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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> <title>Colors: GDK 3 Reference Manual</title> <meta name="generator" content="DocBook XSL Stylesheets V1.79.1"> <link rel="home" href="index.html" title="GDK 3 Reference Manual"> <link rel="up" href="rn02.html" title="Deprecated"> <link rel="prev" href="rn02.html" title="Deprecated"> <link rel="next" href="GdkDeviceManager.html" title="GdkDeviceManager"> <meta name="generator" content="GTK-Doc V1.32 (XML mode)"> <link rel="stylesheet" href="style.css" type="text/css"> </head> <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"> <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="#gdk3-Colors.description" class="shortcut">Description</a></span> </td> <td><a accesskey="h" href="index.html"><img src="home.png" width="16" height="16" border="0" alt="Home"></a></td> <td><a accesskey="u" href="rn02.html"><img src="up.png" width="16" height="16" border="0" alt="Up"></a></td> <td><a accesskey="p" href="rn02.html"><img src="left.png" width="16" height="16" border="0" alt="Prev"></a></td> <td><a accesskey="n" href="GdkDeviceManager.html"><img src="right.png" width="16" height="16" border="0" alt="Next"></a></td> </tr></table> <div class="refentry"> <a name="gdk3-Colors"></a><div class="titlepage"></div> <div class="refnamediv"><table width="100%"><tr> <td valign="top"> <h2><span class="refentrytitle"><a name="gdk3-Colors.top_of_page"></a>Colors</span></h2> <p>Colors — Manipulation of colors</p> </td> <td class="gallery_image" valign="top" align="right"></td> </tr></table></div> <div class="refsect1"> <a name="gdk3-Colors.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"> <a class="link" href="gdk3-Colors.html#GdkColor" title="GdkColor"><span class="returnvalue">GdkColor</span></a> * </td> <td class="function_name"> <a class="link" href="gdk3-Colors.html#gdk-color-copy" title="gdk_color_copy ()">gdk_color_copy</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="gdk3-Colors.html#gdk-color-free" title="gdk_color_free ()">gdk_color_free</a> <span class="c_punctuation">()</span> </td> </tr> <tr> <td class="function_type"> <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a> </td> <td class="function_name"> <a class="link" href="gdk3-Colors.html#gdk-color-parse" title="gdk_color_parse ()">gdk_color_parse</a> <span class="c_punctuation">()</span> </td> </tr> <tr> <td class="function_type"> <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a> </td> <td class="function_name"> <a class="link" href="gdk3-Colors.html#gdk-color-equal" title="gdk_color_equal ()">gdk_color_equal</a> <span class="c_punctuation">()</span> </td> </tr> <tr> <td class="function_type"> <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#guint"><span class="returnvalue">guint</span></a> </td> <td class="function_name"> <a class="link" href="gdk3-Colors.html#gdk-color-hash" title="gdk_color_hash ()">gdk_color_hash</a> <span class="c_punctuation">()</span> </td> </tr> <tr> <td class="function_type"> <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gchar"><span class="returnvalue">gchar</span></a> * </td> <td class="function_name"> <a class="link" href="gdk3-Colors.html#gdk-color-to-string" title="gdk_color_to_string ()">gdk_color_to_string</a> <span class="c_punctuation">()</span> </td> </tr> </tbody> </table></div> </div> <div class="refsect1"> <a name="gdk3-Colors.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"> </td> <td class="function_name"><a class="link" href="gdk3-Colors.html#GdkColor" title="GdkColor">GdkColor</a></td> </tr></tbody> </table></div> </div> <div class="refsect1"> <a name="gdk3-Colors.includes"></a><h2>Includes</h2> <pre class="synopsis">#include <gdk/gdk.h> </pre> </div> <div class="refsect1"> <a name="gdk3-Colors.description"></a><h2>Description</h2> <p>A <a class="link" href="gdk3-Colors.html#GdkColor" title="GdkColor"><span class="type">GdkColor</span></a> represents a color.</p> <p>When working with cairo, it is often more convenient to use a <a class="link" href="gdk3-RGBA-Colors.html#GdkRGBA" title="GdkRGBA"><span class="type">GdkRGBA</span></a> instead, and <a class="link" href="gdk3-Colors.html#GdkColor" title="GdkColor"><span class="type">GdkColor</span></a> has been deprecated in favor of <a class="link" href="gdk3-RGBA-Colors.html#GdkRGBA" title="GdkRGBA"><span class="type">GdkRGBA</span></a>.