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  • Committer: Bazaar Package Importer
  • Author(s): Sebastien Bacher
  • Date: 2005-04-04 14:51:23 UTC
  • Revision ID: james.westby@ubuntu.com-20050404145123-9py049eeelfymur8
Tags: upstream-2.2.2
Import upstream version 2.2.2

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devel-docs/libgimpcolor/xml/gimprgb.xml
 
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<?xml version="1.0" encoding="UTF-8" ?>
 
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<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.1.2//EN" 
 
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               "http://www.oasis-open.org/docbook/xml/4.1.2/docbookx.dtd">
 
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<refentry id="libgimpcolor-GimpRGB">
 
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<refmeta>
 
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<refentrytitle>GimpRGB</refentrytitle>
 
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<manvolnum>3</manvolnum>
 
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<refmiscinfo>LIBGIMPCOLOR Library</refmiscinfo>
 
10
</refmeta>
 
11
 
 
12
<refnamediv>
 
13
<refname>GimpRGB</refname><refpurpose>Definitions and Functions relating to RGB colors.</refpurpose>
 
14
</refnamediv>
 
15
 
 
16
<refsynopsisdiv><title>Synopsis</title>
 
17
 
 
18
<synopsis>
 
19
 
 
20
 
 
21
 
 
22
struct      <link linkend="GimpRGB">GimpRGB</link>;
 
23
enum        <link linkend="GimpRGBCompositeMode">GimpRGBCompositeMode</link>;
 
24
<link linkend="void">void</link>        <link linkend="gimp-rgb-set">gimp_rgb_set</link>                    (<link linkend="GimpRGB">GimpRGB</link> *rgb,
 
25
                                             <link linkend="gdouble">gdouble</link> red,
 
26
                                             <link linkend="gdouble">gdouble</link> green,
 
27
                                             <link linkend="gdouble">gdouble</link> blue);
 
28
<link linkend="void">void</link>        <link linkend="gimp-rgb-set-alpha">gimp_rgb_set_alpha</link>              (<link linkend="GimpRGB">GimpRGB</link> *rgb,
 
29
                                             <link linkend="gdouble">gdouble</link> alpha);
 
30
<link linkend="void">void</link>        <link linkend="gimp-rgb-set-uchar">gimp_rgb_set_uchar</link>              (<link linkend="GimpRGB">GimpRGB</link> *rgb,
 
31
                                             <link linkend="guchar">guchar</link> red,
 
32
                                             <link linkend="guchar">guchar</link> green,
 
33
                                             <link linkend="guchar">guchar</link> blue);
 
34
<link linkend="void">void</link>        <link linkend="gimp-rgb-get-uchar">gimp_rgb_get_uchar</link>              (const <link linkend="GimpRGB">GimpRGB</link> *rgb,
 
35
                                             <link linkend="guchar">guchar</link> *red,
 
36
                                             <link linkend="guchar">guchar</link> *green,
 
37
                                             <link linkend="guchar">guchar</link> *blue);
 
38
<link linkend="gboolean">gboolean</link>    <link linkend="gimp-rgb-parse-name">gimp_rgb_parse_name</link>             (<link linkend="GimpRGB">GimpRGB</link> *rgb,
 
39
                                             const <link linkend="gchar">gchar</link> *name,
 
40
                                             <link linkend="gint">gint</link> len);
 
41
<link linkend="gboolean">gboolean</link>    <link linkend="gimp-rgb-parse-hex">gimp_rgb_parse_hex</link>              (<link linkend="GimpRGB">GimpRGB</link> *rgb,
 
42
                                             const <link linkend="gchar">gchar</link> *hex,
 
43
                                             <link linkend="gint">gint</link> len);
 
44
<link linkend="gboolean">gboolean</link>    <link linkend="gimp-rgb-parse-css">gimp_rgb_parse_css</link>              (<link linkend="GimpRGB">GimpRGB</link> *rgb,
 
45
                                             const <link linkend="gchar">gchar</link> *css,
 
46
                                             <link linkend="gint">gint</link> len);
 
47
<link linkend="gint">gint</link>        <link linkend="gimp-rgb-list-names">gimp_rgb_list_names</link>             (const <link linkend="gchar">gchar</link> ***names,
 
48
                                             <link linkend="GimpRGB">GimpRGB</link> **colors);
 
49
<link linkend="void">void</link>        <link linkend="gimp-rgb-add">gimp_rgb_add</link>                    (<link linkend="GimpRGB">GimpRGB</link> *rgb1,
 
50
                                             const <link linkend="GimpRGB">GimpRGB</link> *rgb2);
 
51
<link linkend="void">void</link>        <link linkend="gimp-rgb-subtract">gimp_rgb_subtract</link>               (<link linkend="GimpRGB">GimpRGB</link> *rgb1,
 
52
                                             const <link linkend="GimpRGB">GimpRGB</link> *rgb2);
 
53
<link linkend="void">void</link>        <link linkend="gimp-rgb-multiply">gimp_rgb_multiply</link>               (<link linkend="GimpRGB">GimpRGB</link> *rgb1,
 
54
                                             <link linkend="gdouble">gdouble</link> factor);
 
55
<link linkend="gdouble">gdouble</link>     <link linkend="gimp-rgb-distance">gimp_rgb_distance</link>               (const <link linkend="GimpRGB">GimpRGB</link> *rgb1,
 
56
                                             const <link linkend="GimpRGB">GimpRGB</link> *rgb2);
 
57
<link linkend="gdouble">gdouble</link>     <link linkend="gimp-rgb-max">gimp_rgb_max</link>                    (const <link linkend="GimpRGB">GimpRGB</link> *rgb);
 
58
<link linkend="gdouble">gdouble</link>     <link linkend="gimp-rgb-min">gimp_rgb_min</link>                    (const <link linkend="GimpRGB">GimpRGB</link> *rgb);
 
59
<link linkend="void">void</link>        <link linkend="gimp-rgb-clamp">gimp_rgb_clamp</link>                  (<link linkend="GimpRGB">GimpRGB</link> *rgb);
 
60
<link linkend="void">void</link>        <link linkend="gimp-rgb-gamma">gimp_rgb_gamma</link>                  (<link linkend="GimpRGB">GimpRGB</link> *rgb,
 
61
                                             <link linkend="gdouble">gdouble</link> gamma);
 
62
<link linkend="gdouble">gdouble</link>     <link linkend="gimp-rgb-intensity">gimp_rgb_intensity</link>              (const <link linkend="GimpRGB">GimpRGB</link> *rgb);
 
63
<link linkend="guchar">guchar</link>      <link linkend="gimp-rgb-intensity-uchar">gimp_rgb_intensity_uchar</link>        (const <link linkend="GimpRGB">GimpRGB</link> *rgb);
 
