It have been solved with this:
GimpHSL hsl;
gimp_rgb_to_hsl (&rbvals.color, &hsl);
if (hsl.h == -1) // GIMP_HSL_UNDEFINED
hsl.h = 0;
gimp_colorize(drawable->drawable_id, hsl.h * 360, hsl.s * 100, hsl.l
* 100);
sorry for disturbs.
On Wed, 2012-06-06 at 12:57 +0800, hejian wrote:
> I am trying to write a plugin, this is the code snippet:
>
> GimpHSL hsl;
> gimp_rgb_to_hsl (&rbvals.color, &hsl);
> gimp_colorize(drawable->drawable_id, hsl.h, hsl.s, hsl.l);
>
> It will got this error:
>
> Calling error for procedure 'gimp-colorize':
> Procedure 'gimp-colorize' has been called with value '-1.000000' for
> argument 'hue' (#2, type gdouble). This value is out of range.
>
> any suggestion is appreciated.
>
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