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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
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<title>Connection Balance interface: telepathy-glib API Reference Manual</title>
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<a href="#" class="shortcut">Top</a><span id="nav_description"> <span class="dim">|</span>
<a href="#telepathy-glib-connection-balance.description" class="shortcut">Description</a></span>
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<div class="refentry">
<a name="telepathy-glib-connection-balance"></a><div class="titlepage"></div>
<div class="refnamediv"><table width="100%"><tr>
<td valign="top">
<h2><span class="refentrytitle"><a name="telepathy-glib-connection-balance.top_of_page"></a>Connection Balance interface</span></h2>
<p>Connection Balance interface — client-side wrappers for the Balance interface</p>
</td>
<td class="gallery_image" valign="top" align="right"></td>
</tr></table></div>
<div class="refsect1">
<a name="telepathy-glib-connection-balance.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">
<a class="link" href="telepathy-glib-proxy.html#TpProxySignalConnection" title="TpProxySignalConnection"><span class="returnvalue">TpProxySignalConnection</span></a> *
</td>
<td class="function_name">
<a class="link" href="telepathy-glib-connection-balance.html#tp-cli-connection-interface-balance-connect-to-balance-changed" title="tp_cli_connection_interface_balance_connect_to_balance_changed ()">tp_cli_connection_interface_balance_connect_to_balance_changed</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">void</span>
</td>
<td class="function_name">
<span class="c_punctuation">(</span><a class="link" href="telepathy-glib-connection-balance.html#tp-cli-connection-interface-balance-signal-callback-balance-changed" title="tp_cli_connection_interface_balance_signal_callback_balance_changed ()">*tp_cli_connection_interface_balance_signal_callback_balance_changed</a><span class="c_punctuation">)</span> <span class="c_punctuation">()</span>
</td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect1">
<a name="telepathy-glib-connection-balance.includes"></a><h2>Includes</h2>
<pre class="synopsis">#include <telepathy-glib/telepathy-glib-dbus.h>
</pre>
</div>
<div class="refsect1">
<a name="telepathy-glib-connection-balance.description"></a><h2>Description</h2>
<p>In some real-time communication services the user can pay for certain
services, typically calls to the PSTN, in advance. In (at least) Skype,
it's possible to query the current balance in a machine-readable way.</p>
<p>This section documents the auto-generated C wrappers for the
Balance interface, used with <a class="link" href="telepathy-glib-connection.html#TpConnection"><span class="type">TpConnection</span></a> objects.</p>
</div>
<div class="refsect1">
<a name="telepathy-glib-connection-balance.functions_details"></a><h2>Functions</h2>
<div class="refsect2">
<a name="tp-cli-connection-interface-balance-connect-to-balance-changed"></a><h3>tp_cli_connection_interface_balance_connect_to_balance_changed ()</h3>
<pre class="programlisting"><a class="link" href="telepathy-glib-proxy.html#TpProxySignalConnection" title="TpProxySignalConnection"><span class="returnvalue">TpProxySignalConnection</span></a> *
tp_cli_connection_interface_balance_connect_to_balance_changed
(<em class="parameter"><code><a class="link" href="telepathy-glib-connection.html#TpConnection"><span class="type">TpConnection</span></a> *proxy</code></em>,
<em class="parameter"><code><a class="link" href="telepathy-glib-connection-balance.html#tp-cli-connection-interface-balance-signal-callback-balance-changed" title="tp_cli_connection_interface_balance_signal_callback_balance_changed ()"><span class="type">tp_cli_connection_interface_balance_signal_callback_balance_changed</span></a> callback</code></em>,
<em class="parameter"><code><span class="type">gpointer</span> user_data</code></em>,
<em class="parameter"><code><span class="type">GDestroyNotify</span> destroy</code></em>,
<em class="parameter"><code><span class="type">GObject</span> *weak_object</code></em>,
<em class="parameter"><code><span class="type">GError</span> **error</code></em>);</pre>
<p>Connect a handler to the signal BalanceChanged.</p>
<p><tp:docstring xmlns="http://www.w3.org/1999/xhtml"> <p>Emitted when the user's balance has changed.</p></p>
<div class="refsect3">
<a name="tp-cli-connection-interface-balance-connect-to-balance-changed.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>proxy</p></td>
<td class="parameter_description"><p>A <a class="link" href="telepathy-glib-connection.html#TpConnection"><span class="type">TpConnection</span></a> or subclass</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>callback</p></td>
<td class="parameter_description"><p>Callback to be called when the signal is
received</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>user_data</p></td>
<td class="parameter_description"><p>User-supplied data for the callback</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>destroy</p></td>
<td class="parameter_description"><p>Destructor for the user-supplied data, which
will be called when this signal is disconnected, or
before this function returns <code class="literal">NULL</code></p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>weak_object</p></td>
<td class="parameter_description"><p>A <span class="type">GObject</span> which will be weakly referenced;
if it is destroyed, this callback will automatically be
disconnected</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>error</p></td>
<td class="parameter_description"><p>If not <code class="literal">NULL</code>, used to raise an error if <code class="literal">NULL</code> is
returned</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect3">
<a name="tp-cli-connection-interface-balance-connect-to-balance-changed.returns"></a><h4>Returns</h4>
<p> a <a class="link" href="telepathy-glib-proxy.html#TpProxySignalConnection" title="TpProxySignalConnection"><span class="type">TpProxySignalConnection</span></a> containing all of the
above, which can be used to disconnect the signal; or
<code class="literal">NULL</code> if the proxy does not have the desired interface
or has become invalid.</p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="tp-cli-connection-interface-balance-signal-callback-balance-changed"></a><h3>tp_cli_connection_interface_balance_signal_callback_balance_changed ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
<span class="c_punctuation">(</span>*tp_cli_connection_interface_balance_signal_callback_balance_changed<span class="c_punctuation">)</span>
(<em class="parameter"><code><a class="link" href="telepathy-glib-connection.html#TpConnection"><span class="type">TpConnection</span></a> *proxy</code></em>,
<em class="parameter"><code>const <span class="type">GValueArray</span> *arg_Balance</code></em>,
<em class="parameter"><code><span class="type">gpointer</span> user_data</code></em>,
<em class="parameter"><code><span class="type">GObject</span> *weak_object</code></em>);</pre>
<p>Represents the signature of a callback for the signal BalanceChanged.</p>
<div class="refsect3">
<a name="tp-cli-connection-interface-balance-signal-callback-balance-changed.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>proxy</p></td>
<td class="parameter_description"><p>The proxy on which <a class="link" href="telepathy-glib-connection-balance.html#tp-cli-connection-interface-balance-connect-to-balance-changed" title="tp_cli_connection_interface_balance_connect_to_balance_changed ()"><code class="function">tp_cli_connection_interface_balance_connect_to_balance_changed()</code></a>
was called</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>arg_Balance</p></td>
<td class="parameter_description"><p><tp:docstring xmlns="http://www.w3.org/1999/xhtml"> <p>The new value of the <tp:member-ref>AccountBalance</tp:member-ref> property.</p></p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>user_data</p></td>
<td class="parameter_description"><p>User-supplied data</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>weak_object</p></td>
<td class="parameter_description"><p>User-supplied weakly referenced object</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
</div>
</div>
<div class="refsect1">
<a name="telepathy-glib-connection-balance.see-also"></a><h2>See Also</h2>
<p><a class="link" href="telepathy-glib-connection.html#TpConnection"><span class="type">TpConnection</span></a></p>
</div>
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