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<h1>Gtk::Adjustment Class Reference</h1>A class representing an adjustable bounded value.
<a href="#_details">More...</a>
<p>
Inheritance diagram for Gtk::Adjustment:<p><center><img src="classGtk_1_1Adjustment__inherit__graph.png" border="0" usemap="#Gtk_1_1Adjustment__inherit__map" alt="Inheritance graph"></center>
<map name="Gtk_1_1Adjustment__inherit__map">
<area href="classGtk_1_1Object.html" shape="rect" coords="23,155,100,174" alt="">
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<center><font size="2">[<a href="graph_legend.html">legend</a>]</font></center><a href="classGtk_1_1Adjustment-members.html">List of all members.</a><table border=0 cellpadding=0 cellspacing=0>
<tr><td></td></tr>
<tr><td colspan=2><br><h2>Public Methods</h2></td></tr>
<tr><td nowrap align=right valign=top>virtual </td><td valign=bottom><a class="el" href="classGtk_1_1Adjustment.html#a0">~Adjustment</a> ()</td></tr>
<tr><td nowrap align=right valign=top>GtkAdjustment* </td><td valign=bottom><a class="el" href="classGtk_1_1Adjustment.html#a1">gobj</a> ()</td></tr>
<tr><td nowrap align=right valign=top>const GtkAdjustment* </td><td valign=bottom><a class="el" href="classGtk_1_1Adjustment.html#a2">gobj</a> () const</td></tr>
<tr><td nowrap align=right valign=top> </td><td valign=bottom><a class="el" href="classGtk_1_1Adjustment.html#a3">Adjustment</a> (double value, double lower, double upper, double step_increment=1, double page_increment=10, double page_size=0)</td></tr>
<tr><td nowrap align=right valign=top>void </td><td valign=bottom><a class="el" href="classGtk_1_1Adjustment.html#a4">changed</a> ()</td></tr>
<tr><td nowrap align=right valign=top>void </td><td valign=bottom><a class="el" href="classGtk_1_1Adjustment.html#a5">value_changed</a> ()</td></tr>
<tr><td nowrap align=right valign=top>void </td><td valign=bottom><a class="el" href="classGtk_1_1Adjustment.html#a6">clamp_page</a> (double lower, double upper)</td></tr>
<tr><td nowrap align=right valign=top>void </td><td valign=bottom><a class="el" href="classGtk_1_1Adjustment.html#a7">set_value</a> (double value)</td></tr>
<tr><td nowrap align=right valign=top>double </td><td valign=bottom><a class="el" href="classGtk_1_1Adjustment.html#a8">get_value</a> () const</td></tr>
<tr><td> </td><td><font size=-1><em>Gets the current value of the adjustment.</em> <a href="#a8"></a><em></em></font><br><br></td></tr>
<tr><td nowrap align=right valign=top>double </td><td valign=bottom><a class="el" href="classGtk_1_1Adjustment.html#a9">get_lower</a> () const</td></tr>
<tr><td nowrap align=right valign=top>double </td><td valign=bottom><a class="el" href="classGtk_1_1Adjustment.html#a10">get_upper</a> () const</td></tr>
<tr><td nowrap align=right valign=top>double </td><td valign=bottom><a class="el" href="classGtk_1_1Adjustment.html#a11">get_step_increment</a> () const</td></tr>
<tr><td nowrap align=right valign=top>double </td><td valign=bottom><a class="el" href="classGtk_1_1Adjustment.html#a12">get_page_increment</a> () const</td></tr>
<tr><td nowrap align=right valign=top>double </td><td valign=bottom><a class="el" href="classGtk_1_1Adjustment.html#a13">get_page_size</a> () const</td></tr>
<tr><td nowrap align=right valign=top>void </td><td valign=bottom><a class="el" href="classGtk_1_1Adjustment.html#a14">set_lower</a> (double lower)</td></tr>
<tr><td nowrap align=right valign=top>void </td><td valign=bottom><a class="el" href="classGtk_1_1Adjustment.html#a15">set_upper</a> (double upper)</td></tr>
