Struct
GimpRGB
Description [src]
struct GimpRGB {
gdouble r;
gdouble g;
gdouble b;
gdouble a;
}
Definitions and Functions relating to RGB colors.
Structure members
rThe red component.
gThe green component.
bThe blue component.
aThe alpha component.
Functions
gimp_rgb_list_names
Returns the list of
since: 2.2
Instance methods
gimp_rgba_get_pixel
Writes the red, green, blue and alpha components of rgba to the
color stored in pixel. The pixel format of pixel is determined by
format.
since: 2.10
gimp_rgba_parse_css
Similar to gimp_rgb_parse_css() but handles RGB colors with alpha
channel in the numerical CSS notation (rgba(255,0,0,255)
or rgba(100%,0%,0%,1000%)).
since: 2.2
gimp_rgba_set
Sets the red, green, blue and alpha components of rgb. The values
should be between 0.0 and 1.0 but there is no check to enforce this
and the values are set exactly as they are passed in.
gimp_rgba_set_pixel
Sets the red, green, blue and alpha components of rgba from the
color stored in pixel. The pixel format of pixel is determined
by format.
since: 2.10
gimp_rgba_set_uchar
Sets the red, green, blue and alpha components of rgba from 8bit
values (0 to 255).
gimp_rgb_get_pixel
Writes the red, green, blue and alpha components of rgb to the
color stored in pixel. The pixel format of pixel is determined by
format.
since: 2.10
gimp_rgb_get_uchar
Writes the red, green, blue and alpha components of rgb to the
color components red, green and blue.
gimp_rgb_parse_css
Attempts to parse a string describing an RGB color in CSS
notation. This can be either a numerical representation
(rgb(255,0,0) or rgb(100%,0%,0%))
or a hexadecimal notation as parsed by gimp_rgb_parse_hex()
(##ff0000) or a color name as parsed by
gimp_rgb_parse_name() (red).
since: 2.2
gimp_rgb_parse_hex
Attempts to parse a string describing an RGB color in hexadecimal notation (optionally prefixed with a ‘#’).
since: 2.2
gimp_rgb_parse_name
Attempts to parse a color name. This function accepts
since: 2.2
gimp_rgb_set
Sets the red, green and blue components of rgb and leaves the
alpha component unchanged. The color values should be between 0.0
and 1.0 but there is no check to enforce this and the values are
set exactly as they are passed in.
gimp_rgb_set_pixel
Sets the red, green and blue components of rgb from the color
stored in pixel. The pixel format of pixel is determined by
format.
since: 2.10
gimp_rgb_set_uchar
Sets the red, green and blue components of rgb from 8bit values
(0 to 255) and leaves the alpha component unchanged.
gimp_rgb_to_cmyk
Does a naive conversion from RGB to CMYK colorspace. A simple
formula that doesn’t take any color-profiles into account is used.
The amount of black pullout how can be controlled via the pullout
parameter. A pullout value of 0 makes this a conversion to CMY.
A value of 1 causes the maximum amount of black to be pulled out.