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add set_metadata, get_metadata script functions

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GenevensiS
2026-01-20 10:30:21 +01:00
parent ab4d79a686
commit c42068f918
11 changed files with 59 additions and 9 deletions
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doc/function/get_metadata.txt
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Function: get_metadata
--Usage--
> get_metadata(input: image)
Returns the metadata of an image, or an empty string if there isn't any.
Metadata is only stored when an image is saved as a PNG.
It is saved in a uncompressed iTXt chunk with the key "Description".
If the image is saved as a JPG, the metadata is lost.
--Parameters--
! Parameter Type Description
| @input@ [[type:image]] The image whose metadata we'll get.
| @set@ [[type:set]] The active set. This can be omitted since 'set' is a predefined variable.