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GDK Reference Manual | ![]() |
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Top | Description |
#include <gdk/gdk.h> GdkColor; GdkColor * gdk_color_copy (const GdkColor *color
); void gdk_color_free (GdkColor *color
); gboolean gdk_color_parse (const gchar *spec
,GdkColor *color
); gboolean gdk_color_equal (const GdkColor *colora
,const GdkColor *colorb
); guint gdk_color_hash (const GdkColor *colora
); gchar * gdk_color_to_string (const GdkColor *color
);
typedef struct { guint32 pixel; guint16 red; guint16 green; guint16 blue; } GdkColor;
The GdkColor structure is used to describe an allocated or unallocated color.
guint32 |
For allocated colors, the value used to draw this color on the screen. |
guint16 |
The red component of the color. This is a value between 0 and 65535, with 65535 indicating full intensitiy. |
guint16 |
The green component of the color. |
guint16 |
The blue component of the color. |
GdkColor * gdk_color_copy (const GdkColor *color
);
Makes a copy of a color structure. The result
must be freed using gdk_color_free()
.
|
a GdkColor. |
Returns : |
a copy of color .
|
void gdk_color_free (GdkColor *color
);
Frees a color structure created with
gdk_color_copy()
.
|
a GdkColor. |
gboolean gdk_color_parse (const gchar *spec
,GdkColor *color
);
Parses a textual specification of a color and fill in the
red
, green
,
and blue
fields of a GdkColor
structure. The string can either one of a large set of standard
names. (Taken from the X11 rgb.txt
file), or
it can be a hex 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')
gboolean gdk_color_equal (const GdkColor *colora
,const GdkColor *colorb
);
Compares two colors.
guint gdk_color_hash (const GdkColor *colora
);
A hash function suitable for using for a hash table that stores GdkColor's.
|
a GdkColor. |
Returns : |
The hash function applied to colora
|
gchar * gdk_color_to_string (const GdkColor *color
);
Returns a textual specification of color
in the hexadecimal form
#rrrrggggbbbb
, where r
,
g
and b
are hex digits
representing the red, green and blue components respectively.
|
a GdkColor |
Returns : |
a newly-allocated text string |
Since 2.12