[cairo] trim margins off image

[Pablo Romero]

I need to trim margins off an image surface & resize the entire image, similar to imageMagick's trim & resize functions.
I need to know if this is at all possible using cairo.
if not, I also would like to know if it would somehow be possible to use imagemagick/magickwand to manipulate/modify a cairo surface IN MEMORY, without having to write the surface to a temporary (png) file, edit it with magickwand, and then re-read it into cairo...
 
Has anyone ever had any success integrating code from both cairo and imagemagick???
 
Please help.
 
Thanks,
P.Romero
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