Method
PangoColorparse_with_alpha
Declaration [src]
gboolean
pango_color_parse_with_alpha (
PangoColor* color,
guint16* alpha,
const char* spec
)
Description [src]
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 Color specification,
or it can be a hexadecimal value in the form #rgb
,
#rrggbb
, #rrrgggbbb
or #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
#fff
, #ffffff
, #fffffffff
and #ffffffffffff
.)
Additionally, parse strings of the form #rgba
, #rrggbbaa
,
#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).
Available since: | 1.46 |
Parameters
alpha |
guint16* |
Return location for alpha. |
|
The argument will be set by the function. | |
The argument can be NULL . | |
The instance takes ownership of the data, and is responsible for freeing it. | |
spec |
const char* |
A string specifying the new color. |
|
The data is owned by the caller of the function. | |
The string is a NUL terminated UTF-8 string. |