Pango.Color

Description

The Pango.Color.Pango_Color structure is used to represent a color in an uncalibrated RGB color-space.

From_Object_Free

function From_Object_Free
  (B : not null access Pango_Color) return Pango_Color

Return the underlying object and free the pointer. This is meant to be used internally by GtkAda, and should not in general be called by user code.

Parameters

B

Return Value

Get_Type

function Get_Type return Glib.GType

Return Value

Pango_Color

type Pango_Color is record
   Red : Guint16;
   Green : Guint16;
   Blue : Guint16;
end record;

The Pango.Color.Pango_Color structure is used to represent a color in an uncalibrated RGB color-space.

Record components

Red

Green

Blue

Parse

function Parse
   (Self : access Pango_Color;
    Spec : UTF8_String) return Boolean

Fill in the fields of a color from a string specification. The string can either one of a large set of standard names. (Taken from the CSS <ulink url="http://dev.w3.org/csswg/css-color/named-colors">specification</ulink>), or it can be a hexadecimal value in the form '&num;rgb' '&num;rrggbb' '&num;rrrgggbbb' or '&num;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 '&num;fff' '&num;ffffff' '&num;fffffffff' and '&num;ffffffffffff')

Parameters

Self

Spec

a string specifying the new color

Return Value

True if parsing of the specifier succeeded, otherwise false.

Parse_With_Alpha

function Parse_With_Alpha
   (Self  : access Pango_Color;
    Alpha : access Guint16 := null;
    Spec  : UTF8_String) return Boolean

Fill in the fields of a color from a string specification. The string can either one of a large set of standard names. (Taken from the CSS <ulink url="http://dev.w3.org/csswg/css-color/named-colors">specification</ulink>), or it can be a hexadecimal value in the form '&num;rgb' '&num;rrggbb' '&num;rrrgggbbb' or '&num;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 '&num;fff' '&num;ffffff' '&num;fffffffff' and '&num;ffffffffffff') Additionally, parse strings of the form '&num;rgba', '&num;rrggbbaa', '&num;rrrrggggbbbbaaaa', if Alpha is not null, and set Alpha to the value specified by the hex digits for 'a'. If no alpha component is found in Spec, Alpha is set to 0xffff (for a solid color). Since: gtk+ 1.46

Parameters

Self

Alpha

return location for alpha, or null

Spec

a string specifying the new color

Return Value

True if parsing of the specifier succeeded, otherwise false.

To_String

function To_String (Self : Pango_Color) return UTF8_String

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. Since: gtk+ 1.16

Parameters

Self

Return Value

a newly-allocated text string that must be freed with g_free.