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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
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<title>GtkScrollable: GTK+ 3 Reference Manual</title>
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<table class="navigation" id="top" width="100%" summary="Navigation header" cellpadding="2" cellspacing="5"><tr valign="middle">
<td width="100%" align="left" class="shortcuts">
<a href="#" class="shortcut">Top</a><span id="nav_description"> <span class="dim">|</span>
<a href="#GtkScrollable.description" class="shortcut">Description</a></span><span id="nav_hierarchy"> <span class="dim">|</span>
<a href="#GtkScrollable.object-hierarchy" class="shortcut">Object Hierarchy</a></span><span id="nav_prerequisites"> <span class="dim">|</span>
<a href="#GtkScrollable.prerequisites" class="shortcut">Prerequisites</a></span><span id="nav_implementations"> <span class="dim">|</span>
<a href="#GtkScrollable.implementations" class="shortcut">Known Implementations</a></span><span id="nav_properties"> <span class="dim">|</span>
<a href="#GtkScrollable.properties" class="shortcut">Properties</a></span>
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<td><a accesskey="h" href="index.html"><img src="home.png" width="16" height="16" border="0" alt="Home"></a></td>
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<div class="refentry">
<a name="GtkScrollable"></a><div class="titlepage"></div>
<div class="refnamediv"><table width="100%"><tr>
<td valign="top">
<h2><span class="refentrytitle"><a name="GtkScrollable.top_of_page"></a>GtkScrollable</span></h2>
<p>GtkScrollable — An interface for scrollable widgets</p>
</td>
<td class="gallery_image" valign="top" align="right"></td>
</tr></table></div>
<div class="refsect1">
<a name="GtkScrollable.functions"></a><h2>Functions</h2>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="functions_return">
<col class="functions_name">
</colgroup>
<tbody>
<tr>
<td class="function_type">
<a class="link" href="GtkAdjustment.html" title="GtkAdjustment"><span class="returnvalue">GtkAdjustment</span></a> *
</td>
<td class="function_name">
<a class="link" href="GtkScrollable.html#gtk-scrollable-get-hadjustment" title="gtk_scrollable_get_hadjustment ()">gtk_scrollable_get_hadjustment</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="GtkScrollable.html#gtk-scrollable-set-hadjustment" title="gtk_scrollable_set_hadjustment ()">gtk_scrollable_set_hadjustment</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a class="link" href="GtkAdjustment.html" title="GtkAdjustment"><span class="returnvalue">GtkAdjustment</span></a> *
</td>
<td class="function_name">
<a class="link" href="GtkScrollable.html#gtk-scrollable-get-vadjustment" title="gtk_scrollable_get_vadjustment ()">gtk_scrollable_get_vadjustment</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="GtkScrollable.html#gtk-scrollable-set-vadjustment" title="gtk_scrollable_set_vadjustment ()">gtk_scrollable_set_vadjustment</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a class="link" href="GtkScrollable.html#GtkScrollablePolicy" title="enum GtkScrollablePolicy"><span class="returnvalue">GtkScrollablePolicy</span></a>
</td>
<td class="function_name">
<a class="link" href="GtkScrollable.html#gtk-scrollable-get-hscroll-policy" title="gtk_scrollable_get_hscroll_policy ()">gtk_scrollable_get_hscroll_policy</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="GtkScrollable.html#gtk-scrollable-set-hscroll-policy" title="gtk_scrollable_set_hscroll_policy ()">gtk_scrollable_set_hscroll_policy</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a class="link" href="GtkScrollable.html#GtkScrollablePolicy" title="enum GtkScrollablePolicy"><span class="returnvalue">GtkScrollablePolicy</span></a>
</td>
<td class="function_name">
