how to know if you are on a Q8 or Q16 version of ImageMagick

[xt5]

hi,

I want to know an easy way to know if the version that call a custom filter (dynamic module) is a Q8 or Q16 version of ImageMagick, that way I could make a module compatible with both versions (I'm using MagickCore).

If it its not posible to know it in runtime, is there a way (a macro or so) to know it easily on compile time?

[fmw42]

The only way I know is to find its directory. For example on my system, I built a custom filter using MagickFilterKit-1.0.0

I can find where it gets stored as:

/usr/local/lib/ImageMagick-6.6.3/modules-Q16/filters


So the directory says which Q version it is.

That is the best I can offer until Magick or someone else who knows more can answer

[el_supremo]

http://www.imagemagick.org/api/version. ... antumDepth

Pete

[fmw42]

I also forgot to mention the recent addition of

convert -list module

at least for command line mode. It lists all the coders and filters.

From the changelog

2010-06-28 6.6.2-10 Cristy <quetzlzacatenango@image...>
The -list module option lists image coders and image filters.


I presume if you are on Q8 and there are only Q16 filters, that you will not see any filters listed. But I have not tested that.

[xt5]

http://www.imagemagick.org/api/version. ... antumDepth

Pete

thanks Pete, this what I was after for.

also thanks fmw42 for the workarounds!