64
<link linkend="void">void</link>        <link linkend="gimp-rgb-composite">gimp_rgb_composite</link>              (<link linkend="GimpRGB">GimpRGB</link> *color1,
 
65
                                             const <link linkend="GimpRGB">GimpRGB</link> *color2,
 
66
                                             <link linkend="GimpRGBCompositeMode">GimpRGBCompositeMode</link> mode);
 
67
<link linkend="void">void</link>        <link linkend="gimp-rgba-set">gimp_rgba_set</link>                   (<link linkend="GimpRGB">GimpRGB</link> *rgba,
 
68
                                             <link linkend="gdouble">gdouble</link> red,
 
69
                                             <link linkend="gdouble">gdouble</link> green,
 
70
                                             <link linkend="gdouble">gdouble</link> blue,
 
71
                                             <link linkend="gdouble">gdouble</link> alpha);
 
72
<link linkend="void">void</link>        <link linkend="gimp-rgba-set-uchar">gimp_rgba_set_uchar</link>             (<link linkend="GimpRGB">GimpRGB</link> *rgba,
 
73
                                             <link linkend="guchar">guchar</link> red,
 
74
                                             <link linkend="guchar">guchar</link> green,
 
75
                                             <link linkend="guchar">guchar</link> blue,
 
76
                                             <link linkend="guchar">guchar</link> alpha);
 
77
<link linkend="void">void</link>        <link linkend="gimp-rgba-get-uchar">gimp_rgba_get_uchar</link>             (const <link linkend="GimpRGB">GimpRGB</link> *rgba,
 
78
                                             <link linkend="guchar">guchar</link> *red,
 
79
                                             <link linkend="guchar">guchar</link> *green,
 
80
                                             <link linkend="guchar">guchar</link> *blue,
 
81
                                             <link linkend="guchar">guchar</link> *alpha);
 
82
<link linkend="gboolean">gboolean</link>    <link linkend="gimp-rgba-parse-css">gimp_rgba_parse_css</link>             (<link linkend="GimpRGB">GimpRGB</link> *rgba,
 
83
                                             const <link linkend="gchar">gchar</link> *css,
 
84
                                             <link linkend="gint">gint</link> len);
 
85
<link linkend="void">void</link>        <link linkend="gimp-rgba-add">gimp_rgba_add</link>                   (<link linkend="GimpRGB">GimpRGB</link> *rgba1,
 
86
                                             const <link linkend="GimpRGB">GimpRGB</link> *rgba2);
 
87
<link linkend="void">void</link>        <link linkend="gimp-rgba-subtract">gimp_rgba_subtract</link>              (<link linkend="GimpRGB">GimpRGB</link> *rgba1,
 
88
                                             const <link linkend="GimpRGB">GimpRGB</link> *rgba2);
 
89
<link linkend="void">void</link>        <link linkend="gimp-rgba-multiply">gimp_rgba_multiply</link>              (<link linkend="GimpRGB">GimpRGB</link> *rgba,
 
90
                                             <link linkend="gdouble">gdouble</link> factor);
 
91
<link linkend="gdouble">gdouble</link>     <link linkend="gimp-rgba-distance">gimp_rgba_distance</link>              (const <link linkend="GimpRGB">GimpRGB</link> *rgba1,
 
92
                                             const <link linkend="GimpRGB">GimpRGB</link> *rgba2);
 
93
#define     <link linkend="GIMP-RGB-INTENSITY-CAPS">GIMP_RGB_INTENSITY</link>              (r,g,b)
 
94
#define     <link linkend="GIMP-RGB-INTENSITY-RED-CAPS">GIMP_RGB_INTENSITY_RED</link>
 
95
#define     <link linkend="GIMP-RGB-INTENSITY-GREEN-CAPS">GIMP_RGB_INTENSITY_GREEN</link>
 
96
#define     <link linkend="GIMP-RGB-INTENSITY-BLUE-CAPS">GIMP_RGB_INTENSITY_BLUE</link>
 
97
#define     <link linkend="GIMP-TYPE-RGB-CAPS">GIMP_TYPE_RGB</link>
 
98
#define     <link linkend="GIMP-VALUE-HOLDS-RGB-CAPS">GIMP_VALUE_HOLDS_RGB</link>            (value)
 
99
 
 
100
</synopsis>
 
101
</refsynopsisdiv>
 
102
 
 
103
 
 
104
 
 
105
 
 
106
 
 
107
 
 
108
 
 
109
 
 
110
 
 
111
<refsect1>
 
112
<title>Description</title>
 
113
<para>
 
114
Definitions and Functions relating to RGB colors.
 
115
</para>
 
116
</refsect1>
 
117
 
 
118
<refsect1>
 
119
<title>Details</title>
 
120
<refsect2>
 
121
<title><anchor id="GimpRGB"/>struct GimpRGB</title>
 
122
<indexterm><primary>GimpRGB</primary></indexterm><programlisting>struct GimpRGB {
 
123
 
 
124
  gdouble r, g, b, a;
 
125
};
 
126
</programlisting>
 
127
<para>
 
128
 
 
129
</para></refsect2>
 
130
<refsect2>
 
131
<title><anchor id="GimpRGBCompositeMode"/>enum GimpRGBCompositeMode</title>
 
132
<indexterm><primary>GimpRGBCompositeMode</primary></indexterm><programlisting>typedef enum
 
133
{
 
134
  GIMP_RGB_COMPOSITE_NONE = 0,
 
135
  GIMP_RGB_COMPOSITE_NORMAL,
 
136
  GIMP_RGB_COMPOSITE_BEHIND
 
137
} GimpRGBCompositeMode;
 
138
</programlisting>
 
139
<para>
 
140
 
 
141
</para></refsect2>
 
142
<refsect2>
 
143
<title><anchor id="gimp-rgb-set"/>gimp_rgb_set ()</title>
 
144
<indexterm><primary>gimp_rgb_set</primary></indexterm><programlisting><link linkend="void">void</link>        gimp_rgb_set                    (<link linkend="GimpRGB">GimpRGB</link> *rgb,
 
145
                                             <link linkend="gdouble">gdouble</link> red,
 
146
                                             <link linkend="gdouble">gdouble</link> green,
 
147
                                             <link linkend="gdouble">gdouble</link> blue);</programlisting>
 
148
<para>
 
149
Sets the red, green and blue components of <parameter>rgb</parameter> and leaves the
 
150
alpha component unchanged. The color values should be between 0.0
 
151
and 1.0 but there is no check to enforce this and the values are
 
152
set exactly as they are passed in.</para>
 
153
<para>
 
154
 
 
155
</para><variablelist role="params">
 
156
<varlistentry><term><parameter>rgb</parameter>&nbsp;:</term>
 
157
<listitem><simpara> a <link linkend="GimpRGB"><type>GimpRGB</type></link> struct
 
