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<h1>Gst::ClockID Class Reference</h1><!-- doxytag: class="Gst::ClockID" -->
<p>A datatype to hold the handle to an outstanding sync or async clock callback. <a href="#_details">More...</a></p>
<p><a href="classGst_1_1ClockID-members.html">List of all members.</a></p>
<table border="0" cellpadding="0" cellspacing="0">
<tr><td colspan="2"><h2>Public Types</h2></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">typedef <a class="elRef" href="../../../libsigc++-2.0/reference/html/classsigc_1_1slot.html">sigc::slot</a>< bool, <br class="typebreak"/>
const <a class="elRef" href="../../../glibmm-2.4/reference/html/classGlib_1_1RefPtr.html">Glib::RefPtr</a>< <a class="el" href="classGst_1_1Clock.html">Gst::Clock</a> ><br class="typebreak"/>
&, <a class="el" href="namespaceGst.html#ad35f82b74cae5822fe16b231e8293cda">ClockTime</a>, const <br class="typebreak"/>
<a class="elRef" href="../../../glibmm-2.4/reference/html/classGlib_1_1RefPtr.html">Glib::RefPtr</a>< <a class="el" href="classGst_1_1ClockID.html">Gst::ClockID</a> >& > </td><td class="memItemRight" valign="bottom"><a class="el" href="classGst_1_1ClockID.html#a78a33ddc8fe0c105dc774c5717222786">SlotClock</a></td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">For example, bool on_clock(const Glib::RefPtr<Gst::Clock>& clock, ClockTime time, const Glib::RefPtr<Gst::ClockID>& id);. <a href="#a78a33ddc8fe0c105dc774c5717222786"></a><br/></td></tr>
<tr><td colspan="2"><h2>Public Member Functions</h2></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classGst_1_1ClockID.html#a6da45cb2903241e49d1e30b312c05d45">reference</a> () const </td></tr>
<tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classGst_1_1ClockID.html#ac79a3dacc0f64f684013cc4273185bdc">unreference</a> () const </td></tr>
<tr><td class="memItemLeft" align="right" valign="top">GstClockEntry* </td><td class="memItemRight" valign="bottom"><a class="el" href="classGst_1_1ClockID.html#a3dfdddcd929a4bbbb0965367682fa39d">gobj</a> ()</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Provides access to the underlying C instance. <a href="#a3dfdddcd929a4bbbb0965367682fa39d"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">const GstClockEntry* </td><td class="memItemRight" valign="bottom"><a class="el" href="classGst_1_1ClockID.html#ad55bacf6bc0c13d2eaf9119a53472ce2">gobj</a> () const </td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Provides access to the underlying C instance. <a href="#ad55bacf6bc0c13d2eaf9119a53472ce2"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">GstClockEntry* </td><td class="memItemRight" valign="bottom"><a class="el" href="classGst_1_1ClockID.html#a0a1e2a8dd6d0389039087ab410c9dcfe">gobj_copy</a> () const </td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Provides access to the underlying C instance. The caller is responsible for unrefing it. Use when directly setting fields in structs. <a href="#a0a1e2a8dd6d0389039087ab410c9dcfe"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="el" href="namespaceGst.html#ad35f82b74cae5822fe16b231e8293cda">ClockTime</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="classGst_1_1ClockID.html#a98c71083a3ab7a58708fe4c5c7bf76ff">get_time</a> () const </td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Get the time of the clock ID. <a href="#a98c71083a3ab7a58708fe4c5c7bf76ff"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="el" href="group__gstreamermmEnums.html#gaa501f23d690de389e755e652093d9392">ClockReturn</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="classGst_1_1ClockID.html#accdf252dcc9f7ba00d46e7c979fbf137">wait</a> (<a class="el" href="namespaceGst.html#a1bd878eb666682156ef268a6ff0ad16c">ClockTimeDiff</a>& jitter)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Perform a blocking wait on the <a class="el" href="classGst_1_1ClockID.html" title="A datatype to hold the handle to an outstanding sync or async clock callback.">Gst::ClockID</a>. <a href="#accdf252dcc9f7ba00d46e7c979fbf137"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="el" href="group__gstreamermmEnums.html#gaa501f23d690de389e755e652093d9392">ClockReturn</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="classGst_1_1ClockID.html#ad11cfa71447a9365364ee3e63b3bcd4b">wait</a> ()</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Perform