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<h1>Gdk::Visual Class Reference</h1>Inheritance diagram for Gdk::Visual:<p><center><img src="classGdk_1_1Visual__inherit__graph.png" border="0" usemap="#Gdk_1_1Visual__inherit__map" alt="Inheritance graph"></center>
<map name="Gdk_1_1Visual__inherit__map">
<area href="classGlib_1_1Object.html" shape="rect" coords="21,86,101,105" alt="">
<area href="classGlib_1_1ObjectBase.html" shape="rect" coords="7,17,116,36" alt="">
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<center><font size="2">[<a href="graph_legend.html">legend</a>]</font></center><a href="classGdk_1_1Visual-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="classGdk_1_1Visual.html#a0">~Visual</a> ()</td></tr>
<tr><td nowrap align=right valign=top>GdkVisual* </td><td valign=bottom><a class="el" href="classGdk_1_1Visual.html#a1">gobj</a> ()</td></tr>
<tr><td nowrap align=right valign=top>const GdkVisual* </td><td valign=bottom><a class="el" href="classGdk_1_1Visual.html#a2">gobj</a> () const</td></tr>
<tr><td nowrap align=right valign=top>GdkVisual* </td><td valign=bottom><a class="el" href="classGdk_1_1Visual.html#a3">gobj_copy</a> ()</td></tr>
<tr><td nowrap align=right valign=top><a class="el" href="classGlib_1_1RefPtr.html">Glib::RefPtr</a><<a class="el" href="classGdk_1_1Screen.html">Screen</a>> </td><td valign=bottom><a class="el" href="classGdk_1_1Visual.html#a4">get_screen</a> ()</td></tr>
<tr><td> </td><td><font size=-1><em>Gets the screen to which this visual belongs.</em> <a href="#a4"></a><em></em></font><br><br></td></tr>
<tr><td nowrap align=right valign=top><a class="el" href="classGlib_1_1RefPtr.html">Glib::RefPtr</a><const <a class="el" href="classGdk_1_1Screen.html">Screen</a>> </td><td valign=bottom><a class="el" href="classGdk_1_1Visual.html#a5">get_screen</a> () const</td></tr>
<tr><td> </td><td><font size=-1><em>Gets the screen to which this visual belongs.</em> <a href="#a5"></a><em></em></font><br><br></td></tr>
<tr><td colspan=2><br><h2>Static Public Methods</h2></td></tr>
<tr><td nowrap align=right valign=top><a class="el" href="classGlib_1_1RefPtr.html">Glib::RefPtr</a><Visual> </td><td valign=bottom><a class="el" href="classGdk_1_1Visual.html#d0">get_system</a> ()</td></tr>
<tr><td> </td><td><font size=-1><em>Get the system'sdefault visual for the default GDK screen.</em> <a href="#d0"></a><em></em></font><br><br></td></tr>
<tr><td nowrap align=right valign=top><a class="el" href="classGlib_1_1RefPtr.html">Glib::RefPtr</a><Visual> </td><td valign=bottom><a class="el" href="classGdk_1_1Visual.html#d1">get_best</a> ()</td></tr>
<tr><td> </td><td><font size=-1><em>Get the visual with the most available colors for the default GDK screen.</em> <a href="#d1"></a><em></em></font><br><br></td></tr>
<tr><td nowrap align=right valign=top><a class="el" href="classGlib_1_1RefPtr.html">Glib::RefPtr</a><Visual> </td><td valign=bottom><a class="el" href="classGdk_1_1Visual.html#d2">get_best</a> (int depth)</td></tr>
<tr><td> </td><td><font size=-1><em>Get the best visual with depth <em>depth</em> for the default GDK screen.</em> <a href="#d2"></a><em></em></font><br><br></td></tr>
<tr><td nowrap align=right valign=top><a class="el" href="classGlib_1_1RefPtr.html">Glib::RefPtr</a><Visual> </td><td valign=bottom><a class="el" href="classGdk_1_1Visual.html#d3">get_best</a> (<a class="el" href="group__gdkmmEnums.html#a95">VisualType</a> visual_type)</td></tr>
<tr><td> </td><td><font size=-1><em>Get the best visual of the given <em>visual_type</em> for the default GDK screen.</em> <a href="#d3"></a><em></em></font><br><br></td></tr>
<tr><td nowrap align=right valign=top><a class="el" href="classGlib_1_1RefPtr.html">Glib::RefPtr</a><Visual> </td><td valign=bottom><a class="el" href="classGdk_1_1Visual.html#d4">get_best</a> (int depth, <a class="el" href="group__gdkmmEnums.html#a95">VisualType</a> visual_type)</td></tr>
<tr><td> </td><td><font size=-1><em>Combines gdk_visual_get_best_with_depth() and gdk_visual_get_best_with_type().</em> <a href="#d4"></a><em></em></font><br><br></td></tr>
<tr><td nowrap align=right valign=top>int </td><td valign=bottom><a class="el" href="classGdk_1_1Visual.html#d5">get_best_depth</a> ()</td></tr>
<tr><td> </td><td><font size=-1><em>Get the best available depth for the default GDK screen.</em> <a href="#d5"></a><em></em></font><br><br></td></tr>