158
</simpara></listitem></varlistentry>
 
159
<varlistentry><term><parameter>red</parameter>&nbsp;:</term>
 
160
<listitem><simpara>
 
161
</simpara></listitem></varlistentry>
 
162
<varlistentry><term><parameter>green</parameter>&nbsp;:</term>
 
163
<listitem><simpara>
 
164
</simpara></listitem></varlistentry>
 
165
<varlistentry><term><parameter>blue</parameter>&nbsp;:</term>
 
166
<listitem><simpara>
 
167
</simpara></listitem></varlistentry>
 
168
</variablelist></refsect2>
 
169
<refsect2>
 
170
<title><anchor id="gimp-rgb-set-alpha"/>gimp_rgb_set_alpha ()</title>
 
171
<indexterm><primary>gimp_rgb_set_alpha</primary></indexterm><programlisting><link linkend="void">void</link>        gimp_rgb_set_alpha              (<link linkend="GimpRGB">GimpRGB</link> *rgb,
 
172
                                             <link linkend="gdouble">gdouble</link> alpha);</programlisting>
 
173
<para>
 
174
Sets the alpha component of <parameter>rgb</parameter> and leaves the RGB components unchanged.</para>
 
175
<para>
 
176
 
 
177
</para><variablelist role="params">
 
178
<varlistentry><term><parameter>rgb</parameter>&nbsp;:</term>
 
179
<listitem><simpara> a <link linkend="GimpRGB"><type>GimpRGB</type></link> struct
 
180
</simpara></listitem></varlistentry>
 
181
<varlistentry><term><parameter>alpha</parameter>&nbsp;:</term>
 
182
<listitem><simpara>
 
183
</simpara></listitem></varlistentry>
 
184
</variablelist></refsect2>
 
185
<refsect2>
 
186
<title><anchor id="gimp-rgb-set-uchar"/>gimp_rgb_set_uchar ()</title>
 
187
<indexterm><primary>gimp_rgb_set_uchar</primary></indexterm><programlisting><link linkend="void">void</link>        gimp_rgb_set_uchar              (<link linkend="GimpRGB">GimpRGB</link> *rgb,
 
188
                                             <link linkend="guchar">guchar</link> red,
 
189
                                             <link linkend="guchar">guchar</link> green,
 
190
                                             <link linkend="guchar">guchar</link> blue);</programlisting>
 
191
<para>
 
192
Sets the red, green and blue components of <parameter>rgb</parameter> from 8bit values
 
193
(0 to 255) and leaves the alpha component unchanged.</para>
 
194
<para>
 
195
 
 
196
</para><variablelist role="params">
 
197
<varlistentry><term><parameter>rgb</parameter>&nbsp;:</term>
 
198
<listitem><simpara> a <link linkend="GimpRGB"><type>GimpRGB</type></link> struct
 
199
</simpara></listitem></varlistentry>
 
200
<varlistentry><term><parameter>red</parameter>&nbsp;:</term>
 
201
<listitem><simpara>
 
202
</simpara></listitem></varlistentry>
 
203
<varlistentry><term><parameter>green</parameter>&nbsp;:</term>
 
204
<listitem><simpara>
 
205
</simpara></listitem></varlistentry>
 
206
<varlistentry><term><parameter>blue</parameter>&nbsp;:</term>
 
207
<listitem><simpara>
 
208
</simpara></listitem></varlistentry>
 
209
</variablelist></refsect2>
 
210
<refsect2>
 
211
<title><anchor id="gimp-rgb-get-uchar"/>gimp_rgb_get_uchar ()</title>
 
212
<indexterm><primary>gimp_rgb_get_uchar</primary></indexterm><programlisting><link linkend="void">void</link>        gimp_rgb_get_uchar              (const <link linkend="GimpRGB">GimpRGB</link> *rgb,
 
213
                                             <link linkend="guchar">guchar</link> *red,
 
214
                                             <link linkend="guchar">guchar</link> *green,
 
215
                                             <link linkend="guchar">guchar</link> *blue);</programlisting>
 
216
<para>
 
217
 
 
218
</para><variablelist role="params">
 
219
<varlistentry><term><parameter>rgb</parameter>&nbsp;:</term>
 
220
<listitem><simpara>
 
221
</simpara></listitem></varlistentry>
 
222
<varlistentry><term><parameter>red</parameter>&nbsp;:</term>
 
223
<listitem><simpara>
 
224
</simpara></listitem></varlistentry>
 
225
<varlistentry><term><parameter>green</parameter>&nbsp;:</term>
 
226
<listitem><simpara>
 
227
</simpara></listitem></varlistentry>
 
228
<varlistentry><term><parameter>blue</parameter>&nbsp;:</term>
 
229
<listitem><simpara>
 
230
 
 
231
 
 
232
</simpara></listitem></varlistentry>
 
233
</variablelist></refsect2>
 
234
<refsect2>
 
235
<title><anchor id="gimp-rgb-parse-name"/>gimp_rgb_parse_name ()</title>
 
236
<indexterm><primary>gimp_rgb_parse_name</primary></indexterm><programlisting><link linkend="gboolean">gboolean</link>    gimp_rgb_parse_name             (<link linkend="GimpRGB">GimpRGB</link> *rgb,
 
237
                                             const <link linkend="gchar">gchar</link> *name,
 
238
                                             <link linkend="gint">gint</link> len);</programlisting>
 
239
<para>
 
240
Attempts to parse a color name. This function accepts RGB hex
 
241
values or <ulink url="http://www.w3.org/TR/SVG/types.html">SVG 1.0
 
242
color keywords</ulink>.  The format of an RGB value in hexadecimal
 
243
notation is a '#' immediately followed by either three or six
 
244
hexadecimal characters.
 
