returnvalue">icaltimezone</span> * (*ECalRecurResolveTimezoneFn) (<em class="parameter"><code>const <span class="type">gchar</span> *tzid</code></em>,
<em class="parameter"><code><span class="type">gpointer</span> data</code></em>);</pre>
<p>
</p>
</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="libecal-ECalComponent.html#ECalComponent" title="struct 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><span class="type">gpointer</span> 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><span class="type">gpointer</span> 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="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>comp</code></em> :</span></p></td>
<td>A calendar component object.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>start</code></em> :</span></p></td>
<td>Range start time.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>end</code></em> :</span></p></td>
<td>Range end time.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>cb</code></em> :</span></p></td>
<td>Callback function.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>cb_data</code></em> :</span></p></td>
<td>Closure data for the callback function.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>tz_cb</code></em> :</span></p></td>
<td>Callback for retrieving timezones.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>tz_cb_data</code></em> :</span></p></td>
<td>Closure data for the timezone callback.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>default_timezone</code></em> :</span></p></td>
<td>Default timezone to use when a timezone cannot be
found.</td>
</tr>
</tbody>
</table></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><span class="type">gboolean</span> convert_end_date</code></em>);</pre>
<p>
</p>
</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"><span class="returnvalue">gboolean</span> e_cal_recur_ensure_end_dates (<em class="parameter"><code><a class="link" href="libecal-ECalComponent.html#ECalComponent" title="struct ECalComponent"><span class="type">ECalComponent</span></a> *comp</code></em>,
<em class="parameter"><code><span class="type">gboolean</span> 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><span class="type">gpointer</span> 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 <code class="literal">TRUE</code> it will recalculate all enddates
for rules which use COUNT. If <em class="parameter"><code>refresh</code></em> is <code class="literal">FALSE</code>, it will only calculate
the enddate if it hasn't already been set. It returns <code class="literal">TRUE</code> 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>
<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 <span class="returnvalue">gchar</span> ** 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="variablelist"><table border="0">
<col align="left" valign="top">
<tbody><tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>a pointer to an array of strings. This array is static, do not free it.</td>
</tr></tbody>
</table></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>
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