a blocking wait without requiring a jitter argument. <a href="#ad11cfa71447a9365364ee3e63b3bcd4b"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="el" href="group__gstreamermmEnums.html#gaa501f23d690de389e755e652093d9392">ClockReturn</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="classGst_1_1ClockID.html#a05351f52919ad9a36743f59848e74c28">wait_async</a> (const <a class="elRef" href="../../../libsigc++-2.0/reference/html/classsigc_1_1slot.html">SlotClock</a>& slot)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Register a slot on the given <a class="el" href="classGst_1_1ClockID.html" title="A datatype to hold the handle to an outstanding sync or async clock callback.">Gst::ClockID</a> id with the given slot. <a href="#a05351f52919ad9a36743f59848e74c28"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classGst_1_1ClockID.html#aac9b66d4c3632a5f2c7bc3a1975cfded">unschedule</a> ()</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Cancel an outstanding request with <em>id</em>. <a href="#aac9b66d4c3632a5f2c7bc3a1975cfded"></a><br/></td></tr>
<tr><td colspan="2"><h2>Protected Member Functions</h2></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="classGst_1_1ClockID.html#a8bde694586936a5d0daa973191c82b22">ClockID</a> ()</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classGst_1_1ClockID.html#ab53858a362a091ca0b2784f113279f74">operator delete</a> (void*, size_t)</td></tr>
<tr><td colspan="2"><h2>Related Functions</h2></td></tr>
<tr><td colspan="2"><p>(Note that these are not member functions.) </p>
<br/><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="elRef" href="../../../glibmm-2.4/reference/html/classGlib_1_1RefPtr.html">Glib::RefPtr</a>< <a class="el" href="classGst_1_1ClockID.html">Gst::ClockID</a> > </td><td class="memItemRight" valign="bottom"><a class="el" href="classGst_1_1ClockID.html#aba633ba6dde51e71c5e61d0555d836f2">wrap</a> (GstClockEntry* object, bool take_copy=false)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">A <a class="elRef" href="../../../glibmm-2.4/reference/html/namespaceGlib.html#a671306f4a3a0cae5ab4d7a9d54886592">Glib::wrap()</a> method for this object. <a href="#aba633ba6dde51e71c5e61d0555d836f2"></a><br/></td></tr>
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<hr/><a name="_details"></a><h2>Detailed Description</h2>
<p>A datatype to hold the handle to an outstanding sync or async clock callback. </p>
<hr/><h2>Member Typedef Documentation</h2>
<a class="anchor" id="a78a33ddc8fe0c105dc774c5717222786"></a><!-- doxytag: member="Gst::ClockID::SlotClock" ref="a78a33ddc8fe0c105dc774c5717222786" args="" -->
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<td class="memname">typedef <a class="elRef" href="../../../libsigc++-2.0/reference/html/classsigc_1_1slot.html">sigc::slot</a>< bool, const <a class="elRef" href="../../../glibmm-2.4/reference/html/classGlib_1_1RefPtr.html">Glib::RefPtr</a><<a class="el" href="classGst_1_1Clock.html">Gst::Clock</a>>&, <a class="el" href="namespaceGst.html#ad35f82b74cae5822fe16b231e8293cda">ClockTime</a>, const <a class="elRef" href="../../../glibmm-2.4/reference/html/classGlib_1_1RefPtr.html">Glib::RefPtr</a><<a class="el" href="classGst_1_1ClockID.html">Gst::ClockID</a>>& > <a class="elRef" href="../../../libsigc++-2.0/reference/html/classsigc_1_1slot.html">Gst::ClockID::SlotClock</a></td>
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<p>For example, bool on_clock(const Glib::RefPtr<Gst::Clock>& clock, ClockTime time, const Glib::RefPtr<Gst::ClockID>& id);. </p>
<p>The clock function return value is currently unused (see GstClockCallback). </p>
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<hr/><h2>Constructor & Destructor Documentation</h2>
<a class="anchor" id="a8bde694586936a5d0daa973191c82b22"></a><!-- doxytag: member="Gst::ClockID::ClockID" ref="a8bde694586936a5d0daa973191c82b22" args="()" -->
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<td class="memname">Gst::ClockID::ClockID </td>
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<td><code> [protected]</code></td>
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<hr/><h2>Member Function Documentation</h2>
