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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
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<title>Input: GDK 2 Reference Manual</title>
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<td width="100%" align="left" class="shortcuts">
<a href="#" class="shortcut">Top</a><span id="nav_description"> <span class="dim">|</span>
<a href="#gdk2-Input.description" class="shortcut">Description</a></span>
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<div class="refentry">
<a name="gdk2-Input"></a><div class="titlepage"></div>
<div class="refnamediv"><table width="100%"><tr>
<td valign="top">
<h2><span class="refentrytitle"><a name="gdk2-Input.top_of_page"></a>Input</span></h2>
<p>Input</p>
</td>
<td class="gallery_image" valign="top" align="right"></td>
</tr></table></div>
<div class="refsect1">
<a name="gdk2-Input.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">
<span class="returnvalue">gint</span>
</td>
<td class="function_name">
<a class="link" href="gdk2-Input.html#gdk-input-add-full" title="gdk_input_add_full ()">gdk_input_add_full</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="gdk2-Input.html#GdkInputFunction" title="GdkInputFunction ()">*GdkInputFunction</a><span class="c_punctuation">)</span> <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="gdk2-Input.html#GdkDestroyNotify" title="GdkDestroyNotify ()">*GdkDestroyNotify</a><span class="c_punctuation">)</span> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">gint</span>
</td>
<td class="function_name">
<a class="link" href="gdk2-Input.html#gdk-input-add" title="gdk_input_add ()">gdk_input_add</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">void</span>
</td>
<td class="function_name">
<a class="link" href="gdk2-Input.html#gdk-input-remove" title="gdk_input_remove ()">gdk_input_remove</a> <span class="c_punctuation">()</span>
</td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect1">
<a name="gdk2-Input.other"></a><h2>Types and Values</h2>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="other_proto_type">
<col class="other_proto_name">
</colgroup>
<tbody><tr>
<td class="datatype_keyword">enum</td>
<td class="function_name"><a class="link" href="gdk2-Input.html#GdkInputCondition" title="enum GdkInputCondition">GdkInputCondition</a></td>
</tr></tbody>
</table></div>
</div>
<div class="refsect1">
<a name="gdk2-Input.includes"></a><h2>Includes</h2>
<pre class="synopsis">#include <gdk/gdk.h>
</pre>
</div>
<div class="refsect1">
<a name="gdk2-Input.description"></a><h2>Description</h2>
</div>
<div class="refsect1">
<a name="gdk2-Input.functions_details"></a><h2>Functions</h2>
<div class="refsect2">
<a name="gdk-input-add-full"></a><h3>gdk_input_add_full ()</h3>
<pre class="programlisting"><span class="returnvalue">gint</span>
gdk_input_add_full (<em class="parameter"><code><span class="type">gint</span> source</code></em>,
<em class="parameter"><code><a class="link" href="gdk2-Input.html#GdkInputCondition" title="enum GdkInputCondition"><span class="type">GdkInputCondition</span></a> condition</code></em>,
<em class="parameter"><code><a class="link" href="gdk2-Input.html#GdkInputFunction" title="GdkInputFunction ()"><span class="type">GdkInputFunction</span></a> function</code></em>,
<em class="parameter"><code><span class="type">gpointer</span> data</code></em>,
<em class="parameter"><code><span class="type">GDestroyNotify</span> destroy</code></em>);</pre>
<div class="warning">
<p><code class="literal">gdk_input_add_full</code> has been deprecated since version 2.14 and should not be used in newly-written code.</p>
<p>Use <code class="function">g_io_add_watch_full()</code> on a <span class="type">GIOChannel</span></p>
</div>
<p>Establish a callback when a condition becomes true on
a file descriptor.</p>
<div class="refsect3">
<a name="gdk-input-add-full.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>source</p></td>
<td class="parameter_description"><p>a file descriptor.</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>condition</p></td>
<td class="parameter_description"><p>the condition.</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>function</p></td>
<td class="parameter_description"><p>the callback function.</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>data</p></td>
<td class="parameter_description"><p>callback data passed to <em class="parameter"><code>function</code></em>
.</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>destroy</p></td>
<td class="parameter_description"><p>callback function to call with <em class="parameter"><code>data</code></em>
when the input