<a class="link" href="GtkScrollable.html#gtk-scrollable-get-vscroll-policy" title="gtk_scrollable_get_vscroll_policy ()">gtk_scrollable_get_vscroll_policy</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="GtkScrollable.html#gtk-scrollable-set-vscroll-policy" title="gtk_scrollable_set_vscroll_policy ()">gtk_scrollable_set_vscroll_policy</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a href="https://developer.gnome.org/glib/unstable/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>
</td>
<td class="function_name">
<a class="link" href="GtkScrollable.html#gtk-scrollable-get-border" title="gtk_scrollable_get_border ()">gtk_scrollable_get_border</a> <span class="c_punctuation">()</span>
</td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect1">
<a name="GtkScrollable.properties"></a><h2>Properties</h2>
<div class="informaltable"><table class="informaltable" border="0">
<colgroup>
<col width="150px" class="properties_type">
<col width="300px" class="properties_name">
<col width="200px" class="properties_flags">
</colgroup>
<tbody>
<tr>
<td class="property_type">
<a class="link" href="GtkAdjustment.html" title="GtkAdjustment"><span class="type">GtkAdjustment</span></a> *</td>
<td class="property_name"><a class="link" href="GtkScrollable.html#GtkScrollable--hadjustment" title="The “hadjustment” property">hadjustment</a></td>
<td class="property_flags">Read / Write / Construct</td>
</tr>
<tr>
<td class="property_type"><a class="link" href="GtkScrollable.html#GtkScrollablePolicy" title="enum GtkScrollablePolicy"><span class="type">GtkScrollablePolicy</span></a></td>
<td class="property_name"><a class="link" href="GtkScrollable.html#GtkScrollable--hscroll-policy" title="The “hscroll-policy” property">hscroll-policy</a></td>
<td class="property_flags">Read / Write</td>
</tr>
<tr>
<td class="property_type">
<a class="link" href="GtkAdjustment.html" title="GtkAdjustment"><span class="type">GtkAdjustment</span></a> *</td>
<td class="property_name"><a class="link" href="GtkScrollable.html#GtkScrollable--vadjustment" title="The “vadjustment” property">vadjustment</a></td>
<td class="property_flags">Read / Write / Construct</td>
</tr>
<tr>
<td class="property_type"><a class="link" href="GtkScrollable.html#GtkScrollablePolicy" title="enum GtkScrollablePolicy"><span class="type">GtkScrollablePolicy</span></a></td>
<td class="property_name"><a class="link" href="GtkScrollable.html#GtkScrollable--vscroll-policy" title="The “vscroll-policy” property">vscroll-policy</a></td>
<td class="property_flags">Read / Write</td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect1">
<a name="GtkScrollable.other"></a><h2>Types and Values</h2>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="name">
<col class="description">
</colgroup>
<tbody>
<tr>
<td class="datatype_keyword"> </td>
<td class="function_name"><a class="link" href="GtkScrollable.html#GtkScrollable-struct" title="GtkScrollable">GtkScrollable</a></td>
</tr>
<tr>
<td class="datatype_keyword">enum</td>
<td class="function_name"><a class="link" href="GtkScrollable.html#GtkScrollablePolicy" title="enum GtkScrollablePolicy">GtkScrollablePolicy</a></td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect1">
<a name="GtkScrollable.object-hierarchy"></a><h2>Object Hierarchy</h2>
<pre class="screen"> <a href="https://developer.gnome.org/gobject/unstable/GTypeModule.html">GInterface</a>
<span class="lineart">╰──</span> GtkScrollable
</pre>
</div>
<div class="refsect1">
<a name="GtkScrollable.prerequisites"></a><h2>Prerequisites</h2>
<p>
GtkScrollable requires
<a href="https://developer.gnome.org/gobject/unstable/gobject-The-Base-Object-Type.html#GObject-struct">GObject</a>.</p>
</div>
<div class="refsect1">
<a name="GtkScrollable.implementations"></a><h2>Known Implementations</h2>
<p>
GtkScrollable is implemented by
<a class="link" href="GtkIconView.html" title="GtkIconView">GtkIconView</a>, <a class="link" href="GtkLayout.html" title="GtkLayout">GtkLayout</a>, <a class="link" href="GtkTextView.html" title="GtkTextView">GtkTextView</a>, <a class="link" href="GtkToolPalette.html" title="GtkToolPalette">GtkToolPalette</a>, <a class="link" href="GtkTreeView.html" title="GtkTreeView">GtkTreeView</a> and <a class="link" href="GtkViewport.html" title="GtkViewport">GtkViewport</a>.</p>
</div>