<tr><td nowrap align=right valign=top><a class="el" href="group__gdkmmEnums.html#a95">VisualType</a> </td><td valign=bottom><a class="el" href="classGdk_1_1Visual.html#d6">get_best_type</a> ()</td></tr>
<tr><td> </td><td><font size=-1><em>Return the best available visual type for the default GDK screen.</em> <a href="#d6"></a><em></em></font><br><br></td></tr>
<tr><td colspan=2><br><h2>Protected Methods</h2></td></tr>
<tr><td nowrap align=right valign=top> </td><td valign=bottom><a class="el" href="classGdk_1_1Visual.html#b0">Visual</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><a class="el" href="classGlib_1_1RefPtr.html">Glib::RefPtr</a><Gdk::Visual> </td><td valign=bottom><a class="el" href="classGdk_1_1Visual.html#k0">wrap</a> (GdkVisual* object, bool take_copy=false)</td></tr>
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<hr><h2>Constructor & Destructor Documentation</h2>
<a name="a0" doxytag="Gdk::Visual::~Visual"></a><p>
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<td class="md" nowrap valign="top"> virtual Gdk::Visual::~Visual </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="b0" doxytag="Gdk::Visual::Visual"></a><p>
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<td class="md" nowrap valign="top"> Gdk::Visual::Visual </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]</code></td>
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<hr><h2>Member Function Documentation</h2>
<a name="d4" doxytag="Gdk::Visual::get_best"></a><p>
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<td class="md" nowrap valign="top"> <a class="el" href="classGlib_1_1RefPtr.html">Glib::RefPtr</a><Visual> Gdk::Visual::get_best </td>
<td class="md" valign="top">(</td>
<td class="md" nowrap valign="top">int </td>
<td class="mdname" nowrap> <em>depth</em>, </td>
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<td></td>
<td></td>
<td class="md" nowrap><a class="el" href="group__gdkmmEnums.html#a95">VisualType</a> </td>
<td class="mdname" nowrap> <em>visual_type</em></td>
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<td></td>
<td class="md">) </td>
<td class="md" colspan="2"><code> [static]</code></td>
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<p>
Combines gdk_visual_get_best_with_depth() and gdk_visual_get_best_with_type().
<p>
<dl compact><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td valign=top><em>depth</em> </td><td>A bit depth. </td></tr>
<tr><td valign=top><em>visual_type</em> </td><td>A visual type. </td></tr>
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</dl>
<dl compact><dt><b>Returns:</b></dt><dd>Best visual with both <em>depth</em> and <em>visual_type</em> , or <code>0</code> if none. </dd></dl>
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<a name="d3" doxytag="Gdk::Visual::get_best"></a><p>
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<td class="md" nowrap valign="top"> <a class="el" href="classGlib_1_1RefPtr.html">Glib::RefPtr</a><Visual> Gdk::Visual::get_best </td>
<td class="md" valign="top">(</td>
<td class="md" nowrap valign="top"><a class="el" href="group__gdkmmEnums.html#a95">VisualType</a> </td>
<td class="mdname1" valign="top" nowrap> <em>visual_type</em> </td>
<td class="md" valign="top">) </td>
<td class="md" nowrap><code> [static]</code></td>
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<p>
Get the best visual of the given <em>visual_type</em> for the default GDK screen.
<p>
Visuals with higher color depths are considered better. The return value should not be freed. <code>0</code> may be returned if no visual has type <em>visual_type</em> . <dl compact><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td valign=top><em>visual_type</em> </td><td>A visual type. </td></tr>
</table>
</dl>
<dl compact><dt><b>Returns:</b></dt><dd>Best visual of the given type. </dd></dl>
</td>
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<a name="d2" doxytag="Gdk::Visual::get_best"></a><p>
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<td class="md" nowrap valign="top"> <a class="el" href="classGlib_1_1RefPtr.html">Glib::RefPtr</a><Visual> Gdk::Visual::get_best </td>
<td class="md" valign="top">(</td>
<td class="md" nowrap valign="top">int </td>
<td class="mdname1" valign="top" nowrap> <em>depth</em> </td>
<td class="md" valign="top">) </td>
<td class="md" nowrap><code> [static]</code></td>
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<p>
Get the best visual with depth <em>depth</em> for the default GDK screen.