<a class="anchor" id="a98c71083a3ab7a58708fe4c5c7bf76ff"></a><!-- doxytag: member="Gst::ClockID::get_time" ref="a98c71083a3ab7a58708fe4c5c7bf76ff" args="() const " -->
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<td class="memname"><a class="el" href="namespaceGst.html#ad35f82b74cae5822fe16b231e8293cda">ClockTime</a> Gst::ClockID::get_time </td>
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<p>Get the time of the clock ID. </p>
<dl class="return"><dt><b>Returns:</b></dt><dd>The time of the given clock id.</dd></dl>
<p>MT safe. </p>
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<td class="memname">const GstClockEntry* Gst::ClockID::gobj </td>
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<p>Provides access to the underlying C instance. </p>
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<a class="anchor" id="a3dfdddcd929a4bbbb0965367682fa39d"></a><!-- doxytag: member="Gst::ClockID::gobj" ref="a3dfdddcd929a4bbbb0965367682fa39d" args="()" -->
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<td class="memname">GstClockEntry* Gst::ClockID::gobj </td>
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<p>Provides access to the underlying C instance. </p>
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<a class="anchor" id="a0a1e2a8dd6d0389039087ab410c9dcfe"></a><!-- doxytag: member="Gst::ClockID::gobj_copy" ref="a0a1e2a8dd6d0389039087ab410c9dcfe" args="() const " -->
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<td class="memname">GstClockEntry* Gst::ClockID::gobj_copy </td>
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<p>Provides access to the underlying C instance. The caller is responsible for unrefing it. Use when directly setting fields in structs. </p>
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<td class="memname">void Gst::ClockID::operator delete </td>
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<td>)</td>
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<td class="memname">void Gst::ClockID::reference </td>
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<a class="anchor" id="ac79a3dacc0f64f684013cc4273185bdc"></a><!-- doxytag: member="Gst::ClockID::unreference" ref="ac79a3dacc0f64f684013cc4273185bdc" args="() const " -->
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<td class="memname">void Gst::ClockID::unreference </td>
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<a class="anchor" id="aac9b66d4c3632a5f2c7bc3a1975cfded"></a><!-- doxytag: member="Gst::ClockID::unschedule" ref="aac9b66d4c3632a5f2c7bc3a1975cfded" args="()" -->
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<td class="memname">void Gst::ClockID::unschedule </td>
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<p>Cancel an outstanding request with <em>id</em>. </p>
<p>This can either be an outstanding async notification or a pending sync notification. After this call, <em>id</em> cannot be used anymore to receive sync or async notifications, you need to create a new <a class="el" href="classGst_1_1ClockID.html" title="A datatype to hold the handle to an outstanding sync or async clock callback.">Gst::ClockID</a>.</p>
<p>MT safe. </p>
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<td class="memname"><a class="el" href="group__gstreamermmEnums.html#gaa501f23d690de389e755e652093d9392">ClockReturn</a> Gst::ClockID::wait </td>
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<p>Perform a blocking wait without requiring a jitter argument. </p>
<p><a class="el" href="classGst_1_1ClockID.html" title="A datatype to hold the handle to an outstanding sync or async clock callback.">Gst::ClockID</a> should have been created with <a class="el" href="classGst_1_1Clock.html#a6bde543425d75bb5b34d942d0a9babcb" title="Get a Gst::ClockID from clock to trigger a single shot notification at the requested...">Gst::Clock::create_single_shot_id()</a> or <a class="el" href="classGst_1_1Clock.html#a8fca82c5689e727a9c07601919fac477" title="Get an ID from clock to trigger a periodic notification.">Gst::Clock::create_periodic_id()</a> and should not have been unscheduled with a call to <a class="el" href="classGst_1_1ClockID.html#aac9b66d4c3632a5f2c7bc3a1975cfded" title="Cancel an outstanding request with id.">unschedule()</a>. </p>
