char* gdk_rgba_to_string ( const GdkRGBA* rgba )
Returns a textual specification of
rgba in the form
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
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.