<p>
<a class="el" href="classGdk_1_1Color.html">Color</a> visuals and visuals with mutable colormaps are preferred over grayscale or fixed-colormap visuals. The return value should not be freed. <code>0</code> may be returned if no visual supports <em>depth</em> . <dl compact><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td valign=top><em>depth</em> </td><td>A bit depth. </td></tr>
</table>
</dl>
<dl compact><dt><b>Returns:</b></dt><dd>Best visual for the given depth. </dd></dl>
</td>
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<a name="d1" doxytag="Gdk::Visual::get_best"></a><p>
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<td class="md" nowrap valign="top"> <a class="el" href="classGlib_1_1RefPtr.html">Glib::RefPtr</a><Visual> Gdk::Visual::get_best </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> [static]</code></td>
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</td>
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<td>
</td>
<td>
<p>
Get the visual with the most available colors for the default GDK screen.
<p>
The return value should not be freed. <dl compact><dt><b>Returns:</b></dt><dd>Best visual. </dd></dl>
</td>
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<a name="d5" doxytag="Gdk::Visual::get_best_depth"></a><p>
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<td class="md" nowrap valign="top"> int Gdk::Visual::get_best_depth </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> [static]</code></td>
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<p>
Get the best available depth for the default GDK screen.
<p>
"Best" means "largest," i.e. 32 preferred over 24 preferred over 8 bits per pixel. <dl compact><dt><b>Returns:</b></dt><dd>Best available depth. </dd></dl>
</td>
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<a name="d6" doxytag="Gdk::Visual::get_best_type"></a><p>
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<td class="md" nowrap valign="top"> <a class="el" href="group__gdkmmEnums.html#a95">VisualType</a> Gdk::Visual::get_best_type </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> [static]</code></td>
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<p>
Return the best available visual type for the default GDK screen.
<p>
<dl compact><dt><b>Returns:</b></dt><dd>Best visual type. </dd></dl>
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<a name="a5" doxytag="Gdk::Visual::get_screen"></a><p>
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<td class="md" nowrap valign="top"> <a class="el" href="classGlib_1_1RefPtr.html">Glib::RefPtr</a><const <a class="el" href="classGdk_1_1Screen.html">Screen</a>> Gdk::Visual::get_screen </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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<p>
Gets the screen to which this visual belongs.
<p>
<dl compact><dt><b>Returns:</b></dt><dd>The screen to which this visual belongs.</dd></dl>
Since: 2.2. </td>
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<a name="a4" doxytag="Gdk::Visual::get_screen"></a><p>
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<td class="md" nowrap valign="top"> <a class="el" href="classGlib_1_1RefPtr.html">Glib::RefPtr</a><<a class="el" href="classGdk_1_1Screen.html">Screen</a>> Gdk::Visual::get_screen </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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Gets the screen to which this visual belongs.
<p>
<dl compact><dt><b>Returns:</b></dt><dd>The screen to which this visual belongs.</dd></dl>
Since: 2.2. </td>
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<a name="d0" doxytag="Gdk::Visual::get_system"></a><p>
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<td class="md" nowrap valign="top"> <a class="el" href="classGlib_1_1RefPtr.html">Glib::RefPtr</a><Visual> Gdk::Visual::get_system </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> [static]</code></td>
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<p>
Get the system'sdefault visual for the default GDK screen.
<p>
This is the visual for the root window of the display. The return value should not be freed. <dl compact><dt><b>Returns:</b></dt><dd>System visual. </dd></dl>
</td>
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<a name="a2" doxytag="Gdk::Visual::gobj"></a><p>
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<td class="md" nowrap valign="top"> const GdkVisual* Gdk::Visual::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="classGlib_1_1ObjectBase.html#a3">Glib::ObjectBase</a>. </td>
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<a name="a1" doxytag="Gdk::Visual::gobj"></a><p>
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<td class="md" nowrap valign="top"> GdkVisual* Gdk::Visual::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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<p>
Reimplemented from <a class="el" href="classGlib_1_1ObjectBase.html#a2">Glib::ObjectBase</a>. </td>
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<a name="a3" doxytag="Gdk::Visual::gobj_copy"></a><p>
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<td class="md" nowrap valign="top"> GdkVisual* Gdk::Visual::gobj_copy </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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<hr><h2>Friends And Related Function Documentation</h2>
<a name="k0" doxytag="Gdk::Visual::wrap"></a><p>
<table width="100%" cellpadding="2" cellspacing="0" border="0">
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<td class="md" nowrap valign="top"> <a class="el" href="classGlib_1_1RefPtr.html">Glib::RefPtr</a><Gdk::Visual> wrap </td>
<td class="md" valign="top">(</td>
<td class="md" nowrap valign="top">GdkVisual* </td>
<td class="mdname" nowrap> <em>object</em>, </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 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="visual_8h.html">visual.h</a></ul>
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