<div class="refsect1">
<a name="GtkScrollable.includes"></a><h2>Includes</h2>
<pre class="synopsis">#include <gtk/gtk.h>
</pre>
</div>
<div class="refsect1">
<a name="GtkScrollable.description"></a><h2>Description</h2>
<p><a class="link" href="GtkScrollable.html" title="GtkScrollable"><span class="type">GtkScrollable</span></a> is an interface that is implemented by widgets with native
scrolling ability.</p>
<p>To implement this interface you should override the
<a class="link" href="GtkScrollable.html#GtkScrollable--hadjustment" title="The “hadjustment” property"><span class="type">“hadjustment”</span></a> and <a class="link" href="GtkScrollable.html#GtkScrollable--vadjustment" title="The “vadjustment” property"><span class="type">“vadjustment”</span></a> properties.</p>
<div class="refsect3">
<a name="id-1.3.16.4.10.4"></a><h4>Creating a scrollable widget</h4>
<p>All scrollable widgets should do the following.</p>
<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
<li class="listitem"><p>When a parent widget sets the scrollable child widget’s adjustments,
the widget should populate the adjustments’
<a class="link" href="GtkAdjustment.html#GtkAdjustment--lower" title="The “lower” property"><span class="type">“lower”</span></a>, <a class="link" href="GtkAdjustment.html#GtkAdjustment--upper" title="The “upper” property"><span class="type">“upper”</span></a>,
<a class="link" href="GtkAdjustment.html#GtkAdjustment--step-increment" title="The “step-increment” property"><span class="type">“step-increment”</span></a>, <a class="link" href="GtkAdjustment.html#GtkAdjustment--page-increment" title="The “page-increment” property"><span class="type">“page-increment”</span></a> and
<a class="link" href="GtkAdjustment.html#GtkAdjustment--page-size" title="The “page-size” property"><span class="type">“page-size”</span></a> properties and connect to the
<a class="link" href="GtkAdjustment.html#GtkAdjustment-value-changed" title="The “value-changed” signal"><span class="type">“value-changed”</span></a> signal.</p></li>
<li class="listitem"><p>Because its preferred size is the size for a fully expanded widget,
the scrollable widget must be able to cope with underallocations.
This means that it must accept any value passed to its
<a class="link" href="GtkWidget.html#GtkWidgetClass.size-allocate"><code class="function">GtkWidgetClass.size_allocate()</code></a> function.</p></li>
<li class="listitem"><p>When the parent allocates space to the scrollable child widget,
the widget should update the adjustments’ properties with new values.</p></li>
<li class="listitem"><p>When any of the adjustments emits the <a class="link" href="GtkAdjustment.html#GtkAdjustment-value-changed" title="The “value-changed” signal"><span class="type">“value-changed”</span></a> signal,
the scrollable widget should scroll its contents.</p></li>
</ul></div>
</div>
</div>
<div class="refsect1">
<a name="GtkScrollable.functions_details"></a><h2>Functions</h2>
<div class="refsect2">
<a name="gtk-scrollable-get-hadjustment"></a><h3>gtk_scrollable_get_hadjustment ()</h3>
<pre class="programlisting"><a class="link" href="GtkAdjustment.html" title="GtkAdjustment"><span class="returnvalue">GtkAdjustment</span></a> *
gtk_scrollable_get_hadjustment (<em class="parameter"><code><a class="link" href="GtkScrollable.html" title="GtkScrollable"><span class="type">GtkScrollable</span></a> *scrollable</code></em>);</pre>
<p>Retrieves the <a class="link" href="GtkAdjustment.html" title="GtkAdjustment"><span class="type">GtkAdjustment</span></a> used for horizontal scrolling.</p>
<div class="refsect3">
<a name="gtk-scrollable-get-hadjustment.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>scrollable</p></td>
<td class="parameter_description"><p>a <a class="link" href="GtkScrollable.html" title="GtkScrollable"><span class="type">GtkScrollable</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
<div class="refsect3">
<a name="gtk-scrollable-get-hadjustment.returns"></a><h4>Returns</h4>
<p> horizontal <a class="link" href="GtkAdjustment.html" title="GtkAdjustment"><span class="type">GtkAdjustment</span></a>. </p>