<dl class="return"><dt><b>Returns:</b></dt><dd>The result of the blocking wait. <a class="el" href="group__gstreamermmEnums.html#ggaa501f23d690de389e755e652093d9392a04f26a5ef59a49a8ee6ce82e5cd78983">Gst::CLOCK_EARLY</a> will be returned if the current clock time is past the time of <a class="el" href="classGst_1_1ClockID.html" title="A datatype to hold the handle to an outstanding sync or async clock callback.">Gst::ClockID</a>, <a class="el" href="group__gstreamermmEnums.html#ggaa501f23d690de389e755e652093d9392ac7af553722196e71a62d247db837d333">Gst::CLOCK_OK</a> if <a class="el" href="classGst_1_1ClockID.html" title="A datatype to hold the handle to an outstanding sync or async clock callback.">Gst::ClockID</a> was scheduled in time. <a class="el" href="group__gstreamermmEnums.html#ggaa501f23d690de389e755e652093d9392a26d9d6d6ec4f3d95e7520eab14114a1d">Gst::CLOCK_UNSCHEDULED</a> if <a class="el" href="classGst_1_1ClockID.html" title="A datatype to hold the handle to an outstanding sync or async clock callback.">Gst::ClockID</a> was unscheduled with <a class="el" href="classGst_1_1ClockID.html#aac9b66d4c3632a5f2c7bc3a1975cfded" title="Cancel an outstanding request with id.">unschedule()</a>. </dd></dl>
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<td class="memname"><a class="el" href="group__gstreamermmEnums.html#gaa501f23d690de389e755e652093d9392">ClockReturn</a> Gst::ClockID::wait </td>
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<p>Perform a blocking wait on the <a class="el" href="classGst_1_1ClockID.html" title="A datatype to hold the handle to an outstanding sync or async clock callback.">Gst::ClockID</a>. </p>
<p>The <a class="el" href="classGst_1_1ClockID.html" title="A datatype to hold the handle to an outstanding sync or async clock callback.">Gst::ClockID</a> should have been created with <a class="el" href="classGst_1_1Clock.html#a6bde543425d75bb5b34d942d0a9babcb" title="Get a Gst::ClockID from clock to trigger a single shot notification at the requested...">Gst::Clock::create_single_shot_id()</a> or <a class="el" href="classGst_1_1Clock.html#a8fca82c5689e727a9c07601919fac477" title="Get an ID from clock to trigger a periodic notification.">Gst::Clock::create_periodic_id()</a> and should not have been unscheduled with a call to <a class="el" href="classGst_1_1ClockID.html#aac9b66d4c3632a5f2c7bc3a1975cfded" title="Cancel an outstanding request with id.">unschedule()</a>.</p>
<p>If this function returns <a class="el" href="group__gstreamermmEnums.html#ggaa501f23d690de389e755e652093d9392ac7af553722196e71a62d247db837d333">Gst::CLOCK_OK</a> or <a class="el" href="group__gstreamermmEnums.html#ggaa501f23d690de389e755e652093d9392a04f26a5ef59a49a8ee6ce82e5cd78983">Gst::CLOCK_EARLY</a>, the <em>jitter</em> argument will contain the difference against the clock and the time of the <a class="el" href="classGst_1_1ClockID.html" title="A datatype to hold the handle to an outstanding sync or async clock callback.">Gst::ClockID</a> when this method was called. Positive values indicate how late the <a class="el" href="classGst_1_1ClockID.html" title="A datatype to hold the handle to an outstanding sync or async clock callback.">Gst::ClockID</a> was relative to the clock (in which case this function will return <a class="el" href="group__gstreamermmEnums.html#ggaa501f23d690de389e755e652093d9392a04f26a5ef59a49a8ee6ce82e5cd78983">Gst::CLOCK_EARLY</a>). Negative values indicate how much time was spent waiting on the clock before this function returned. </p>
<dl><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td valign="top"></td><td valign="top"><em>jitter</em> </td><td>A pointer that will contain the jitter. </td></tr>
</table>
</dd>
</dl>
