</td></tr><tr><td><p><span class="term"><a name="GDK-INPUT-WRITE:CAPS"></a><code class="literal">GDK_INPUT_WRITE</code></span></p></td><td>the file descriptor has become available for writing.</td></tr><tr><td><p><span class="term"><a name="GDK-INPUT-EXCEPTION:CAPS"></a><code class="literal">GDK_INPUT_EXCEPTION</code></span></p></td><td>an exception was raised on the file descriptor.</td></tr></tbody></table></div></div><hr><div class="refsect2" lang="en"><a name="id3285323"></a><h3><a name="GdkInputFunction"></a>GdkInputFunction ()</h3><a class="indexterm" name="id3285336"></a><pre class="programlisting">void                (*GdkInputFunction)                 (<ahref="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gpointer">gpointer</a> data,                                                         <ahref="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint">gint</a> source,                                                         <a class="link" href="gdk-Input.html#GdkInputCondition">GdkInputCondition</a> condition);</pre><p>A callback function that will be called when some conditionoccurs.</p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><p><span class="term"><em class="parameter"><code>data</code></em>&#160;:</span></p></td><td>the user data passed to <a class="link" href="gdk-Input.html#gdk-input-add"><code class="function">gdk_input_add()</code></a> or <a class="link" href="gdk-Input.html#gdk-input-add-full"><code class="function">gdk_input_add_full()</code></a>.</td></tr><tr><td><p><span class="term"><em class="parameter"><code>source</code></em>&#160;:</span></p></td><td>the source where the condition occurred.</td></tr><tr><td><p><span class="term"><em class="parameter"><code>condition</code></em>&#160;:</span></p></td><td>the triggering condition.</td></tr></tbody></table></div></div><hr><div class="refsect2" lang="en"><a name="id3285450"></a><h3><a name="GdkDestroyNotify"></a>GdkDestroyNotify ()</h3><a class="indexterm" name="id3285462"></a><pre class="programlisting">void                (*GdkDestroyNotify)                 (<ahref="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gpointer">gpointer</a> data);</pre><p>A callback function called when a piece of user data is no longer being stored by GDK. Will typically free thestructure or object that <em class="parameter"><code>data</code></em> points to.</p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><p><span class="term"><em class="parameter"><code>data</code></em>&#160;:</span></p></td><td>the user data.</td></tr></tbody></table></div></div><hr><div class="refsect2" lang="en"><a name="id3285517"></a><h3><a name="gdk-input-add"></a>gdk_input_add ()</h3><a class="indexterm" name="id3285533"></a><pre class="programlisting"><ahref="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint">gint</a>                gdk_input_add                       (<ahref="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint">gint</a> source,                                                         <a class="link" href="gdk-Input.html#GdkInputCondition">GdkInputCondition</a> condition,                                                         <a class="link" href="gdk-Input.html#GdkInputFunction">GdkInputFunction</a> function,                                                         <ahref="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gpointer">gpointer</a> data);</pre><div class="warning" style="margin-left: 0.5in; margin-right: 0.5in;"><h3 class="title">Warning</h3><p><code class="literal">gdk_input_add</code> is deprecated and should not be used in newly-written code.</p></div><p>Establish a callback when a condition becomes true ona file descriptor.</p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><p><span class="term"><em class="parameter"><code>source</code></em>&#160;:</span></p></td><td>a file descriptor.</td></tr><tr><td><p><span class="term"><em class="parameter"><code>condition</code></em>&#160;:</span></p></td><td>the condition.</td></tr><tr><td><p><span class="term"><em class="parameter"><code>function</code></em>&#160;:</span></p></td><td>the callback function.</td></tr><tr><td><p><span class="term"><em class="parameter"><code>data</code></em>&#160;:</span></p></td><td>callback data passed to <em class="parameter"><code>function</code></em>.</td></tr><tr><td><p><span class="term"><span class="emphasis"><em>Returns</em></span>&#160;:</span></p></td><td>a tag that can later be used as an argument to <a class="link" href="gdk-Input.html#gdk-input-remove"><code class="function">gdk_input_remove()</code></a>.</td></tr></tbody></table></div></div><hr><div class="refsect2" lang="en"><a name="id3285687"></a><h3><a name="gdk-input-remove"></a>gdk_input_remove ()</h3><a class="indexterm" name="id3285702"></a><pre class="programlisting">void                gdk_input_remove                    (<ahref="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint">gint</a> tag);</pre><div class="warning" style="margin-left: 0.5in; margin-right: 0.5in;"><h3 class="title">Warning</h3><p><code class="literal">gdk_input_remove</code> is deprecated and should not be used in newly-written code.</p></div><p>Remove a callback added with <a class="link" href="gdk-Input.html#gdk-input-add"><code class="function">gdk_input_add()</code></a> or <a class="link" href="gdk-Input.html#gdk-input-add-full"><code class="function">gdk_input_add_full()</code></a>.</p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><p><span class="term"><em class="parameter"><code>tag</code></em>&#160;:</span></p></td><td>the tag returned when the callback was set up.</td></tr></tbody></table></div></div></div><div class="refsect1" lang="en"><a name="id3285785"></a><h2>See Also</h2><p></p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><p><span class="term"><ahref="/usr/share/gtk-doc/html/glib/glib-The-Main-Event-Loop.html">GLib Main Loop</a></span></p></td><td><p>The main loop in which input callbacks run.</p></td></tr><tr><td><p><span class="term"><ahref="/usr/share/gtk-doc/html/glib/glib-IO-Channels.html">IO Channels</a></span></p></td><td><p>A newer and more flexible way of doing IOcallbacks.</p></td></tr></tbody></table></div><p></p></div><div class="refsect1" lang="en"><a name="id3285832"></a><div class="refsect2" lang="en"><a name="id3285833"></a></div><hr><div class="refsect2" lang="en"><a name="id3285834"></a></div></div></div></body></html>