Re: Specifying the file format when writing to a Blob

> You have not overseen anything.  This is a design defect in the API. I
> believe that an effective workaround would be to use the
> Magick::Image::magick() (i.e. image.magick()) method to set the format
> in the first frame of the vector/list.  This should work because the
> writer uses the current image set format from the first image in the
> list when writing.
>
> I am adding this to the top of my TODO list and perhaps it will be fixed
> in this next release.

That would be great. Once it is added in GraphicsMagick, I will contact 
the author of pgmagick (python) to add it to the python interface as well.

Btw.: pgmagick uses the STL interface, so it would be nice if you could 
add something like

void writeImages( InputIterator first_,
                   InputIterator last_,
                   Blob *blob_,
                   const std::string &magick,
                   bool adjoin_ = true) {

to Magick++/lib/Magick++/STL.h!

Kind regards
Marten

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