245
</para>
 
246
<para>
 
247
This funcion does not touch the alpha component of <parameter>rgb</parameter>.</para>
 
248
<para>
 
249
 
 
250
</para><variablelist role="params">
 
251
<varlistentry><term><parameter>rgb</parameter>&nbsp;:</term>
 
252
<listitem><simpara>  a <link linkend="GimpRGB"><type>GimpRGB</type></link> struct used to return the parsed color
 
253
</simpara></listitem></varlistentry>
 
254
<varlistentry><term><parameter>name</parameter>&nbsp;:</term>
 
255
<listitem><simpara> a color name (in UTF-8 encoding)
 
256
</simpara></listitem></varlistentry>
 
257
<varlistentry><term><parameter>len</parameter>&nbsp;:</term>
 
258
<listitem><simpara>  the length of <parameter>name</parameter>, in bytes. or -1 if <parameter>name</parameter> is nul-terminated
 
259
</simpara></listitem></varlistentry>
 
260
<varlistentry><term><emphasis>Returns</emphasis> :</term><listitem><simpara> <literal>TRUE</literal> if <parameter>name</parameter> was parsed successfully and <parameter>rgb</parameter> has been
 
261
              set, <literal>FALSE</literal> otherwise
 
262
 
 
263
</simpara></listitem></varlistentry>
 
264
</variablelist><para>Since  GIMP 2.2
 
265
</para></refsect2>
 
266
<refsect2>
 
267
<title><anchor id="gimp-rgb-parse-hex"/>gimp_rgb_parse_hex ()</title>
 
268
<indexterm><primary>gimp_rgb_parse_hex</primary></indexterm><programlisting><link linkend="gboolean">gboolean</link>    gimp_rgb_parse_hex              (<link linkend="GimpRGB">GimpRGB</link> *rgb,
 
269
                                             const <link linkend="gchar">gchar</link> *hex,
 
270
                                             <link linkend="gint">gint</link> len);</programlisting>
 
271
<para>
 
272
Attempts to parse a string describing a color in RGB value in
 
273
hexadecimal notation (optionally prefixed with a '#').
 
274
</para>
 
275
<para>
 
276
This funcion does not touch the alpha component of <parameter>rgb</parameter>.</para>
 
277
<para>
 
278
 
 
279
</para><variablelist role="params">
 
280
<varlistentry><term><parameter>rgb</parameter>&nbsp;:</term>
 
281
<listitem><simpara> a <link linkend="GimpRGB"><type>GimpRGB</type></link> struct used to return the parsed color
 
282
</simpara></listitem></varlistentry>
 
283
<varlistentry><term><parameter>hex</parameter>&nbsp;:</term>
 
284
<listitem><simpara> a string describing a color in hexadecimal notation
 
285
</simpara></listitem></varlistentry>
 
286
<varlistentry><term><parameter>len</parameter>&nbsp;:</term>
 
287
<listitem><simpara> the length of <parameter>hex</parameter>, in bytes. or -1 if <parameter>hex</parameter> is nul-terminated
 
288
</simpara></listitem></varlistentry>
 
289
<varlistentry><term><emphasis>Returns</emphasis> :</term><listitem><simpara> <literal>TRUE</literal> if <parameter>hex</parameter> was parsed successfully and <parameter>rgb</parameter> has been
 
290
              set, <literal>FALSE</literal> otherwise
 
291
 
 
292
</simpara></listitem></varlistentry>
 
293
</variablelist><para>Since  GIMP 2.2
 
294
</para></refsect2>
 
295
<refsect2>
 
296
<title><anchor id="gimp-rgb-parse-css"/>gimp_rgb_parse_css ()</title>
 
297
<indexterm><primary>gimp_rgb_parse_css</primary></indexterm><programlisting><link linkend="gboolean">gboolean</link>    gimp_rgb_parse_css              (<link linkend="GimpRGB">GimpRGB</link> *rgb,
 
298
                                             const <link linkend="gchar">gchar</link> *css,
 
299
                                             <link linkend="gint">gint</link> len);</programlisting>
 
300
<para>
 
301
Attempts to parse a string describing a color in RGB value in CSS
 
302
notation. This can be either a numerical representation
 
303
(<code>rgb(255,0,0)</code> or <code>rgb(100%,0%,0%)</code>) or
 
304
a hexadecimal notation as parsed by <link linkend="gimp-rgb-parse-hex"><function>gimp_rgb_parse_hex()</function></link>
 
305
(<code>#<link linkend="ff0000"><type>ff0000</type></link></code>) or a color name as parsed by
 
306
<link linkend="gimp-rgb-parse-name"><function>gimp_rgb_parse_name()</function></link> (<code>red</code>).
 
307
</para>
 
308
<para>
 
309
This funcion does not touch the alpha component of <parameter>rgb</parameter>.</para>
 
310
<para>
 
311
 
 
312
</para><variablelist role="params">
 
313
<varlistentry><term><parameter>rgb</parameter>&nbsp;:</term>
 
314
<listitem><simpara> a <link linkend="GimpRGB"><type>GimpRGB</type></link> struct used to return the parsed color
 
315
</simpara></listitem></varlistentry>
 
316
<varlistentry><term><parameter>css</parameter>&nbsp;:</term>
 
317
<listitem><simpara> a string describing a color in CSS notation
 
318
</simpara></listitem></varlistentry>
 
319
<varlistentry><term><parameter>len</parameter>&nbsp;:</term>
 
320
<listitem><simpara> the length of <parameter>hex</parameter>, in bytes. or -1 if <parameter>hex</parameter> is nul-terminated
 
321
</simpara></listitem></varlistentry>
 
322
<varlistentry><term><emphasis>Returns</emphasis> :</term><listitem><simpara> <literal>TRUE</literal> if <parameter>css</parameter> was parsed successfully and <parameter>rgb</parameter> has been
 
323
              set, <literal>FALSE</literal> otherwise
 
324
 
 
325
</simpara></listitem></varlistentry>
 
326
</variablelist><para>Since  GIMP 2.2
 
327
</para></refsect2>
 
328
<refsect2>
 
329
<title><anchor id="gimp-rgb-list-names"/>gimp_rgb_list_names ()</title>
 
330
<indexterm><primary>gimp_rgb_list_names</primary></indexterm><programlisting><link linkend="gint">gint</link>        gimp_rgb_list_names             (const <link linkend="gchar">gchar</link> ***names,
 
331
                                             <link linkend="GimpRGB">GimpRGB</link> **colors);</programlisting>
 
332
<para>
 
333
Allows to retrieve the list of <ulink
 
334
url="http://www.w3.org/TR/SVG/types.html">SVG 1.0 color
 
335
keywords</ulink> that is used by <link linkend="gimp-rgb-parse-name"><function>gimp_rgb_parse_name()</function></link>.
 
