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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 | <html><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8"><title>glib.MainLoop</title><link rel="stylesheet" type="text/css" href="style.css"><meta name="generator" content="DocBook XSL Stylesheets V1.76.1"><link rel="home" href="index.html" title="PyGObject Reference Manual"><link rel="up" href="glib-class-reference.html" title="PyGlibClass Reference"><link rel="prev" href="class-glibmaincontext.html" title="glib.MainContext"><link rel="next" href="glib-functions.html" title="glib Functions"></head><body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">glib.MainLoop</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="class-glibmaincontext.html">Prev</a> </td><th width="60%" align="center">PyGlibClass Reference</th><td width="20%" align="right"> <a accesskey="n" href="glib-functions.html">Next</a></td></tr></table><hr></div><div class="refentry" title="glib.MainLoop"><a name="class-glibmainloop"></a><div class="titlepage"></div><div class="refnamediv"><h2>glib.MainLoop</h2><p>glib.MainLoop — an object representing the main event loop of a PyGTK
application.</p></div><div class="refsect1" title="Synopsis"><a name="id394804"></a><h2>Synopsis</h2><table bgcolor="#D0E0F0" width="100%"><tr><td><pre class="classsynopsis">class <span class="ooclass"><span class="classname">glib.MainLoop</span></span>:
<code class="constructorsynopsis"> <span class="methodname"><a class="link" href="class-glibmainloop.html#constructor-glibmainloop" title="Constructor">glib.MainLoop</a></span>(<span class="methodparam"><span class="parameter"><em class="parameter"><code>context</code></em></span><span class="initializer">=None</span></span>, <span class="methodparam"><span class="parameter"><em class="parameter"><code>is_running</code></em></span><span class="initializer">=0</span></span>)</code><br><code class="methodsynopsis"> def <span class="methodname"><a class="link" href="class-glibmainloop.html#method-glibmainloop--get-context" title="glib.MainLoop.get_context">get_context</a></span>()</code><br><code class="methodsynopsis"> def <span class="methodname"><a class="link" href="class-glibmainloop.html#method-glibmainloop--is-running" title="glib.MainLoop.is_running">is_running</a></span>()</code><br><code class="methodsynopsis"> def <span class="methodname"><a class="link" href="class-glibmainloop.html#method-glibmainloop--quit" title="glib.MainLoop.quit">quit</a></span>()</code><br><code class="methodsynopsis"> def <span class="methodname"><a class="link" href="class-glibmainloop.html#method-glibmainloop--run" title="glib.MainLoop.run">run</a></span>()</code><br></pre></td></tr></table></div><div class="refsect1" title="Ancestry"><a name="id395291"></a><h2>Ancestry</h2><pre class="synopsis">+-- <a class="link" href="class-glibmainloop.html" title="glib.MainLoop">glib.MainLoop</a>
</pre></div><div class="refsect1" title="Description"><a name="id394716"></a><h2>Description</h2><p><a class="link" href="class-glibmainloop.html" title="glib.MainLoop"><code class="classname">glib.MainLoop</code></a>
represents a main event loop. A <a class="link" href="class-glibmainloop.html" title="glib.MainLoop"><code class="classname">glib.MainLoop</code></a>
is created with the <a class="link" href="class-glibmainloop.html#constructor-glibmainloop" title="Constructor">glib.MainLoop</a>()
constructor. After adding the initial event sources, the <a class="link" href="class-glibmainloop.html#method-glibmainloop--run" title="glib.MainLoop.run"><code class="methodname">run</code>()</a>
method is called. This continuously checks for new events from each of the
event sources and dispatches them. Finally, the processing of an event from
one of the sources leads to a call to the <a class="link" href="class-glibmainloop.html#method-glibmainloop--quit" title="glib.MainLoop.quit"><code class="methodname">quit</code>()</a>
method to exit the main loop, and the <a class="link" href="class-glibmainloop.html#method-glibmainloop--run" title="glib.MainLoop.run"><code class="methodname">run</code>()</a>
method returns.</p><p>It is possible to create new instances of <a class="link" href="class-glibmainloop.html" title="glib.MainLoop"><code class="classname">glib.MainLoop</code></a>
recursively. This is often used in <code class="literal">PyGTK</code> applications
when showing modal dialog boxes. Note that event sources are associated with
a particular <a class="link" href="class-glibmaincontext.html" title="glib.MainContext"><code class="classname">glib.MainContext</code></a>,
and will be checked and dispatched for all main loops associated with that
<a class="link" href="class-glibmaincontext.html" title="glib.MainContext"><code class="classname">glib.MainContext</code></a>.</p><p><code class="literal">PyGTK</code> contains wrappers of some of these
functions, e.g. the <PYGTKDOCLINK HREF="function-gtk--main"><code class="function">gtk.main</code>()</PYGTKDOCLINK>, <PYGTKDOCLINK HREF="function-gtk--main-quit"><code class="function">gtk.main_quit</code>()</PYGTKDOCLINK>
and <PYGTKDOCLINK HREF="function-gtk--events-pending"><code class="function">gtk.events_pending</code>()</PYGTKDOCLINK>