</p> </div> <div class="refsect1"> <a name="gdk3-Colors.functions_details"></a><h2>Functions</h2> <div class="refsect2"> <a name="gdk-color-copy"></a><h3>gdk_color_copy ()</h3> <pre class="programlisting"><a class="link" href="gdk3-Colors.html#GdkColor" title="GdkColor"><span class="returnvalue">GdkColor</span></a> * gdk_color_copy (<em class="parameter"><code>const <a class="link" href="gdk3-Colors.html#GdkColor" title="GdkColor"><span class="type">GdkColor</span></a> *color</code></em>);</pre> <div class="warning"> <p><code class="literal">gdk_color_copy</code> has been deprecated since version 3.14 and should not be used in newly-written code.</p> <p>Use <a class="link" href="gdk3-RGBA-Colors.html#GdkRGBA" title="GdkRGBA"><span class="type">GdkRGBA</span></a></p> </div> <p>Makes a copy of a <a class="link" href="gdk3-Colors.html#GdkColor" title="GdkColor"><span class="type">GdkColor</span></a>.</p> <p>The result must be freed using <a class="link" href="gdk3-Colors.html#gdk-color-free" title="gdk_color_free ()"><code class="function">gdk_color_free()</code></a>.</p> <div class="refsect3"> <a name="gdk-color-copy.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>color</p></td> <td class="parameter_description"><p>a <a class="link" href="gdk3-Colors.html#GdkColor" title="GdkColor"><span class="type">GdkColor</span></a></p></td> <td class="parameter_annotations"> </td> </tr></tbody> </table></div> </div> <div class="refsect3"> <a name="gdk-color-copy.returns"></a><h4>Returns</h4> <p> a copy of <em class="parameter"><code>color</code></em> </p> </div> </div> <hr> <div class="refsect2"> <a name="gdk-color-free"></a><h3>gdk_color_free ()</h3> <pre class="programlisting"><span class="returnvalue">void</span> gdk_color_free (<em class="parameter"><code><a class="link" href="gdk3-Colors.html#GdkColor" title="GdkColor"><span class="type">GdkColor</span></a> *color</code></em>);</pre> <div class="warning"> <p><code class="literal">gdk_color_free</code> has been deprecated since version 3.14 and should not be used in newly-written code.</p> <p>Use <a class="link" href="gdk3-RGBA-Colors.html#GdkRGBA" title="GdkRGBA"><span class="type">GdkRGBA</span></a></p> </div> <p>Frees a <a class="link" href="gdk3-Colors.html#GdkColor" title="GdkColor"><span class="type">GdkColor</span></a> created with <a class="link" href="gdk3-Colors.html#gdk-color-copy" title="gdk_color_copy ()"><code class="function">gdk_color_copy()</code></a>.</p> <div class="refsect3"> <a name="gdk-color-free.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>color</p></td> <td class="parameter_description"><p>a <a class="link" href="gdk3-Colors.html#GdkColor" title="GdkColor"><span class="type">GdkColor</span></a></p></td> <td class="parameter_annotations"> </td> </tr></tbody> </table></div> </div> </div> <hr> <div class="refsect2"> <a name="gdk-color-parse"></a><h3>gdk_color_parse ()</h3> <pre class="programlisting"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a> gdk_color_parse (<em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *spec</code></em>, <em class="parameter"><code><a class="link" href="gdk3-Colors.html#GdkColor" title="GdkColor"><span class="type">GdkColor</span></a> *color</code></em>);</pre> <div class="warning"> <p><code class="literal">gdk_color_parse</code> has been deprecated since version 3.14 and should not be used in newly-written code.</p> <p>Use <a class="link" href="gdk3-RGBA-Colors.html#GdkRGBA" title="GdkRGBA"><span class="type">GdkRGBA</span></a></p> </div> <p>Parses a textual specification of a color and fill in the <em class="parameter"><code>red</code></em> , <em class="parameter"><code>green</code></em> , and <em class="parameter"><code>blue</code></em> fields of a <a class="link" href="gdk3-Colors.html#GdkColor" title="GdkColor"><span class="type">GdkColor</span></a>.</p> <p>The string can either one of a large set of standard names (taken from the X11 <code class="literal">rgb.txt</code> file), or it can be a hexadecimal value in the form “#rgb” “#rrggbb”, “#rrrgggbbb” or “#rrrrggggbbbb” where “r”, “g” and “b” are hex digits of the red, green, and blue components of the color, respectively. (White in the four forms is “#fff”, “#ffffff”, “#fffffffff” and “#ffffffffffff”).