336
</para>
 
337
<para>
 
338
The returned strings are const and must not be freed. Only the two
 
339
arrays are allocated dynamically. You must call <link linkend="g-free"><function>g_free()</function></link> on the
 
340
<parameter>names</parameter> and <parameter>colors</parameter> arrays when they are not any longer needed.</para>
 
341
<para>
 
342
 
 
343
</para><variablelist role="params">
 
344
<varlistentry><term><parameter>names</parameter>&nbsp;:</term>
 
345
<listitem><simpara>  return location for an array of color names
 
346
</simpara></listitem></varlistentry>
 
347
<varlistentry><term><parameter>colors</parameter>&nbsp;:</term>
 
348
<listitem><simpara> return location for an array of GimpRGB structs
 
349
</simpara></listitem></varlistentry>
 
350
<varlistentry><term><emphasis>Returns</emphasis> :</term><listitem><simpara> the number of named colors
 
351
              (i.e. the length of the returned arrays)
 
352
 
 
353
</simpara></listitem></varlistentry>
 
354
</variablelist><para>Since  GIMP 2.2
 
355
</para></refsect2>
 
356
<refsect2>
 
357
<title><anchor id="gimp-rgb-add"/>gimp_rgb_add ()</title>
 
358
<indexterm><primary>gimp_rgb_add</primary></indexterm><programlisting><link linkend="void">void</link>        gimp_rgb_add                    (<link linkend="GimpRGB">GimpRGB</link> *rgb1,
 
359
                                             const <link linkend="GimpRGB">GimpRGB</link> *rgb2);</programlisting>
 
360
<para>
 
361
 
 
362
</para><variablelist role="params">
 
363
<varlistentry><term><parameter>rgb1</parameter>&nbsp;:</term>
 
364
<listitem><simpara>
 
365
</simpara></listitem></varlistentry>
 
366
<varlistentry><term><parameter>rgb2</parameter>&nbsp;:</term>
 
367
<listitem><simpara>
 
368
 
 
369
 
 
370
</simpara></listitem></varlistentry>
 
371
</variablelist></refsect2>
 
372
<refsect2>
 
373
<title><anchor id="gimp-rgb-subtract"/>gimp_rgb_subtract ()</title>
 
374
<indexterm><primary>gimp_rgb_subtract</primary></indexterm><programlisting><link linkend="void">void</link>        gimp_rgb_subtract               (<link linkend="GimpRGB">GimpRGB</link> *rgb1,
 
375
                                             const <link linkend="GimpRGB">GimpRGB</link> *rgb2);</programlisting>
 
376
<para>
 
377
 
 
378
</para><variablelist role="params">
 
379
<varlistentry><term><parameter>rgb1</parameter>&nbsp;:</term>
 
380
<listitem><simpara>
 
381
</simpara></listitem></varlistentry>
 
382
<varlistentry><term><parameter>rgb2</parameter>&nbsp;:</term>
 
383
<listitem><simpara>
 
384
 
 
385
 
 
386
</simpara></listitem></varlistentry>
 
387
</variablelist></refsect2>
 
388
<refsect2>
 
389
<title><anchor id="gimp-rgb-multiply"/>gimp_rgb_multiply ()</title>
 
390
<indexterm><primary>gimp_rgb_multiply</primary></indexterm><programlisting><link linkend="void">void</link>        gimp_rgb_multiply               (<link linkend="GimpRGB">GimpRGB</link> *rgb1,
 
391
                                             <link linkend="gdouble">gdouble</link> factor);</programlisting>
 
392
<para>
 
393
 
 
394
</para><variablelist role="params">
 
395
<varlistentry><term><parameter>rgb1</parameter>&nbsp;:</term>
 
396
<listitem><simpara>
 
397
</simpara></listitem></varlistentry>
 
398
<varlistentry><term><parameter>factor</parameter>&nbsp;:</term>
 
399
<listitem><simpara>
 
400
 
 
401
 
 
402
</simpara></listitem></varlistentry>
 
403
</variablelist></refsect2>
 
404
<refsect2>
 
405
<title><anchor id="gimp-rgb-distance"/>gimp_rgb_distance ()</title>
 
406
<indexterm><primary>gimp_rgb_distance</primary></indexterm><programlisting><link linkend="gdouble">gdouble</link>     gimp_rgb_distance               (const <link linkend="GimpRGB">GimpRGB</link> *rgb1,
 
407
                                             const <link linkend="GimpRGB">GimpRGB</link> *rgb2);</programlisting>
 
408
<para>
 
409
 
 
410
</para><variablelist role="params">
 
411
<varlistentry><term><parameter>rgb1</parameter>&nbsp;:</term>
 
412
<listitem><simpara>
 
413
</simpara></listitem></varlistentry>
 
414
<varlistentry><term><parameter>rgb2</parameter>&nbsp;:</term>
 
415
<listitem><simpara>
 
416
</simpara></listitem></varlistentry>
 
417
<varlistentry><term><emphasis>Returns</emphasis> :</term><listitem><simpara>
 
418
 
 
419
 
 
420
</simpara></listitem></varlistentry>
 
421
</variablelist></refsect2>
 
422
<refsect2>
 
423
<title><anchor id="gimp-rgb-max"/>gimp_rgb_max ()</title>
 
424
<indexterm><primary>gimp_rgb_max</primary></indexterm><programlisting><link linkend="gdouble">gdouble</link>     gimp_rgb_max                    (const <link linkend="GimpRGB">GimpRGB</link> *rgb);</programlisting>
 
425
<para>
 
426
 
 
427
</para><variablelist role="params">
 
428
<varlistentry><term><parameter>rgb</parameter>&nbsp;:</term>
 
429
<listitem><simpara>
 
430
</simpara></listitem></varlistentry>
 
431
<varlistentry><term><emphasis>Returns</emphasis> :</term><listitem><simpara>
 
432
 
 
433
 
 
434
</simpara></listitem></varlistentry>
 
435
</variablelist></refsect2>
 
436
<refsect2>
 
437
<title><anchor id="gimp-rgb-min"/>gimp_rgb_min ()</title>
 
438
<indexterm><primary>gimp_rgb_min</primary></indexterm><programlisting><link linkend="gdouble">gdouble</link>     gimp_rgb_min                    (const <link linkend="GimpRGB">GimpRGB</link> *rgb);</programlisting>
 
439
<para>
 
440
 
 
441
</para><variablelist role="params">
 
442
<varlistentry><term><parameter>rgb</parameter>&nbsp;:</term>
 
443
<listitem><simpara>
 
444
</simpara></listitem></varlistentry>
 
445
<varlistentry><term><emphasis>Returns</emphasis> :</term><listitem><simpara>
 
446
 
 
447
 
 
448
</simpara></listitem></varlistentry>
 
449
</variablelist></refsect2>
 
450
<refsect2>
 
451
<title><anchor id="gimp-rgb-clamp"/>gimp_rgb_clamp ()</title>
 
452
<indexterm><primary>gimp_rgb_clamp</primary></indexterm><programlisting><link linkend="void">void</link>        gimp_rgb_clamp                  (<link linkend="GimpRGB">GimpRGB</link> *rgb);</programlisting>
 