<tr><td nowrap align=right valign=top>void </td><td valign=bottom><a class="el" href="classGtk_1_1Adjustment.html#a16">set_step_increment</a> (double incr)</td></tr>
<tr><td nowrap align=right valign=top>void </td><td valign=bottom><a class="el" href="classGtk_1_1Adjustment.html#a17">set_page_increment</a> (double incr)</td></tr>
<tr><td nowrap align=right valign=top>void </td><td valign=bottom><a class="el" href="classGtk_1_1Adjustment.html#a18">set_page_size</a> (double size)</td></tr>
<tr><td nowrap align=right valign=top><a class="el" href="classGlib_1_1SignalProxy0.html">Glib::SignalProxy0</a><void> </td><td valign=bottom><a class="el" href="classGtk_1_1Adjustment.html#a19">signal_changed</a> ()</td></tr>
<tr><td nowrap align=right valign=top><a class="el" href="classGlib_1_1SignalProxy0.html">Glib::SignalProxy0</a><void> </td><td valign=bottom><a class="el" href="classGtk_1_1Adjustment.html#a20">signal_value_changed</a> ()</td></tr>
<tr><td colspan=2><br><h2>Protected Methods</h2></td></tr>
<tr><td nowrap align=right valign=top>virtual void </td><td valign=bottom><a class="el" href="classGtk_1_1Adjustment.html#b0">on_changed</a> ()</td></tr>
<tr><td nowrap align=right valign=top>virtual void </td><td valign=bottom><a class="el" href="classGtk_1_1Adjustment.html#b1">on_value_changed</a> ()</td></tr>
<tr><td colspan=2><br><h2>Friends</h2></td></tr>
<tr><td nowrap align=right valign=top>class </td><td valign=bottom><a class="el" href="classGtk_1_1Adjustment.html#l0">Range</a></td></tr>
<tr><td nowrap align=right valign=top>class </td><td valign=bottom><a class="el" href="classGtk_1_1Adjustment.html#l1">HScrollbar</a></td></tr>
<tr><td nowrap align=right valign=top>class </td><td valign=bottom><a class="el" href="classGtk_1_1Adjustment.html#l2">VScrollbar</a></td></tr>
<tr><td colspan=2><br><h2>Related Functions</h2></td></tr>
<tr><td colspan=2>(Note that these are not member functions.)<br><br></td></tr>
<tr><td nowrap align=right valign=top>Gtk::Adjustment* </td><td valign=bottom><a class="el" href="classGtk_1_1Adjustment.html#k0">wrap</a> (GtkAdjustment* object, bool take_copy=false)</td></tr>
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<hr><a name="_details"></a><h2>Detailed Description</h2>
A class representing an adjustable bounded value.
<p>
The Gtk::Adjustment object represents a value which has an associated lower and upper bound, together with step and page increments, and a page size. It is used within several gtkmm widgets, including <a class="el" href="classGtk_1_1SpinButton.html">Gtk::SpinButton</a>, <a class="el" href="classGtk_1_1Viewport.html">Gtk::Viewport</a>, and <a class="el" href="classGtk_1_1Range.html">Gtk::Range</a> (which is a base class for <a class="el" href="classGtk_1_1HScrollbar.html">Gtk::HScrollbar</a>, <a class="el" href="classGtk_1_1VScrollbar.html">Gtk::VScrollbar</a>, <a class="el" href="classGtk_1_1HScale.html">Gtk::HScale</a>, and Gtk::VScale).
<p>
The Gtk::Adjustment object does not update the value itself. Instead it is left up to the owner of the Gtk::Adjustment to control the value.
<p>
The owner of the Gtk::Adjustment typically calls the <a class="el" href="classGtk_1_1Adjustment.html#a5">value_changed()</a> and <a class="el" href="classGtk_1_1Adjustment.html#a4">changed()</a> functions after changing the value and its bounds. This results in the emission of the "value_changed" or "changed" signal respectively.