<p><span class="annotation">[<acronym title="Don't free data after the code is done."><span class="acronym">transfer none</span></acronym>]</span></p>
</div>
<p class="since">Since: <a class="link" href="api-index-3-0.html#api-index-3.0">3.0</a></p>
</div>
<hr>
<div class="refsect2">
<a name="gtk-scrollable-set-hadjustment"></a><h3>gtk_scrollable_set_hadjustment ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
gtk_scrollable_set_hadjustment (<em class="parameter"><code><a class="link" href="GtkScrollable.html" title="GtkScrollable"><span class="type">GtkScrollable</span></a> *scrollable</code></em>,
<em class="parameter"><code><a class="link" href="GtkAdjustment.html" title="GtkAdjustment"><span class="type">GtkAdjustment</span></a> *hadjustment</code></em>);</pre>
<p>Sets the horizontal adjustment of the <a class="link" href="GtkScrollable.html" title="GtkScrollable"><span class="type">GtkScrollable</span></a>.</p>
<div class="refsect3">
<a name="gtk-scrollable-set-hadjustment.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>scrollable</p></td>
<td class="parameter_description"><p>a <a class="link" href="GtkScrollable.html" title="GtkScrollable"><span class="type">GtkScrollable</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>hadjustment</p></td>
<td class="parameter_description"><p> a <a class="link" href="GtkAdjustment.html" title="GtkAdjustment"><span class="type">GtkAdjustment</span></a>. </p></td>
<td class="parameter_annotations"><span class="annotation">[<acronym title="NULL is OK, both for passing and for returning."><span class="acronym">allow-none</span></acronym>]</span></td>
</tr>
</tbody>
</table></div>
</div>
<p class="since">Since: <a class="link" href="api-index-3-0.html#api-index-3.0">3.0</a></p>
</div>
<hr>
<div class="refsect2">
<a name="gtk-scrollable-get-vadjustment"></a><h3>gtk_scrollable_get_vadjustment ()</h3>
<pre class="programlisting"><a class="link" href="GtkAdjustment.html" title="GtkAdjustment"><span class="returnvalue">GtkAdjustment</span></a> *
gtk_scrollable_get_vadjustment (<em class="parameter"><code><a class="link" href="GtkScrollable.html" title="GtkScrollable"><span class="type">GtkScrollable</span></a> *scrollable</code></em>);</pre>
<p>Retrieves the <a class="link" href="GtkAdjustment.html" title="GtkAdjustment"><span class="type">GtkAdjustment</span></a> used for vertical scrolling.</p>
<div class="refsect3">
<a name="gtk-scrollable-get-vadjustment.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>scrollable</p></td>
<td class="parameter_description"><p>a <a class="link" href="GtkScrollable.html" title="GtkScrollable"><span class="type">GtkScrollable</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
<div class="refsect3">
<a name="gtk-scrollable-get-vadjustment.returns"></a><h4>Returns</h4>
<p> vertical <a class="link" href="GtkAdjustment.html" title="GtkAdjustment"><span class="type">GtkAdjustment</span></a>. </p>
<p><span class="annotation">[<acronym title="Don't free data after the code is done."><span class="acronym">transfer none</span></acronym>]</span></p>
</div>
<p class="since">Since: <a class="link" href="api-index-3-0.html#api-index-3.0">3.0</a></p>
</div>
<hr>
<div class="refsect2">
<a name="gtk-scrollable-set-vadjustment"></a><h3>gtk_scrollable_set_vadjustment ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
gtk_scrollable_set_vadjustment (<em class="parameter"><code><a class="link" href="GtkScrollable.html" title="GtkScrollable"><span class="type">GtkScrollable</span></a> *scrollable</code></em>,
<em class="parameter"><code><a class="link" href="GtkAdjustment.html" title="GtkAdjustment"><span class="type">GtkAdjustment</span></a> *vadjustment</code></em>);</pre>
<p>Sets the vertical adjustment of the <a class="link" href="GtkScrollable.html" title="GtkScrollable"><span class="type">GtkScrollable</span></a>.</p>
<div class="refsect3">
<a name="gtk-scrollable-set-vadjustment.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>scrollable</p></td>