453
<para>
 
454
 
 
455
</para><variablelist role="params">
 
456
<varlistentry><term><parameter>rgb</parameter>&nbsp;:</term>
 
457
<listitem><simpara>
 
458
 
 
459
 
 
460
</simpara></listitem></varlistentry>
 
461
</variablelist></refsect2>
 
462
<refsect2>
 
463
<title><anchor id="gimp-rgb-gamma"/>gimp_rgb_gamma ()</title>
 
464
<indexterm><primary>gimp_rgb_gamma</primary></indexterm><programlisting><link linkend="void">void</link>        gimp_rgb_gamma                  (<link linkend="GimpRGB">GimpRGB</link> *rgb,
 
465
                                             <link linkend="gdouble">gdouble</link> gamma);</programlisting>
 
466
<para>
 
467
 
 
468
</para><variablelist role="params">
 
469
<varlistentry><term><parameter>rgb</parameter>&nbsp;:</term>
 
470
<listitem><simpara>
 
471
</simpara></listitem></varlistentry>
 
472
<varlistentry><term><parameter>gamma</parameter>&nbsp;:</term>
 
473
<listitem><simpara>
 
474
 
 
475
 
 
476
</simpara></listitem></varlistentry>
 
477
</variablelist></refsect2>
 
478
<refsect2>
 
479
<title><anchor id="gimp-rgb-intensity"/>gimp_rgb_intensity ()</title>
 
480
<indexterm><primary>gimp_rgb_intensity</primary></indexterm><programlisting><link linkend="gdouble">gdouble</link>     gimp_rgb_intensity              (const <link linkend="GimpRGB">GimpRGB</link> *rgb);</programlisting>
 
481
<para>
 
482
 
 
483
</para><variablelist role="params">
 
484
<varlistentry><term><parameter>rgb</parameter>&nbsp;:</term>
 
485
<listitem><simpara>
 
486
</simpara></listitem></varlistentry>
 
487
<varlistentry><term><emphasis>Returns</emphasis> :</term><listitem><simpara>
 
488
 
 
489
 
 
490
</simpara></listitem></varlistentry>
 
491
</variablelist></refsect2>
 
492
<refsect2>
 
493
<title><anchor id="gimp-rgb-intensity-uchar"/>gimp_rgb_intensity_uchar ()</title>
 
494
<indexterm><primary>gimp_rgb_intensity_uchar</primary></indexterm><programlisting><link linkend="guchar">guchar</link>      gimp_rgb_intensity_uchar        (const <link linkend="GimpRGB">GimpRGB</link> *rgb);</programlisting>
 
495
<para>
 
496
 
 
497
</para><variablelist role="params">
 
498
<varlistentry><term><parameter>rgb</parameter>&nbsp;:</term>
 
499
<listitem><simpara>
 
500
</simpara></listitem></varlistentry>
 
501
<varlistentry><term><emphasis>Returns</emphasis> :</term><listitem><simpara>
 
502
 
 
503
 
 
504
</simpara></listitem></varlistentry>
 
505
</variablelist></refsect2>
 
506
<refsect2>
 
507
<title><anchor id="gimp-rgb-composite"/>gimp_rgb_composite ()</title>
 
508
<indexterm><primary>gimp_rgb_composite</primary></indexterm><programlisting><link linkend="void">void</link>        gimp_rgb_composite              (<link linkend="GimpRGB">GimpRGB</link> *color1,
 
509
                                             const <link linkend="GimpRGB">GimpRGB</link> *color2,
 
510
                                             <link linkend="GimpRGBCompositeMode">GimpRGBCompositeMode</link> mode);</programlisting>
 
511
<para>
 
512
 
 
513
</para><variablelist role="params">
 
514
<varlistentry><term><parameter>color1</parameter>&nbsp;:</term>
 
515
<listitem><simpara>
 
516
</simpara></listitem></varlistentry>
 
517
<varlistentry><term><parameter>color2</parameter>&nbsp;:</term>
 
518
<listitem><simpara>
 
519
</simpara></listitem></varlistentry>
 
520
<varlistentry><term><parameter>mode</parameter>&nbsp;:</term>
 
521
<listitem><simpara>
 
522
 
 
523
 
 
524
</simpara></listitem></varlistentry>
 
525
</variablelist></refsect2>
 
526
<refsect2>
 
527
<title><anchor id="gimp-rgba-set"/>gimp_rgba_set ()</title>
 
528
<indexterm><primary>gimp_rgba_set</primary></indexterm><programlisting><link linkend="void">void</link>        gimp_rgba_set                   (<link linkend="GimpRGB">GimpRGB</link> *rgba,
 
529
                                             <link linkend="gdouble">gdouble</link> red,
 
530
                                             <link linkend="gdouble">gdouble</link> green,
 
531
                                             <link linkend="gdouble">gdouble</link> blue,
 
532
                                             <link linkend="gdouble">gdouble</link> alpha);</programlisting>
 
533
<para>
 
534
Sets the red, green, blue and alpha components of <parameter>rgb</parameter>. The values
 
535
should be between 0.0 and 1.0 but there is no check to enforce this
 
536
and the values are set exactly as they are passed in.</para>
 
537
<para>
 
538
 
 
539
</para><variablelist role="params">
 
540
<varlistentry><term><parameter>rgba</parameter>&nbsp;:</term>
 
541
<listitem><simpara> a <link linkend="GimpRGB"><type>GimpRGB</type></link> struct
 
542
</simpara></listitem></varlistentry>
 
543
<varlistentry><term><parameter>red</parameter>&nbsp;:</term>
 
544
<listitem><simpara>
 
545
</simpara></listitem></varlistentry>
 
546
<varlistentry><term><parameter>green</parameter>&nbsp;:</term>
 
547
<listitem><simpara>
 
548
</simpara></listitem></varlistentry>
 
549
<varlistentry><term><parameter>blue</parameter>&nbsp;:</term>
 
550
<listitem><simpara>
 
551
</simpara></listitem></varlistentry>
 
552
<varlistentry><term><parameter>alpha</parameter>&nbsp;:</term>
 
553
<listitem><simpara>
 
554
</simpara></listitem></varlistentry>
 
555
</variablelist></refsect2>
 
556
<refsect2>
 
557
<title><anchor id="gimp-rgba-set-uchar"/>gimp_rgba_set_uchar ()</title>
 
558
<indexterm><primary>gimp_rgba_set_uchar</primary></indexterm><programlisting><link linkend="void">void</link>        gimp_rgba_set_uchar             (<link linkend="GimpRGB">GimpRGB</link> *rgba,
 
559
                                             <link linkend="guchar">guchar</link> red,
 
560
                                             <link linkend="guchar">guchar</link> green,
 
561
                                             <link linkend="guchar">guchar</link> blue,
 