<p>
<hr><h2>Constructor & Destructor Documentation</h2>
<a name="a0" doxytag="Gtk::Adjustment::~Adjustment"></a><p>
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<td class="md" nowrap valign="top"> virtual Gtk::Adjustment::~Adjustment </td>
<td class="md" valign="top">(</td>
<td class="mdname1" valign="top" nowrap> </td>
<td class="md" valign="top">) </td>
<td class="md" nowrap><code> [virtual]</code></td>
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<a name="a3" doxytag="Gtk::Adjustment::Adjustment"></a><p>
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<td class="md" nowrap valign="top"> Gtk::Adjustment::Adjustment </td>
<td class="md" valign="top">(</td>
<td class="md" nowrap valign="top">double </td>
<td class="mdname" nowrap> <em>value</em>, </td>
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<td></td>
<td></td>
<td class="md" nowrap>double </td>
<td class="mdname" nowrap> <em>lower</em>, </td>
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<td></td>
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<td class="md" nowrap>double </td>
<td class="mdname" nowrap> <em>upper</em>, </td>
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<td></td>
<td></td>
<td class="md" nowrap>double </td>
<td class="mdname" nowrap> <em>step_increment</em> = 1, </td>
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<td></td>
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<td class="md" nowrap>double </td>
<td class="mdname" nowrap> <em>page_increment</em> = 10, </td>
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<td></td>
<td></td>
<td class="md" nowrap>double </td>
<td class="mdname" nowrap> <em>page_size</em> = 0</td>
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<td class="md">) </td>
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<hr><h2>Member Function Documentation</h2>
<a name="a4" doxytag="Gtk::Adjustment::changed"></a><p>
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<td class="md" nowrap valign="top"> void Gtk::Adjustment::changed </td>
<td class="md" valign="top">(</td>
<td class="mdname1" valign="top" nowrap> </td>
<td class="md" valign="top">) </td>
<td class="md" nowrap></td>
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<a name="a6" doxytag="Gtk::Adjustment::clamp_page"></a><p>
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<td class="md" nowrap valign="top"> void Gtk::Adjustment::clamp_page </td>
<td class="md" valign="top">(</td>
<td class="md" nowrap valign="top">double </td>
<td class="mdname" nowrap> <em>lower</em>, </td>
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<td></td>
<td></td>
<td class="md" nowrap>double </td>
<td class="mdname" nowrap> <em>upper</em></td>
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<td></td>
<td class="md">) </td>
<td class="md" colspan="2"></td>
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<a name="a9" doxytag="Gtk::Adjustment::get_lower"></a><p>
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<td class="md" nowrap valign="top"> double Gtk::Adjustment::get_lower </td>
<td class="md" valign="top">(</td>
<td class="mdname1" valign="top" nowrap> </td>
<td class="md" valign="top">) </td>
<td class="md" nowrap> const</td>
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<a name="a12" doxytag="Gtk::Adjustment::get_page_increment"></a><p>
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<td class="md" nowrap valign="top"> double Gtk::Adjustment::get_page_increment </td>
<td class="md" valign="top">(</td>
<td class="mdname1" valign="top" nowrap> </td>
<td class="md" valign="top">) </td>
<td class="md" nowrap> const</td>
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<a name="a13" doxytag="Gtk::Adjustment::get_page_size"></a><p>
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<td class="md" nowrap valign="top"> double Gtk::Adjustment::get_page_size </td>
<td class="md" valign="top">(</td>
<td class="mdname1" valign="top" nowrap> </td>
<td class="md" valign="top">) </td>
<td class="md" nowrap> const</td>
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<a name="a11" doxytag="Gtk::Adjustment::get_step_increment"></a><p>
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<td class="md" nowrap valign="top"> double Gtk::Adjustment::get_step_increment </td>
<td class="md" valign="top">(</td>
<td class="mdname1" valign="top" nowrap> </td>
<td class="md" valign="top">) </td>
<td class="md" nowrap> const</td>
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<a name="a10" doxytag="Gtk::Adjustment::get_upper"></a><p>
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<td class="md" nowrap valign="top"> double Gtk::Adjustment::get_upper </td>
<td class="md" valign="top">(</td>
<td class="mdname1" valign="top" nowrap> </td>
<td class="md" valign="top">) </td>
<td class="md" nowrap> const</td>
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<a name="a8" doxytag="Gtk::Adjustment::get_value"></a><p>
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<td class="md" nowrap valign="top"> double Gtk::Adjustment::get_value </td>
<td class="md" valign="top">(</td>
<td class="mdname1" valign="top" nowrap> </td>
<td class="md" valign="top">) </td>
<td class="md" nowrap> const</td>
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Gets the current value of the adjustment.