functions.</p></div><div class="refsect1" title="Constructor"><a name="constructor-glibmainloop"></a><h2>Constructor</h2><pre class="programlisting"><code class="constructorsynopsis"> <span class="methodname">glib.MainLoop</span>(<span class="methodparam"><span class="parameter"><em class="parameter"><code>context</code></em></span><span class="initializer">=None</span></span>, <span class="methodparam"><span class="parameter"><em class="parameter"><code>is_running</code></em></span><span class="initializer">=None</span></span>)</code></pre><table border="0" width="100%" bgcolor="#FFECCE"><col align="left" valign="top" width="0*"><tbody><tr><td><p><span class="term"><em class="parameter"><code>context</code></em> :</span></p></td><td>a <a class="link" href="class-glibmaincontext.html" title="glib.MainContext"><code class="classname">glib.MainContext</code></a>
or <code class="literal">None</code> to use the default
context.</td></tr><tr><td><p><span class="term"><em class="parameter"><code>is_running</code></em> :</span></p></td><td>if <code class="literal">True</code> indicates that the
loop is running. This is not very important since calling the <a class="link" href="class-glibmainloop.html#method-glibmainloop--run" title="glib.MainLoop.run"><code class="methodname">run</code>()</a>
method will set this to <code class="literal">True</code>
anyway.</td></tr><tr><td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td><td>a new <a class="link" href="class-glibmainloop.html" title="glib.MainLoop"><code class="classname">glib.MainLoop</code></a>
object.</td></tr></tbody></table><p>Creates a new <a class="link" href="class-glibmainloop.html" title="glib.MainLoop"><code class="classname">glib.MainLoop</code></a>
object.</p></div><div class="refsect1" title="Methods"><a name="id385752"></a><h2>Methods</h2><div class="refsect2" title="glib.MainLoop.get_context"><a name="method-glibmainloop--get-context"></a><h3>glib.MainLoop.get_context</h3><pre class="programlisting"><code class="methodsynopsis"> def <span class="methodname">get_context</span>()</code></pre><table border="0" width="100%" bgcolor="#FFECCE"><col align="left" valign="top" width="0*"><tbody><tr><td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td><td>the <a class="link" href="class-glibmaincontext.html" title="glib.MainContext"><code class="classname">glib.MainContext</code></a>
the mainloop is associated with</td></tr></tbody></table><p>The <code class="methodname">get_context</code>() method returns the
<a class="link" href="class-glibmaincontext.html" title="glib.MainContext"><code class="classname">glib.MainContext</code></a>
that the mainloop was created with.</p></div><div class="refsect2" title="glib.MainLoop.is_running"><a name="method-glibmainloop--is-running"></a><h3>glib.MainLoop.is_running</h3><pre class="programlisting"><code class="methodsynopsis"> def <span class="methodname">is_running</span>()</code></pre><table border="0" width="100%" bgcolor="#FFECCE"><col align="left" valign="top" width="0*"><tbody><tr><td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td><td><code class="literal">True</code> if the mainloop is
currently being run.</td></tr></tbody></table><p>The <code class="methodname">is_running</code>() method checks to see
if the mainloop is currently being run via the <a class="link" href="class-glibmainloop.html#method-glibmainloop--run" title="glib.MainLoop.run"><code class="methodname">run</code>()</a>
method.</p></div><div class="refsect2" title="glib.MainLoop.quit"><a name="method-glibmainloop--quit"></a><h3>glib.MainLoop.quit</h3><pre class="programlisting"><code class="methodsynopsis"> def <span class="methodname">quit</span>()</code></pre><p>The <code class="methodname">quit</code>() method stops the mainloop
from running. Any subsequent calls to the <a class="link" href="class-glibmainloop.html#method-glibmainloop--run" title="glib.MainLoop.run"><code class="methodname">run</code>()</a>
method will return immediately.</p></div><div class="refsect2" title="glib.MainLoop.run"><a name="method-glibmainloop--run"></a><h3>glib.MainLoop.run</h3><pre class="programlisting"><code class="methodsynopsis"> def <span class="methodname">run</span>()</code></pre><p>The <code class="methodname">run</code>() method runs a mainloop until
the <a class="link" href="class-glibmainloop.html#method-glibmainloop--quit" title="glib.MainLoop.quit"><code class="methodname">quit</code>()</a>
method is called. If this is called for the thread of the loop's <a class="link" href="class-glibmaincontext.html" title="glib.MainContext"><code class="classname">glib.MainContext</code></a>,
it will process events from the loop, otherwise it will simply wait.</p></div></div></div><div class="navfooter"><hr><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="class-glibmaincontext.html">Prev</a> </td><td width="20%" align="center"><a accesskey="u" href="glib-class-reference.html">Up</a></td><td width="40%" align="right"> <a accesskey="n" href="glib-functions.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top">glib.MainContext </td><td width="20%" align="center"><a accesskey="h" href="index.html">Home</a></td><td width="40%" align="right" valign="top"> glib Functions</td></tr></table></div></body></html>
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