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<tr><td colspan="5" class="shortcuts"><nobr><a href="#id2755802" class="shortcut">Top</a>
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<a href="#id2755887" class="shortcut">Description</a></nobr></td></tr>
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<div class="refentry" lang="en">
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<a name="gtk-Graphics-Contexts"></a><div class="titlepage"></div>
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<div class="refnamediv"><table width="100%"><tr>
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<a name="id2755802"></a><span class="refentrytitle">Graphics Contexts</span>
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<p>Graphics Contexts — A shared pool of GdkGC objects</p>
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<td valign="top" align="right"></td>
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<div class="refsynopsisdiv">
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<pre class="synopsis">
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#include <gtk/gtk.h>
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href="../gdk/gdk-Graphics-Contexts.html#GdkGC"
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>GdkGC</a>* <a href="gtk-Graphics-Contexts.html#gtk-gc-get">gtk_gc_get</a> (gint depth,
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href="../gdk/gdk-Colormaps-and-Colors.html#GdkColormap"
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>GdkColormap</a> *colormap,
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href="../gdk/gdk-Graphics-Contexts.html#GdkGCValues"
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>GdkGCValues</a> *values,
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href="../gdk/gdk-Graphics-Contexts.html#GdkGCValuesMask"
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>GdkGCValuesMask</a> values_mask);
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void <a href="gtk-Graphics-Contexts.html#gtk-gc-release">gtk_gc_release</a> (<a
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href="../gdk/gdk-Graphics-Contexts.html#GdkGC"
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<div class="refsect1" lang="en">
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<a name="id2755887"></a><h2>Description</h2>
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These functions provide access to a shared pool of <a
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href="../gdk/gdk-Graphics-Contexts.html#GdkGC"
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><span class="type">GdkGC</span></a> objects.
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href="../gdk/gdk-Graphics-Contexts.html#GdkGC"
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><span class="type">GdkGC</span></a> is needed, <a href="gtk-Graphics-Contexts.html#gtk-gc-get"><code class="function">gtk_gc_get()</code></a> is called with the required depth,
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href="../gdk/gdk-Graphics-Contexts.html#GdkGCValues"
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><span class="type">GdkGCValues</span></a>. If a <a
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href="../gdk/gdk-Graphics-Contexts.html#GdkGC"
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><span class="type">GdkGC</span></a> with the required properties already
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exists then that is returned. If not, a new <a
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href="../gdk/gdk-Graphics-Contexts.html#GdkGC"
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><span class="type">GdkGC</span></a> is created.
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href="../gdk/gdk-Graphics-Contexts.html#GdkGC"
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><span class="type">GdkGC</span></a> is no longer needed, <a href="gtk-Graphics-Contexts.html#gtk-gc-release"><code class="function">gtk_gc_release()</code></a> should be called.
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<div class="refsect1" lang="en">
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<a name="id2755974"></a><h2>Details</h2>
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<div class="refsect2" lang="en">
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<a name="id2755984"></a><h3>
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<a name="gtk-gc-get"></a>gtk_gc_get ()</h3>
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<a class="indexterm" name="id2755997"></a><pre class="programlisting"><a
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href="../gdk/gdk-Graphics-Contexts.html#GdkGC"
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>GdkGC</a>* gtk_gc_get (gint depth,
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href="../gdk/gdk-Colormaps-and-Colors.html#GdkColormap"
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>GdkColormap</a> *colormap,
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href="../gdk/gdk-Graphics-Contexts.html#GdkGCValues"
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>GdkGCValues</a> *values,
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href="../gdk/gdk-Graphics-Contexts.html#GdkGCValuesMask"
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>GdkGCValuesMask</a> values_mask);</pre>
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href="../gdk/gdk-Graphics-Contexts.html#GdkGC"
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><span class="type">GdkGC</span></a> with the given depth, colormap and <a
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href="../gdk/gdk-Graphics-Contexts.html#GdkGCValues"
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><span class="type">GdkGCValues</span></a>.
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href="../gdk/gdk-Graphics-Contexts.html#GdkGC"
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><span class="type">GdkGC</span></a> with the given properties already exists then it is returned,
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href="../gdk/gdk-Graphics-Contexts.html#GdkGC"
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><span class="type">GdkGC</span></a> is created.
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href="../gdk/gdk-Graphics-Contexts.html#GdkGC"
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><span class="type">GdkGC</span></a> should be released with <a href="gtk-Graphics-Contexts.html#gtk-gc-release"><code class="function">gtk_gc_release()</code></a> when it is no
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<div class="variablelist"><table border="0">
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<col align="left" valign="top">
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<td><span class="term"><em class="parameter"><code>depth</code></em> :</span></td>
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<td>the depth of the <a
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href="../gdk/gdk-Graphics-Contexts.html#GdkGC"
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><span class="type">GdkGC</span></a> to create.
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<td><span class="term"><em class="parameter"><code>colormap</code></em> :</span></td>
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href="../gdk/gdk-Colormaps-and-Colors.html#GdkColormap"
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><span class="type">GdkColormap</span></a> (FIXME: I don't know why this is needed).
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<td><span class="term"><em class="parameter"><code>values</code></em> :</span></td>
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href="../gdk/gdk-Graphics-Contexts.html#GdkGCValues"
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><span class="type">GdkGCValues</span></a> struct containing settings for the <a
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href="../gdk/gdk-Graphics-Contexts.html#GdkGC"
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><span class="type">GdkGC</span></a>.
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<td><span class="term"><em class="parameter"><code>values_mask</code></em> :</span></td>
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<td>a set of flags indicating which of the fields in <em class="parameter"><code>values</code></em> has
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<td><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></td>
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href="../gdk/gdk-Graphics-Contexts.html#GdkGC"
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><span class="type">GdkGC</span></a>.
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<div class="refsect2" lang="en">
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<a name="id2756220"></a><h3>
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<a name="gtk-gc-release"></a>gtk_gc_release ()</h3>
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<a class="indexterm" name="id2756233"></a><pre class="programlisting">void gtk_gc_release (<a
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href="../gdk/gdk-Graphics-Contexts.html#GdkGC"
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>GdkGC</a> *gc);</pre>
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href="../gdk/gdk-Graphics-Contexts.html#GdkGC"
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><span class="type">GdkGC</span></a> allocated using <a href="gtk-Graphics-Contexts.html#gtk-gc-get"><code class="function">gtk_gc_get()</code></a>.
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<div class="variablelist"><table border="0">
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<col align="left" valign="top">
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<td><span class="term"><em class="parameter"><code>gc</code></em> :</span></td>
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href="../gdk/gdk-Graphics-Contexts.html#GdkGC"
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><span class="type">GdkGC</span></a>.