handler is removed.</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect3">
<a name="gdk-input-add-full.returns"></a><h4>Returns</h4>
<p> a tag that can later be used as an argument to
<a class="link" href="gdk2-Input.html#gdk-input-remove" title="gdk_input_remove ()"><code class="function">gdk_input_remove()</code></a>.</p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="GdkInputFunction"></a><h3>GdkInputFunction ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
<span class="c_punctuation">(</span>*GdkInputFunction<span class="c_punctuation">)</span> (<em class="parameter"><code><span class="type">gpointer</span> data</code></em>,
<em class="parameter"><code><span class="type">gint</span> source</code></em>,
<em class="parameter"><code><a class="link" href="gdk2-Input.html#GdkInputCondition" title="enum GdkInputCondition"><span class="type">GdkInputCondition</span></a> condition</code></em>);</pre>
</div>
<hr>
<div class="refsect2">
<a name="GdkDestroyNotify"></a><h3>GdkDestroyNotify ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
<span class="c_punctuation">(</span>*GdkDestroyNotify<span class="c_punctuation">)</span> (<em class="parameter"><code><span class="type">gpointer</span> data</code></em>);</pre>
<div class="warning"><p><code class="literal">GdkDestroyNotify</code> is deprecated and should not be used in newly-written code.</p></div>
</div>
<hr>
<div class="refsect2">
<a name="gdk-input-add"></a><h3>gdk_input_add ()</h3>
<pre class="programlisting"><span class="returnvalue">gint</span>
gdk_input_add (<em class="parameter"><code><span class="type">gint</span> source</code></em>,
<em class="parameter"><code><a class="link" href="gdk2-Input.html#GdkInputCondition" title="enum GdkInputCondition"><span class="type">GdkInputCondition</span></a> condition</code></em>,
<em class="parameter"><code><a class="link" href="gdk2-Input.html#GdkInputFunction" title="GdkInputFunction ()"><span class="type">GdkInputFunction</span></a> function</code></em>,
<em class="parameter"><code><span class="type">gpointer</span> data</code></em>);</pre>
<div class="warning">
<p><code class="literal">gdk_input_add</code> has been deprecated since version 2.14 and should not be used in newly-written code.</p>
<p>Use <code class="function">g_io_add_watch()</code> on a <span class="type">GIOChannel</span></p>
</div>
<p>Establish a callback when a condition becomes true on
a file descriptor.</p>
<div class="refsect3">
<a name="gdk-input-add.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>source</p></td>
<td class="parameter_description"><p>a file descriptor.</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>condition</p></td>
<td class="parameter_description"><p>the condition.</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>function</p></td>
<td class="parameter_description"><p>the callback function.</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>data</p></td>
<td class="parameter_description"><p>callback data passed to <em class="parameter"><code>function</code></em>
.</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect3">
<a name="gdk-input-add.returns"></a><h4>Returns</h4>
<p> a tag that can later be used as an argument to
<a class="link" href="gdk2-Input.html#gdk-input-remove" title="gdk_input_remove ()"><code class="function">gdk_input_remove()</code></a>.</p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gdk-input-remove"></a><h3>gdk_input_remove ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
gdk_input_remove (<em class="parameter"><code><span class="type">gint</span> tag</code></em>);</pre>
<div class="warning"><p><code class="literal">gdk_input_remove</code> is deprecated and should not be used in newly-written code.</p></div>
</div>
</div>
<div class="refsect1">
<a name="gdk2-Input.other_details"></a><h2>Types and Values</h2>
<div class="refsect2">
<a name="GdkInputCondition"></a><h3>enum GdkInputCondition</h3>
<div class="refsect3">
<a name="GdkInputCondition.members"></a><h4>Members</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="300px" class="enum_members_name">
<col class="enum_members_description">
<col width="200px" class="enum_members_annotations">
</colgroup>
<tbody>
<tr>
<td class="enum_member_name"><p><a name="GDK-INPUT-READ:CAPS"></a>GDK_INPUT_READ</p></td>
<td> </td>
<td> </td>
</tr>
<tr>
<td class="enum_member_name"><p><a name="GDK-INPUT-WRITE:CAPS"></a>GDK_INPUT_WRITE</p></td>
<td> </td>
<td> </td>
</tr>
<tr>
<td class="enum_member_name"><p><a name="GDK-INPUT-EXCEPTION:CAPS"></a>GDK_INPUT_EXCEPTION</p></td>
<td> </td>
<td> </td>
</tr>
</tbody>
</table></div>
</div>
</div>
</div>
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