<p>
See <a class="el" href="classGtk_1_1Adjustment.html#a7">set_value()</a>. <dl compact><dt><b>Returns:</b></dt><dd>The current value of the adjustment. </dd></dl>
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<a name="a2" doxytag="Gtk::Adjustment::gobj"></a><p>
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<td class="md" nowrap valign="top"> const GtkAdjustment* Gtk::Adjustment::gobj </td>
<td class="md" valign="top">(</td>
<td class="mdname1" valign="top" nowrap> </td>
<td class="md" valign="top">) </td>
<td class="md" nowrap> const<code> [inline]</code></td>
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Reimplemented from <a class="el" href="classGtk_1_1Object.html#a2">Gtk::Object</a>. </td>
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<a name="a1" doxytag="Gtk::Adjustment::gobj"></a><p>
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<td class="md" nowrap valign="top"> GtkAdjustment* Gtk::Adjustment::gobj </td>
<td class="md" valign="top">(</td>
<td class="mdname1" valign="top" nowrap> </td>
<td class="md" valign="top">) </td>
<td class="md" nowrap><code> [inline]</code></td>
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Reimplemented from <a class="el" href="classGtk_1_1Object.html#a1">Gtk::Object</a>. </td>
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<a name="b0" doxytag="Gtk::Adjustment::on_changed"></a><p>
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<td class="md" nowrap valign="top"> virtual void Gtk::Adjustment::on_changed </td>
<td class="md" valign="top">(</td>
<td class="mdname1" valign="top" nowrap> </td>
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<td class="md" nowrap><code> [protected, virtual]</code></td>
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<a name="b1" doxytag="Gtk::Adjustment::on_value_changed"></a><p>
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<td class="md" nowrap valign="top"> virtual void Gtk::Adjustment::on_value_changed </td>
<td class="md" valign="top">(</td>
<td class="mdname1" valign="top" nowrap> </td>
<td class="md" valign="top">) </td>
<td class="md" nowrap><code> [protected, virtual]</code></td>
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<a name="a14" doxytag="Gtk::Adjustment::set_lower"></a><p>
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<td class="md" nowrap valign="top"> void Gtk::Adjustment::set_lower </td>
<td class="md" valign="top">(</td>
<td class="md" nowrap valign="top">double </td>
<td class="mdname1" valign="top" nowrap> <em>lower</em> </td>
<td class="md" valign="top">) </td>
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<a name="a17" doxytag="Gtk::Adjustment::set_page_increment"></a><p>
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<td class="md" nowrap valign="top"> void Gtk::Adjustment::set_page_increment </td>
<td class="md" valign="top">(</td>
<td class="md" nowrap valign="top">double </td>
<td class="mdname1" valign="top" nowrap> <em>incr</em> </td>
<td class="md" valign="top">) </td>
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<a name="a18" doxytag="Gtk::Adjustment::set_page_size"></a><p>
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<td class="md" nowrap valign="top"> void Gtk::Adjustment::set_page_size </td>
<td class="md" valign="top">(</td>
<td class="md" nowrap valign="top">double </td>
<td class="mdname1" valign="top" nowrap> <em>size</em> </td>
<td class="md" valign="top">) </td>
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<a name="a16" doxytag="Gtk::Adjustment::set_step_increment"></a><p>
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<td class="md" nowrap valign="top"> void Gtk::Adjustment::set_step_increment </td>
<td class="md" valign="top">(</td>
<td class="md" nowrap valign="top">double </td>
<td class="mdname1" valign="top" nowrap> <em>incr</em> </td>
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<a name="a15" doxytag="Gtk::Adjustment::set_upper"></a><p>