562
                                             <link linkend="guchar">guchar</link> alpha);</programlisting>
 
563
<para>
 
564
Sets the red, green, blue and alpha components of <parameter>rgb</parameter> from 8bit
 
565
values (0 to 255).</para>
 
566
<para>
 
567
 
 
568
</para><variablelist role="params">
 
569
<varlistentry><term><parameter>rgba</parameter>&nbsp;:</term>
 
570
<listitem><simpara> a <link linkend="GimpRGB"><type>GimpRGB</type></link> struct
 
571
</simpara></listitem></varlistentry>
 
572
<varlistentry><term><parameter>red</parameter>&nbsp;:</term>
 
573
<listitem><simpara>
 
574
</simpara></listitem></varlistentry>
 
575
<varlistentry><term><parameter>green</parameter>&nbsp;:</term>
 
576
<listitem><simpara>
 
577
</simpara></listitem></varlistentry>
 
578
<varlistentry><term><parameter>blue</parameter>&nbsp;:</term>
 
579
<listitem><simpara>
 
580
</simpara></listitem></varlistentry>
 
581
<varlistentry><term><parameter>alpha</parameter>&nbsp;:</term>
 
582
<listitem><simpara>
 
583
</simpara></listitem></varlistentry>
 
584
</variablelist></refsect2>
 
585
<refsect2>
 
586
<title><anchor id="gimp-rgba-get-uchar"/>gimp_rgba_get_uchar ()</title>
 
587
<indexterm><primary>gimp_rgba_get_uchar</primary></indexterm><programlisting><link linkend="void">void</link>        gimp_rgba_get_uchar             (const <link linkend="GimpRGB">GimpRGB</link> *rgba,
 
588
                                             <link linkend="guchar">guchar</link> *red,
 
589
                                             <link linkend="guchar">guchar</link> *green,
 
590
                                             <link linkend="guchar">guchar</link> *blue,
 
591
                                             <link linkend="guchar">guchar</link> *alpha);</programlisting>
 
592
<para>
 
593
 
 
594
</para><variablelist role="params">
 
595
<varlistentry><term><parameter>rgba</parameter>&nbsp;:</term>
 
596
<listitem><simpara>
 
597
</simpara></listitem></varlistentry>
 
598
<varlistentry><term><parameter>red</parameter>&nbsp;:</term>
 
599
<listitem><simpara>
 
600
</simpara></listitem></varlistentry>
 
601
<varlistentry><term><parameter>green</parameter>&nbsp;:</term>
 
602
<listitem><simpara>
 
603
</simpara></listitem></varlistentry>
 
604
<varlistentry><term><parameter>blue</parameter>&nbsp;:</term>
 
605
<listitem><simpara>
 
606
</simpara></listitem></varlistentry>
 
607
<varlistentry><term><parameter>alpha</parameter>&nbsp;:</term>
 
608
<listitem><simpara>
 
609
 
 
610
 
 
611
</simpara></listitem></varlistentry>
 
612
</variablelist></refsect2>
 
613
<refsect2>
 
614
<title><anchor id="gimp-rgba-parse-css"/>gimp_rgba_parse_css ()</title>
 
615
<indexterm><primary>gimp_rgba_parse_css</primary></indexterm><programlisting><link linkend="gboolean">gboolean</link>    gimp_rgba_parse_css             (<link linkend="GimpRGB">GimpRGB</link> *rgba,
 
616
                                             const <link linkend="gchar">gchar</link> *css,
 
617
                                             <link linkend="gint">gint</link> len);</programlisting>
 
618
<para>
 
619
Similar to <link linkend="gimp-rgb-parse-css"><function>gimp_rgb_parse_css()</function></link> but handles RGB colors with alpha
 
620
channel in the numerical CSS notation (<code>rgba(255,0,0,255)</code>
 
621
or <code>rgba(100%,0%,0%,1000%)</code>).
 
622
</para>
 
623
<para>
 
624
It doesn't handle the hexadecimal notation or color names because
 
625
they leave the alpha channel unspecified.</para>
 
626
<para>
 
627
 
 
628
</para><variablelist role="params">
 
629
<varlistentry><term><parameter>rgba</parameter>&nbsp;:</term>
 
630
<listitem><simpara> a <link linkend="GimpRGB"><type>GimpRGB</type></link> struct used to return the parsed color
 
631
</simpara></listitem></varlistentry>
 
632
<varlistentry><term><parameter>css</parameter>&nbsp;:</term>
 
633
<listitem><simpara> a string describing a color in CSS notation
 
634
</simpara></listitem></varlistentry>
 
635
<varlistentry><term><parameter>len</parameter>&nbsp;:</term>
 
636
<listitem><simpara> the length of <parameter>hex</parameter>, in bytes. or -1 if <parameter>hex</parameter> is nul-terminated
 
637
</simpara></listitem></varlistentry>
 
638
<varlistentry><term><emphasis>Returns</emphasis> :</term><listitem><simpara> <literal>TRUE</literal> if <parameter>css</parameter> was parsed successfully and <parameter>rgb</parameter> has been
 
639
              set, <literal>FALSE</literal> otherwise
 
640
 
 
641
</simpara></listitem></varlistentry>
 
642
</variablelist><para>Since  GIMP 2.2
 
643
</para></refsect2>
 
644
<refsect2>
 
645
<title><anchor id="gimp-rgba-add"/>gimp_rgba_add ()</title>
 
646
<indexterm><primary>gimp_rgba_add</primary></indexterm><programlisting><link linkend="void">void</link>        gimp_rgba_add                   (<link linkend="GimpRGB">GimpRGB</link> *rgba1,
 
647
                                             const <link linkend="GimpRGB">GimpRGB</link> *rgba2);</programlisting>
 
648
<para>
 
649
 
 
650
</para><variablelist role="params">
 
651
<varlistentry><term><parameter>rgba1</parameter>&nbsp;:</term>
 
652
<listitem><simpara>
 
653
</simpara></listitem></varlistentry>
 
654
<varlistentry><term><parameter>rgba2</parameter>&nbsp;:</term>
 
655
<listitem><simpara>
 
656
 
 
657
 
 
658
</simpara></listitem></varlistentry>
 
659
</variablelist></refsect2>
 
660
<refsect2>
 
661
<title><anchor id="gimp-rgba-subtract"/>gimp_rgba_subtract ()</title>
 
662
<indexterm><primary>gimp_rgba_subtract</primary></indexterm><programlisting><link linkend="void">void</link>        gimp_rgba_subtract              (<link linkend="GimpRGB">GimpRGB</link> *rgba1,
 
663
                                             const <link linkend="GimpRGB">GimpRGB</link> *rgba2);</programlisting>
 
