Hi,
I am new to GIMP. I know Lisp, so I want to learn to write Script-fu scripts.

The first thing I want to do is to be able to get the image properties in the script. Specifically, I want to get the "Comments" part of the image properties. How to do this? I searched in the procedure browser, but could not find a direct way.

Thanks for your help.

Regards,
Rangarajan

It's in a "parasite". In Python:

Something similar(*) is likely available in script-fu.

(*) but, of course, more convoluted

it's definitely not straight forward in scheme,

which returns a list of a list that looks like
(("gimp-comment" 1 "This is a test comment"))

so to get at the comment you have to do something like

Thank you! Both work as expected.

Regards,
Rangarajan

Nothing is

.py is more fun to work with that's for sure.
in python, pdb.gimp_image_get_parasite(image,"gimp-comment")
returns the string we want. I tried both scheme and python to see what's going on.

Tin, what's wrong in my sequence at python console?

>>> nr,ids = pdb.gimp_image_list()
>>> myimage = ids[0]
>>> comment = pdb.gimp_image_get_parasite (myimage, "gimp-comment")
Traceback (most recent call last):
File "<input>", line 1, in <module>
TypeError: wrong parameter type
>>>

when you use pdb.gimp_image_list it returns image ids not image objects

try this

thanks Tin, but...
>>> images = gimp.image_list()
>>> myimage = images[0]
>>> comment = pdb.gimp_image_get_parasite (myimage, "gimp-comment")
Traceback (most recent call last):
File "<input>", line 1, in <module>
RuntimeError: execution error
>>>

that's exactly what i have i don't know what's different
here check out this example

I named it funny because i just used another script's code as wrapper.

so, it's again something happening in my PC now, maybe tomorrow it will work...

look, Tin

well, a good sleep until tomorrow, then I'll retry

that's freakn weird man, it runs fine on mine

Looks like you have introduced a syntax error after it registered... did you edit it?
Can you run it outside of Gimp (it should say "ImportError: No module named gimpfu")?

No syntax error - the error is what you get when the image doesn't have a comment.

Kevin

I would have never find this out as I created all my images in GIMP and i think it defaults to have "Created in GIMP" as comment.

wow, that's it
created an image and...voilà, script worked.
IMO this is a bad behaviour by Gimp, it should be amended to answer with something like "no such a parasite" or "void" or "empty", and not conclude with a runtime error or whatever error msg