►The Racket Graphical Interface Toolkit
▼5 Snip and Style Classes
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get
get-b
get-g
get-r
set
set-b
set-g
set-r
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mult-color<%> : interface?
A mult-color<%> object is used to scale the RGB values of a color% object. A mult-color<%> object exist only within a style-delta% object.

See also get-foreground-mult and get-background-mult.

(send a-mult-color get r g b) → void?
  r : (box/c real?)
  g : (box/c real?)
  b : (box/c real?)
Gets all of the scaling values.

The r box is filled with the scaling value for the red component of the color. The g box is filled with the scaling value for the green component of the color. The b box is filled with the scaling value for the blue component of the color.

(send a-mult-color get-b) → real?
Gets the multiplicative scaling value for the blue component of the color.

(send a-mult-color get-g) → real?
Gets the multiplicative scaling value for the green component of the color.

(send a-mult-color get-r) → real?
Gets the multiplicative scaling value for the red component of the color.

(send a-mult-color set r g b) → void?
  r : real?
  g : real?
  b : real?
Sets all of the scaling values.

(send a-mult-color set-b v) → void?
  v : real?
Sets the multiplicative scaling value for the blue component of the color.

(send a-mult-color set-g v) → void?
  v : real?
Sets the multiplicative scaling value for the green component of the color.

(send a-mult-color set-r v) → void?
  v : real?
Sets the additive value for the red component of the color.

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