</p> <div class="refsect3"> <a name="gdk-color-parse.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>spec</p></td> <td class="parameter_description"><p>the string specifying the color</p></td> <td class="parameter_annotations"> </td> </tr> <tr> <td class="parameter_name"><p>color</p></td> <td class="parameter_description"><p>the <a class="link" href="gdk3-Colors.html#GdkColor" title="GdkColor"><span class="type">GdkColor</span></a> to fill in. </p></td> <td class="parameter_annotations"><span class="annotation">[<acronym title="Parameter for returning results. Default is transfer full."><span class="acronym">out</span></acronym>]</span></td> </tr> </tbody> </table></div> </div> <div class="refsect3"> <a name="gdk-color-parse.returns"></a><h4>Returns</h4> <p> <a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#TRUE:CAPS"><code class="literal">TRUE</code></a> if the parsing succeeded</p> </div> </div> <hr> <div class="refsect2"> <a name="gdk-color-equal"></a><h3>gdk_color_equal ()</h3> <pre class="programlisting"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a> gdk_color_equal (<em class="parameter"><code>const <a class="link" href="gdk3-Colors.html#GdkColor" title="GdkColor"><span class="type">GdkColor</span></a> *colora</code></em>, <em class="parameter"><code>const <a class="link" href="gdk3-Colors.html#GdkColor" title="GdkColor"><span class="type">GdkColor</span></a> *colorb</code></em>);</pre> <div class="warning"> <p><code class="literal">gdk_color_equal</code> has been deprecated since version 3.14 and should not be used in newly-written code.</p> <p>Use <a class="link" href="gdk3-RGBA-Colors.html#GdkRGBA" title="GdkRGBA"><span class="type">GdkRGBA</span></a></p> </div> <p>Compares two colors.</p> <div class="refsect3"> <a name="gdk-color-equal.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>colora</p></td> <td class="parameter_description"><p>a <a class="link" href="gdk3-Colors.html#GdkColor" title="GdkColor"><span class="type">GdkColor</span></a></p></td> <td class="parameter_annotations"> </td> </tr> <tr> <td class="parameter_name"><p>colorb</p></td> <td class="parameter_description"><p>another <a class="link" href="gdk3-Colors.html#GdkColor" title="GdkColor"><span class="type">GdkColor</span></a></p></td> <td class="parameter_annotations"> </td> </tr> </tbody> </table></div> </div> <div class="refsect3"> <a name="gdk-color-equal.returns"></a><h4>Returns</h4> <p> <a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#TRUE:CAPS"><code class="literal">TRUE</code></a> if the two colors compare equal</p> </div> </div> <hr> <div class="refsect2"> <a name="gdk-color-hash"></a><h3>gdk_color_hash ()</h3> <pre class="programlisting"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#guint"><span class="returnvalue">guint</span></a> gdk_color_hash (<em class="parameter"><code>const <a class="link" href="gdk3-Colors.html#GdkColor" title="GdkColor"><span class="type">GdkColor</span></a> *color</code></em>);</pre> <div class="warning"> <p><code class="literal">gdk_color_hash</code> has been deprecated since version 3.14 and should not be used in newly-written code.</p> <p>Use <a class="link" href="gdk3-RGBA-Colors.html#GdkRGBA" title="GdkRGBA"><span class="type">GdkRGBA</span></a></p> </div> <p>A hash function suitable for using for a hash table that stores <a href="gdk3-Colors.html#GdkColor"><span class="type">GdkColors</span></a>.</p> <div class="refsect3"> <a name="gdk-color-hash.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>color</p></td> <td class="parameter_description"><p>a <a class="link" href="gdk3-Colors.html#GdkColor" title="GdkColor"><span class="type">GdkColor</span></a></p></td> <td class="parameter_annotations"> </td> </tr></tbody> </table></div> </div> <div class="refsect3"> <a name="gdk-color-hash.returns"></a><h4>Returns</h4> <p> The hash function applied to <em class="parameter"><code>color</code></em> </p> </div> </div> <hr> <div class="refsect2"> <a name="gdk-color-to-string"></a><h3>gdk_color_to_string ()</h3> <pre class="programlisting"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gchar"><span class="returnvalue">gchar</span></a> * gdk_color_to_string (<em class="parameter"><code>const <a class="link" href="gdk3-Colors.html#GdkColor" title="GdkColor"><span class="type">GdkColor</span></a> *color</code></em>);</pre> <div class="warning"> <p><code class="literal">gdk_color_to_string</code> has been deprecated since version 3.14 and should not be used in newly-written code.