<dl class="return"><dt><b>Returns:</b></dt><dd>The result of the blocking wait. <a class="el" href="group__gstreamermmEnums.html#ggaa501f23d690de389e755e652093d9392a04f26a5ef59a49a8ee6ce82e5cd78983">Gst::CLOCK_EARLY</a> will be returned if the current clock time is past the time of the <a class="el" href="classGst_1_1ClockID.html" title="A datatype to hold the handle to an outstanding sync or async clock callback.">Gst::ClockID</a>, <a class="el" href="group__gstreamermmEnums.html#ggaa501f23d690de389e755e652093d9392ac7af553722196e71a62d247db837d333">Gst::CLOCK_OK</a> if <a class="el" href="classGst_1_1ClockID.html" title="A datatype to hold the handle to an outstanding sync or async clock callback.">Gst::ClockID</a> was scheduled in time. <a class="el" href="group__gstreamermmEnums.html#ggaa501f23d690de389e755e652093d9392a26d9d6d6ec4f3d95e7520eab14114a1d">Gst::CLOCK_UNSCHEDULED</a> if <a class="el" href="classGst_1_1ClockID.html" title="A datatype to hold the handle to an outstanding sync or async clock callback.">Gst::ClockID</a> was unscheduled with <a class="el" href="classGst_1_1ClockID.html#aac9b66d4c3632a5f2c7bc3a1975cfded" title="Cancel an outstanding request with id.">unschedule()</a>.</dd></dl>
<p>MT safe. </p>
</div>
</div>
<a class="anchor" id="a05351f52919ad9a36743f59848e74c28"></a><!-- doxytag: member="Gst::ClockID::wait_async" ref="a05351f52919ad9a36743f59848e74c28" args="(const SlotClock &slot)" -->
<div class="memitem">
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<td class="memname"><a class="el" href="group__gstreamermmEnums.html#gaa501f23d690de389e755e652093d9392">ClockReturn</a> Gst::ClockID::wait_async </td>
<td>(</td>
<td class="paramtype">const <a class="elRef" href="../../../libsigc++-2.0/reference/html/classsigc_1_1slot.html">SlotClock</a> & </td>
<td class="paramname"> <em>slot</em></td>
<td> ) </td>
<td></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>Register a slot on the given <a class="el" href="classGst_1_1ClockID.html" title="A datatype to hold the handle to an outstanding sync or async clock callback.">Gst::ClockID</a> id with the given slot. </p>
<p>When passing a <a class="el" href="classGst_1_1ClockID.html" title="A datatype to hold the handle to an outstanding sync or async clock callback.">Gst::ClockID</a> with an invalid time to this function, the slot will be called immediatly with a time set to <a class="el" href="namespaceGst.html#a07ca62fa6d891070ab6d46c45cd388f1" title="Constant to define an undefined clock time.">Gst::CLOCK_TIME_NONE</a>. The slot will be called when the time of id has been reached.</p>
<dl><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td valign="top"></td><td valign="top"><em>slot</em> </td><td>The slot to callback. </td></tr>
</table>
</dd>
</dl>
<dl class="return"><dt><b>Returns:</b></dt><dd>The result of the non blocking wait. MT safe. </dd></dl>
</div>
</div>
<hr/><h2>Friends And Related Function Documentation</h2>
<a class="anchor" id="aba633ba6dde51e71c5e61d0555d836f2"></a><!-- doxytag: member="Gst::ClockID::wrap" ref="aba633ba6dde51e71c5e61d0555d836f2" args="(GstClockEntry *object, bool take_copy=false)" -->
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<div class="memproto">
<table class="memname">
<tr>
<td class="memname"><a class="elRef" href="../../../glibmm-2.4/reference/html/classGlib_1_1RefPtr.html">Glib::RefPtr</a>< <a class="el" href="classGst_1_1ClockID.html">Gst::ClockID</a> > wrap </td>
<td>(</td>
<td class="paramtype">GstClockEntry * </td>
<td class="paramname"> <em>object</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">bool </td>
<td class="paramname"> <em>take_copy</em> = <code>false</code></td><td> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td><td><code> [related]</code></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>A <a class="elRef" href="../../../glibmm-2.4/reference/html/namespaceGlib.html#a671306f4a3a0cae5ab4d7a9d54886592">Glib::wrap()</a> method for this object. </p>
<dl><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td valign="top"></td><td valign="top"><em>object</em> </td><td>The C instance. </td></tr>
<tr><td valign="top"></td><td valign="top"><em>take_copy</em> </td><td>False if the result should take ownership of the C instance. True if it should take a new copy or ref. </td></tr>
</table>
</dd>
</dl>
<dl class="return"><dt><b>Returns:</b></dt><dd>A C++ instance that wraps this C instance. </dd></dl>
</div>
</div>
<hr/>The documentation for this class was generated from the following file:<ul>
<li>gstreamermm/clock.h</li>
</ul>
</div>
<hr size="1"/><address style="text-align: right;"><small>Generated on Mon Sep 21 22:32:54 2009 for gstreamermm by 
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<img class="footer" src="doxygen.png" alt="doxygen"/></a> 1.6.1 </small></address>
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