<td class="parameter_description"><p>a <a class="link" href="GtkScrollable.html" title="GtkScrollable"><span class="type">GtkScrollable</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>vadjustment</p></td>
<td class="parameter_description"><p> a <a class="link" href="GtkAdjustment.html" title="GtkAdjustment"><span class="type">GtkAdjustment</span></a>. </p></td>
<td class="parameter_annotations"><span class="annotation">[<acronym title="NULL is OK, both for passing and for returning."><span class="acronym">allow-none</span></acronym>]</span></td>
</tr>
</tbody>
</table></div>
</div>
<p class="since">Since: <a class="link" href="api-index-3-0.html#api-index-3.0">3.0</a></p>
</div>
<hr>
<div class="refsect2">
<a name="gtk-scrollable-get-hscroll-policy"></a><h3>gtk_scrollable_get_hscroll_policy ()</h3>
<pre class="programlisting"><a class="link" href="GtkScrollable.html#GtkScrollablePolicy" title="enum GtkScrollablePolicy"><span class="returnvalue">GtkScrollablePolicy</span></a>
gtk_scrollable_get_hscroll_policy (<em class="parameter"><code><a class="link" href="GtkScrollable.html" title="GtkScrollable"><span class="type">GtkScrollable</span></a> *scrollable</code></em>);</pre>
<p>Gets the horizontal <a class="link" href="GtkScrollable.html#GtkScrollablePolicy" title="enum GtkScrollablePolicy"><span class="type">GtkScrollablePolicy</span></a>.</p>
<div class="refsect3">
<a name="gtk-scrollable-get-hscroll-policy.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>scrollable</p></td>
<td class="parameter_description"><p>a <a class="link" href="GtkScrollable.html" title="GtkScrollable"><span class="type">GtkScrollable</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
<div class="refsect3">
<a name="gtk-scrollable-get-hscroll-policy.returns"></a><h4>Returns</h4>
<p> The horizontal <a class="link" href="GtkScrollable.html#GtkScrollablePolicy" title="enum GtkScrollablePolicy"><span class="type">GtkScrollablePolicy</span></a>.</p>
</div>
<p class="since">Since: <a class="link" href="api-index-3-0.html#api-index-3.0">3.0</a></p>
</div>
<hr>
<div class="refsect2">
<a name="gtk-scrollable-set-hscroll-policy"></a><h3>gtk_scrollable_set_hscroll_policy ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
gtk_scrollable_set_hscroll_policy (<em class="parameter"><code><a class="link" href="GtkScrollable.html" title="GtkScrollable"><span class="type">GtkScrollable</span></a> *scrollable</code></em>,
<em class="parameter"><code><a class="link" href="GtkScrollable.html#GtkScrollablePolicy" title="enum GtkScrollablePolicy"><span class="type">GtkScrollablePolicy</span></a> policy</code></em>);</pre>
<p>Sets the <a class="link" href="GtkScrollable.html#GtkScrollablePolicy" title="enum GtkScrollablePolicy"><span class="type">GtkScrollablePolicy</span></a> to determine whether
horizontal scrolling should start below the minimum width or
below the natural width.</p>
<div class="refsect3">
<a name="gtk-scrollable-set-hscroll-policy.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>scrollable</p></td>
<td class="parameter_description"><p>a <a class="link" href="GtkScrollable.html" title="GtkScrollable"><span class="type">GtkScrollable</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>policy</p></td>
<td class="parameter_description"><p>the horizontal <a class="link" href="GtkScrollable.html#GtkScrollablePolicy" title="enum GtkScrollablePolicy"><span class="type">GtkScrollablePolicy</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<p class="since">Since: <a class="link" href="api-index-3-0.html#api-index-3.0">3.0</a></p>
</div>
<hr>
<div class="refsect2">
<a name="gtk-scrollable-get-vscroll-policy"></a><h3>gtk_scrollable_get_vscroll_policy ()</h3>
<pre class="programlisting"><a class="link" href="GtkScrollable.html#GtkScrollablePolicy" title="enum GtkScrollablePolicy"><span class="returnvalue">GtkScrollablePolicy</span></a>
gtk_scrollable_get_vscroll_policy (<em class="parameter"><code><a class="link" href="GtkScrollable.html" title="GtkScrollable"><span class="type">GtkScrollable</span></a> *scrollable</code></em>);</pre>
