1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
|
/* GDK - The GIMP Drawing Kit
* Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library. If not, see <http://www.gnu.org/licenses/>.
*/
/*
* Modified by the GTK+ Team and others 1997-2000. See the AUTHORS
* file for a list of people on the GTK+ Team. See the ChangeLog
* files for a list of changes. These files are distributed with
* GTK+ at ftp://ftp.gtk.org/pub/gtk/.
*/
#ifndef __GDK_VISUAL_H__
#define __GDK_VISUAL_H__
#if !defined (__GDK_H_INSIDE__) && !defined (GDK_COMPILATION)
#error "Only <gdk/gdk.h> can be included directly."
#endif
#include <gdk/gdktypes.h>
#include <gdk/gdkversionmacros.h>
G_BEGIN_DECLS
#define GDK_TYPE_VISUAL (gdk_visual_get_type ())
#define GDK_VISUAL(object) (G_TYPE_CHECK_INSTANCE_CAST ((object), GDK_TYPE_VISUAL, GdkVisual))
#define GDK_IS_VISUAL(object) (G_TYPE_CHECK_INSTANCE_TYPE ((object), GDK_TYPE_VISUAL))
/**
* GdkVisualType:
* @GDK_VISUAL_STATIC_GRAY: Each pixel value indexes a grayscale value
* directly.
* @GDK_VISUAL_GRAYSCALE: Each pixel is an index into a color map that
* maps pixel values into grayscale values. The color map can be
* changed by an application.
* @GDK_VISUAL_STATIC_COLOR: Each pixel value is an index into a predefined,
* unmodifiable color map that maps pixel values into RGB values.
* @GDK_VISUAL_PSEUDO_COLOR: Each pixel is an index into a color map that
* maps pixel values into rgb values. The color map can be changed by
* an application.
* @GDK_VISUAL_TRUE_COLOR: Each pixel value directly contains red, green,
* and blue components. Use gdk_visual_get_red_pixel_details(), etc,
* to obtain information about how the components are assembled into
* a pixel value.
* @GDK_VISUAL_DIRECT_COLOR: Each pixel value contains red, green, and blue
* components as for %GDK_VISUAL_TRUE_COLOR, but the components are
* mapped via a color table into the final output table instead of
* being converted directly.
*
* A set of values that describe the manner in which the pixel values
* for a visual are converted into RGB values for display.
*/
typedef enum
{
GDK_VISUAL_STATIC_GRAY,
GDK_VISUAL_GRAYSCALE,
GDK_VISUAL_STATIC_COLOR,
GDK_VISUAL_PSEUDO_COLOR,
GDK_VISUAL_TRUE_COLOR,
GDK_VISUAL_DIRECT_COLOR
} GdkVisualType;
/**
* GdkVisual:
*
* A #GdkVisual contains information about
* a particular visual.
*/
GDK_AVAILABLE_IN_ALL
GType gdk_visual_get_type (void) G_GNUC_CONST;
GDK_AVAILABLE_IN_ALL
gint gdk_visual_get_best_depth (void);
GDK_AVAILABLE_IN_ALL
GdkVisualType gdk_visual_get_best_type (void);
GDK_AVAILABLE_IN_ALL
GdkVisual* gdk_visual_get_system (void);
GDK_AVAILABLE_IN_ALL
GdkVisual* gdk_visual_get_best (void);
GDK_AVAILABLE_IN_ALL
GdkVisual* gdk_visual_get_best_with_depth (gint depth);
GDK_AVAILABLE_IN_ALL
GdkVisual* gdk_visual_get_best_with_type (GdkVisualType visual_type);
GDK_AVAILABLE_IN_ALL
GdkVisual* gdk_visual_get_best_with_both (gint depth,
GdkVisualType visual_type);
GDK_AVAILABLE_IN_ALL
void gdk_query_depths (gint **depths,
gint *count);
GDK_AVAILABLE_IN_ALL
void gdk_query_visual_types (GdkVisualType **visual_types,
gint *count);
GDK_AVAILABLE_IN_ALL
GList* gdk_list_visuals (void);
GDK_AVAILABLE_IN_ALL
GdkScreen *gdk_visual_get_screen (GdkVisual *visual);
GDK_AVAILABLE_IN_ALL
GdkVisualType gdk_visual_get_visual_type (GdkVisual *visual);
GDK_AVAILABLE_IN_ALL
gint gdk_visual_get_depth (GdkVisual *visual);
GDK_AVAILABLE_IN_ALL
GdkByteOrder gdk_visual_get_byte_order (GdkVisual *visual);
GDK_AVAILABLE_IN_ALL
gint gdk_visual_get_colormap_size (GdkVisual *visual);
GDK_AVAILABLE_IN_ALL
gint gdk_visual_get_bits_per_rgb (GdkVisual *visual);
GDK_AVAILABLE_IN_ALL
void gdk_visual_get_red_pixel_details (GdkVisual *visual,
guint32 *mask,
gint *shift,
gint *precision);
GDK_AVAILABLE_IN_ALL
void gdk_visual_get_green_pixel_details (GdkVisual *visual,
guint32 *mask,
gint *shift,
gint *precision);
GDK_AVAILABLE_IN_ALL
void gdk_visual_get_blue_pixel_details (GdkVisual *visual,
guint32 *mask,
gint *shift,
gint *precision);
G_END_DECLS
#endif /* __GDK_VISUAL_H__ */
|