</p> <p>Use <a class="link" href="gdk3-RGBA-Colors.html#GdkRGBA" title="GdkRGBA"><span class="type">GdkRGBA</span></a></p> </div> <p>Returns a textual specification of <em class="parameter"><code>color</code></em> in the hexadecimal form “#rrrrggggbbbb” where “r”, “g” and “b” are hex digits representing the red, green and blue components respectively.</p> <p>The returned string can be parsed by <a class="link" href="gdk3-Colors.html#gdk-color-parse" title="gdk_color_parse ()"><code class="function">gdk_color_parse()</code></a>.</p> <div class="refsect3"> <a name="gdk-color-to-string.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>color</p></td> <td class="parameter_description"><p>a <a class="link" href="gdk3-Colors.html#GdkColor" title="GdkColor"><span class="type">GdkColor</span></a></p></td> <td class="parameter_annotations"> </td> </tr></tbody> </table></div> </div> <div class="refsect3"> <a name="gdk-color-to-string.returns"></a><h4>Returns</h4> <p> a newly-allocated text string</p> </div> <p class="since">Since: 2.12</p> </div> </div> <div class="refsect1"> <a name="gdk3-Colors.other_details"></a><h2>Types and Values</h2> <div class="refsect2"> <a name="GdkColor"></a><h3>GdkColor</h3> <pre class="programlisting">typedef struct { guint32 pixel; guint16 red; guint16 green; guint16 blue; } GdkColor; </pre> <div class="warning"> <p><code class="literal">GdkColor</code> has been deprecated since version 3.14 and should not be used in newly-written code.</p> <p>Use <a class="link" href="gdk3-RGBA-Colors.html#GdkRGBA" title="GdkRGBA"><span class="type">GdkRGBA</span></a></p> </div> <p>A <a class="link" href="gdk3-Colors.html#GdkColor" title="GdkColor"><span class="type">GdkColor</span></a> is used to describe a color, similar to the XColor struct used in the X11 drawing API.</p> <div class="refsect3"> <a name="GdkColor.members"></a><h4>Members</h4> <div class="informaltable"><table class="informaltable" width="100%" border="0"> <colgroup> <col width="300px" class="struct_members_name"> <col class="struct_members_description"> <col width="200px" class="struct_members_annotations"> </colgroup> <tbody> <tr> <td class="struct_member_name"><p><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#guint32"><span class="type">guint32</span></a> <em class="structfield"><code><a name="GdkColor.pixel"></a>pixel</code></em>;</p></td> <td class="struct_member_description"><p>For allocated colors, the pixel value used to draw this color on the screen. Not used anymore.</p></td> <td class="struct_member_annotations"> </td> </tr> <tr> <td class="struct_member_name"><p><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#guint16"><span class="type">guint16</span></a> <em class="structfield"><code><a name="GdkColor.red"></a>red</code></em>;</p></td> <td class="struct_member_description"><p>The red component of the color. This is a value between 0 and 65535, with 65535 indicating full intensity</p></td> <td class="struct_member_annotations"> </td> </tr> <tr> <td class="struct_member_name"><p><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#guint16"><span class="type">guint16</span></a> <em class="structfield"><code><a name="GdkColor.green"></a>green</code></em>;</p></td> <td class="struct_member_description"><p>The green component of the color</p></td> <td class="struct_member_annotations"> </td> </tr> <tr> <td class="struct_member_name"><p><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#guint16"><span class="type">guint16</span></a> <em class="structfield"><code><a name="GdkColor.blue"></a>blue</code></em>;</p></td> <td class="struct_member_description"><p>The blue component of the color</p></td> <td class="struct_member_annotations"> </td> </tr> </tbody> </table></div> </div> </div> </div> </div> <div class="footer"> <hr>Generated by GTK-Doc V1.32</div> </body> </html>