<p>Gets the vertical <a class="link" href="GtkScrollable.html#GtkScrollablePolicy" title="enum GtkScrollablePolicy"><span class="type">GtkScrollablePolicy</span></a>.</p>
<div class="refsect3">
<a name="gtk-scrollable-get-vscroll-policy.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>scrollable</p></td>
<td class="parameter_description"><p>a <a class="link" href="GtkScrollable.html" title="GtkScrollable"><span class="type">GtkScrollable</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
<div class="refsect3">
<a name="gtk-scrollable-get-vscroll-policy.returns"></a><h4>Returns</h4>
<p> The vertical <a class="link" href="GtkScrollable.html#GtkScrollablePolicy" title="enum GtkScrollablePolicy"><span class="type">GtkScrollablePolicy</span></a>.</p>
</div>
<p class="since">Since: <a class="link" href="api-index-3-0.html#api-index-3.0">3.0</a></p>
</div>
<hr>
<div class="refsect2">
<a name="gtk-scrollable-set-vscroll-policy"></a><h3>gtk_scrollable_set_vscroll_policy ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
gtk_scrollable_set_vscroll_policy (<em class="parameter"><code><a class="link" href="GtkScrollable.html" title="GtkScrollable"><span class="type">GtkScrollable</span></a> *scrollable</code></em>,
<em class="parameter"><code><a class="link" href="GtkScrollable.html#GtkScrollablePolicy" title="enum GtkScrollablePolicy"><span class="type">GtkScrollablePolicy</span></a> policy</code></em>);</pre>
<p>Sets the <a class="link" href="GtkScrollable.html#GtkScrollablePolicy" title="enum GtkScrollablePolicy"><span class="type">GtkScrollablePolicy</span></a> to determine whether
vertical scrolling should start below the minimum height or
below the natural height.</p>
<div class="refsect3">
<a name="gtk-scrollable-set-vscroll-policy.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>scrollable</p></td>
<td class="parameter_description"><p>a <a class="link" href="GtkScrollable.html" title="GtkScrollable"><span class="type">GtkScrollable</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>policy</p></td>
<td class="parameter_description"><p>the vertical <a class="link" href="GtkScrollable.html#GtkScrollablePolicy" title="enum GtkScrollablePolicy"><span class="type">GtkScrollablePolicy</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<p class="since">Since: <a class="link" href="api-index-3-0.html#api-index-3.0">3.0</a></p>
</div>
<hr>
<div class="refsect2">
<a name="gtk-scrollable-get-border"></a><h3>gtk_scrollable_get_border ()</h3>
<pre class="programlisting"><a href="https://developer.gnome.org/glib/unstable/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>
gtk_scrollable_get_border (<em class="parameter"><code><a class="link" href="GtkScrollable.html" title="GtkScrollable"><span class="type">GtkScrollable</span></a> *scrollable</code></em>,
<em class="parameter"><code><a class="link" href="GtkStyleContext.html#GtkBorder"><span class="type">GtkBorder</span></a> *border</code></em>);</pre>
<p>Returns the size of a non-scrolling border around the
outside of the scrollable. An example for this would
be treeview headers. GTK+ can use this information to
display overlayed graphics, like the overshoot indication,
at the right position.</p>
<div class="refsect3">
<a name="gtk-scrollable-get-border.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>scrollable</p></td>
<td class="parameter_description"><p>a <a class="link" href="GtkScrollable.html" title="GtkScrollable"><span class="type">GtkScrollable</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>border</p></td>
<td class="parameter_description"><p> return location for the results. </p></td>
<td class="parameter_annotations"><span class="annotation">[<acronym title="Out parameter, where caller must allocate storage."><span class="acronym">out caller-allocates</span></acronym>]</span></td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect3">
<a name="gtk-scrollable-get-border.returns"></a><h4>Returns</h4>
<p> <a href="https://developer.gnome.org/glib/unstable/glib-Standard-Macros.html#TRUE:CAPS"><code class="literal">TRUE</code></a> if <em class="parameter"><code>border</code></em>