664
<para>
 
665
 
 
666
</para><variablelist role="params">
 
667
<varlistentry><term><parameter>rgba1</parameter>&nbsp;:</term>
 
668
<listitem><simpara>
 
669
</simpara></listitem></varlistentry>
 
670
<varlistentry><term><parameter>rgba2</parameter>&nbsp;:</term>
 
671
<listitem><simpara>
 
672
 
 
673
 
 
674
</simpara></listitem></varlistentry>
 
675
</variablelist></refsect2>
 
676
<refsect2>
 
677
<title><anchor id="gimp-rgba-multiply"/>gimp_rgba_multiply ()</title>
 
678
<indexterm><primary>gimp_rgba_multiply</primary></indexterm><programlisting><link linkend="void">void</link>        gimp_rgba_multiply              (<link linkend="GimpRGB">GimpRGB</link> *rgba,
 
679
                                             <link linkend="gdouble">gdouble</link> factor);</programlisting>
 
680
<para>
 
681
 
 
682
</para><variablelist role="params">
 
683
<varlistentry><term><parameter>rgba</parameter>&nbsp;:</term>
 
684
<listitem><simpara>
 
685
</simpara></listitem></varlistentry>
 
686
<varlistentry><term><parameter>factor</parameter>&nbsp;:</term>
 
687
<listitem><simpara>
 
688
 
 
689
 
 
690
</simpara></listitem></varlistentry>
 
691
</variablelist></refsect2>
 
692
<refsect2>
 
693
<title><anchor id="gimp-rgba-distance"/>gimp_rgba_distance ()</title>
 
694
<indexterm><primary>gimp_rgba_distance</primary></indexterm><programlisting><link linkend="gdouble">gdouble</link>     gimp_rgba_distance              (const <link linkend="GimpRGB">GimpRGB</link> *rgba1,
 
695
                                             const <link linkend="GimpRGB">GimpRGB</link> *rgba2);</programlisting>
 
696
<para>
 
697
 
 
698
</para><variablelist role="params">
 
699
<varlistentry><term><parameter>rgba1</parameter>&nbsp;:</term>
 
700
<listitem><simpara>
 
701
</simpara></listitem></varlistentry>
 
702
<varlistentry><term><parameter>rgba2</parameter>&nbsp;:</term>
 
703
<listitem><simpara>
 
704
</simpara></listitem></varlistentry>
 
705
<varlistentry><term><emphasis>Returns</emphasis> :</term><listitem><simpara>
 
706
 
 
707
 
 
708
</simpara></listitem></varlistentry>
 
709
</variablelist></refsect2>
 
710
<refsect2>
 
711
<title><anchor id="GIMP-RGB-INTENSITY-CAPS"/>GIMP_RGB_INTENSITY()</title>
 
712
<indexterm><primary>GIMP_RGB_INTENSITY</primary></indexterm><programlisting>#define     GIMP_RGB_INTENSITY(r,g,b)</programlisting>
 
713
<para>
 
714
This macro calculates the intensity of an RGB value based on
 
715
coefficients taken from the NTSC analog television standard.
 
716
</para><variablelist role="params">
 
717
<varlistentry><term><parameter>r</parameter>&nbsp;:</term>
 
718
<listitem><simpara>red
 
719
</simpara></listitem></varlistentry>
 
720
<varlistentry><term><parameter>g</parameter>&nbsp;:</term>
 
721
<listitem><simpara>green
 
722
</simpara></listitem></varlistentry>
 
723
<varlistentry><term><parameter>b</parameter>&nbsp;:</term>
 
724
<listitem><simpara>blue
 
725
 
 
726
 
 
727
</simpara></listitem></varlistentry>
 
728
</variablelist></refsect2>
 
729
<refsect2>
 
730
<title><anchor id="GIMP-RGB-INTENSITY-RED-CAPS"/>GIMP_RGB_INTENSITY_RED</title>
 
731
<indexterm><primary>GIMP_RGB_INTENSITY_RED</primary></indexterm><programlisting>#define GIMP_RGB_INTENSITY_RED    0.30
 
732
</programlisting>
 
733
<para>
 
734
 
 
735
</para></refsect2>
 
736
<refsect2>
 
737
<title><anchor id="GIMP-RGB-INTENSITY-GREEN-CAPS"/>GIMP_RGB_INTENSITY_GREEN</title>
 
738
<indexterm><primary>GIMP_RGB_INTENSITY_GREEN</primary></indexterm><programlisting>#define GIMP_RGB_INTENSITY_GREEN  0.59
 
739
</programlisting>
 
740
<para>
 
741
 
 
742
</para></refsect2>
 
743
<refsect2>
 
744
<title><anchor id="GIMP-RGB-INTENSITY-BLUE-CAPS"/>GIMP_RGB_INTENSITY_BLUE</title>
 
745
<indexterm><primary>GIMP_RGB_INTENSITY_BLUE</primary></indexterm><programlisting>#define GIMP_RGB_INTENSITY_BLUE   0.11
 
746
</programlisting>
 
747
<para>
 
748
 
 
749
</para></refsect2>
 
750
<refsect2>
 
751
<title><anchor id="GIMP-TYPE-RGB-CAPS"/>GIMP_TYPE_RGB</title>
 
752
<indexterm><primary>GIMP_TYPE_RGB</primary></indexterm><programlisting>#define GIMP_TYPE_RGB               (gimp_rgb_get_type ())
 
753
</programlisting>
 
754
<para>
 
755
<link linkend="GIMP-TYPE-RGB-CAPS"><type>GIMP_TYPE_RGB</type></link> is a <link linkend="GType"><type>GType</type></link> derived from <link linkend="G-TYPE-BOXED-CAPS"><type>G_TYPE_BOXED</type></link>.
 
756
</para></refsect2>
 
757
<refsect2>
 
758
<title><anchor id="GIMP-VALUE-HOLDS-RGB-CAPS"/>GIMP_VALUE_HOLDS_RGB()</title>
 
759
<indexterm><primary>GIMP_VALUE_HOLDS_RGB</primary></indexterm><programlisting>#define GIMP_VALUE_HOLDS_RGB(value) (G_TYPE_CHECK_VALUE_TYPE ((value), GIMP_TYPE_RGB))
 
760
</programlisting>
 
761
<para>
 
762
 
 
763
</para><variablelist role="params">
 
764
<varlistentry><term><parameter>value</parameter>&nbsp;:</term>
 
765
<listitem><simpara>
 
766
 
 
767
 
 
768
</simpara></listitem></varlistentry>
 
769
</variablelist></refsect2>
 
770
 
 
771
</refsect1>
 
772
 
 
773
 
 
774
 
 
775
 
 
776
</refentry>