Gdk-3.0 ▶ Gdk ▶ RGBA

constructor

• new RGBA(
      properties?: Partial<
          { alpha: number; blue: number; green: number; red: number },
      >,
  ): Gdk.RGBA

  Parameters

  • Optionalproperties: Partial<{ alpha: number; blue: number; green: number; red: number }>

  Returns Gdk.RGBA

alpha

blue

green

red

Static$gtype

copy

• copy(): Gdk.RGBA

  Makes a copy of a Gdk.RGBA.

  The result must be freed through gdk_rgba_free().

  Returns Gdk.RGBA

  A newly allocated Gdk.RGBA, with the same contents as rgba

equal

• equal(p2: Gdk.RGBA): boolean

  Compares two RGBA colors.

  Parameters

  • p2: Gdk.RGBA

    another Gdk.RGBA pointer

  Returns boolean

  true if the two colors compare equal

free

• free(): void

  Frees a Gdk.RGBA created with gdk_rgba_copy()

  Returns void

hash

• hash(): number

  A hash function suitable for using for a hash table that stores GdkRGBAs.

  Returns number

  The hash value for p

parse

• parse(spec: string): boolean

  Parses a textual representation of a color, filling in the red, green, blue and alpha fields of the rgba Gdk.RGBA.

  The string can be either one of:

  • A standard name (Taken from the X11 rgb.txt file).
  • A hexadecimal value in the form “#rgb”, “#rrggbb”, “#rrrgggbbb” or ”#rrrrggggbbbb”
  • A RGB color in the form “rgb(r,g,b)” (In this case the color will have full opacity)
  • A RGBA color in the form “rgba(r,g,b,a)”

  Where “r”, “g”, “b” and “a” are respectively the red, green, blue and alpha color values. In the last two cases, “r”, “g”, and “b” are either integers in the range 0 to 255 or percentage values in the range 0% to 100%, and a is a floating point value in the range 0 to 1.

  Parameters

  • spec: string

    the string specifying the color

  Returns boolean

  true if the parsing succeeded

to_string

• to_string(): string

  Returns a textual specification of rgba in the form rgb(r,g,b) or rgba(r g,b,a), where “r”, “g”, “b” and “a” represent the red, green, blue and alpha values respectively. “r”, “g”, and “b” are represented as integers in the range 0 to 255, and “a” is represented as a floating point value in the range 0 to 1.

  These string forms are string forms that are supported by the CSS3 colors module, and can be parsed by gdk_rgba_parse().

  Note that this string representation may lose some precision, since “r”, “g” and “b” are represented as 8-bit integers. If this is a concern, you should use a different representation.

  Returns string

  A newly allocated text string