has been set</p>
</div>
<p class="since">Since: <a class="link" href="api-index-3-16.html#api-index-3.16">3.16</a></p>
</div>
</div>
<div class="refsect1">
<a name="GtkScrollable.other_details"></a><h2>Types and Values</h2>
<div class="refsect2">
<a name="GtkScrollable-struct"></a><h3>GtkScrollable</h3>
<pre class="programlisting">typedef struct _GtkScrollable GtkScrollable;</pre>
</div>
<hr>
<div class="refsect2">
<a name="GtkScrollablePolicy"></a><h3>enum GtkScrollablePolicy</h3>
<p>Defines the policy to be used in a scrollable widget when updating
the scrolled window adjustments in a given orientation.</p>
<div class="refsect3">
<a name="GtkScrollablePolicy.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="GTK-SCROLL-MINIMUM:CAPS"></a>GTK_SCROLL_MINIMUM</p></td>
<td class="enum_member_description">
<p>Scrollable adjustments are based on the minimum size</p>
</td>
<td class="enum_member_annotations"> </td>
</tr>
<tr>
<td class="enum_member_name"><p><a name="GTK-SCROLL-NATURAL:CAPS"></a>GTK_SCROLL_NATURAL</p></td>
<td class="enum_member_description">
<p>Scrollable adjustments are based on the natural size</p>
</td>
<td class="enum_member_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
</div>
</div>
<div class="refsect1">
<a name="GtkScrollable.property-details"></a><h2>Property Details</h2>
<div class="refsect2">
<a name="GtkScrollable--hadjustment"></a><h3>The <code class="literal">“hadjustment”</code> property</h3>
<pre class="programlisting"> “hadjustment” <a class="link" href="GtkAdjustment.html" title="GtkAdjustment"><span class="type">GtkAdjustment</span></a> *</pre>
<p>Horizontal <a class="link" href="GtkAdjustment.html" title="GtkAdjustment"><span class="type">GtkAdjustment</span></a> of the scrollable widget. This adjustment is
shared between the scrollable widget and its parent.</p>
<p>Flags: Read / Write / Construct</p>
<p class="since">Since: <a class="link" href="api-index-3-0.html#api-index-3.0">3.0</a></p>
</div>
<hr>
<div class="refsect2">
<a name="GtkScrollable--hscroll-policy"></a><h3>The <code class="literal">“hscroll-policy”</code> property</h3>
<pre class="programlisting"> “hscroll-policy” <a class="link" href="GtkScrollable.html#GtkScrollablePolicy" title="enum GtkScrollablePolicy"><span class="type">GtkScrollablePolicy</span></a></pre>
<p>Determines whether horizontal scrolling should start once the scrollable
widget is allocated less than its minimum width or less than its natural width.</p>
<p>Flags: Read / Write</p>
<p>Default value: GTK_SCROLL_MINIMUM</p>
<p class="since">Since: <a class="link" href="api-index-3-0.html#api-index-3.0">3.0</a></p>
</div>
<hr>
<div class="refsect2">
<a name="GtkScrollable--vadjustment"></a><h3>The <code class="literal">“vadjustment”</code> property</h3>
<pre class="programlisting"> “vadjustment” <a class="link" href="GtkAdjustment.html" title="GtkAdjustment"><span class="type">GtkAdjustment</span></a> *</pre>
<p>Verical <a class="link" href="GtkAdjustment.html" title="GtkAdjustment"><span class="type">GtkAdjustment</span></a> of the scrollable widget. This adjustment is shared
between the scrollable widget and its parent.</p>
<p>Flags: Read / Write / Construct</p>
<p class="since">Since: <a class="link" href="api-index-3-0.html#api-index-3.0">3.0</a></p>
</div>
<hr>
<div class="refsect2">
<a name="GtkScrollable--vscroll-policy"></a><h3>The <code class="literal">“vscroll-policy”</code> property</h3>
<pre class="programlisting"> “vscroll-policy” <a class="link" href="GtkScrollable.html#GtkScrollablePolicy" title="enum GtkScrollablePolicy"><span class="type">GtkScrollablePolicy</span></a></pre>
<p>Determines whether vertical scrolling should start once the scrollable
widget is allocated less than its minimum height or less than its natural height.</p>
<p>Flags: Read / Write</p>
<p>Default value: GTK_SCROLL_MINIMUM</p>
<p class="since">Since: <a class="link" href="api-index-3-0.html#api-index-3.0">3.0</a></p>
</div>
</div>
</div>
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