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<td class="md" nowrap valign="top"> void Gtk::Adjustment::set_upper </td>
<td class="md" valign="top">(</td>
<td class="md" nowrap valign="top">double </td>
<td class="mdname1" valign="top" nowrap> <em>upper</em> </td>
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<a name="a7" doxytag="Gtk::Adjustment::set_value"></a><p>
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<td class="md" nowrap valign="top"> void Gtk::Adjustment::set_value </td>
<td class="md" valign="top">(</td>
<td class="md" nowrap valign="top">double </td>
<td class="mdname1" valign="top" nowrap> <em>value</em> </td>
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<a name="a19" doxytag="Gtk::Adjustment::signal_changed"></a><p>
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<td class="md" nowrap valign="top"> <a class="el" href="classGlib_1_1SignalProxy0.html">Glib::SignalProxy0</a><void> Gtk::Adjustment::signal_changed </td>
<td class="md" valign="top">(</td>
<td class="mdname1" valign="top" nowrap> </td>
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<dl compact><dt><b>Prototype:</b></dt><dd><code>void changed()</code> </dd></dl>
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<a name="a20" doxytag="Gtk::Adjustment::signal_value_changed"></a><p>
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<td class="md" nowrap valign="top"> <a class="el" href="classGlib_1_1SignalProxy0.html">Glib::SignalProxy0</a><void> Gtk::Adjustment::signal_value_changed </td>
<td class="md" valign="top">(</td>
<td class="mdname1" valign="top" nowrap> </td>
<td class="md" valign="top">) </td>
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<dl compact><dt><b>Prototype:</b></dt><dd><code>void value_changed()</code> </dd></dl>
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<a name="a5" doxytag="Gtk::Adjustment::value_changed"></a><p>
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<td class="md" nowrap valign="top"> void Gtk::Adjustment::value_changed </td>
<td class="md" valign="top">(</td>
<td class="mdname1" valign="top" nowrap> </td>
<td class="md" valign="top">) </td>
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<hr><h2>Friends And Related Function Documentation</h2>
<a name="l1" doxytag="Gtk::Adjustment::HScrollbar"></a><p>
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<td class="md" nowrap valign="top"> friend class HScrollbar<code> [friend]</code>
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<a name="l0" doxytag="Gtk::Adjustment::Range"></a><p>
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<td class="md" nowrap valign="top"> friend class Range<code> [friend]</code>
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<a name="l2" doxytag="Gtk::Adjustment::VScrollbar"></a><p>
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<td class="md" nowrap valign="top"> friend class VScrollbar<code> [friend]</code>
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<a name="k0" doxytag="Gtk::Adjustment::wrap"></a><p>
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<td class="md" nowrap valign="top"> Gtk::Adjustment* wrap </td>
<td class="md" valign="top">(</td>
<td class="md" nowrap valign="top">GtkAdjustment* </td>
<td class="mdname" nowrap> <em>object</em>, </td>
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<td></td>
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<td class="md" nowrap>bool </td>
<td class="mdname" nowrap> <em>take_copy</em> = false</td>
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<td></td>
<td class="md">) </td>
<td class="md" colspan="2"><code> [related]</code></td>
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<hr>The documentation for this class was generated from the following file:<ul>
<li><a class="el" href="adjustment_8h.html">adjustment.h</a></ul>
<hr><address><small>
Generated for gtkmm by <a href="http://www.doxygen.org/index.html">
Doxygen</a> 1.3-rc1 © 1997-2001</small></address>
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