I think it's most likely not keeping the input stream in the new image at all.
It's probably also worth testing SelectActiveFrame, GetPropertyItem, and GetImageRawFormat with clones of images. Maybe they don't work.
I think it's most likely not keeping the input stream in the new image at all.
It's probably also worth testing SelectActiveFrame, GetPropertyItem, and GetImageRawFormat with clones of images. Maybe they don't work.