[Gdal-dev] Copying over ProjectionRef as Subset

[Matt Hanson]

Hi,   I've read through the Warp API tutorial and am having trouble on how to it apply it to my problem.
 
I'm taking a subset of an image, and writing it to a VRT file, before it gets processed by some future algorithm.    I'm copying the rest of the metadata, but need to now change the ProjectionRef string to match the new coordinates.   
 
Is this something that is going to be driver dependent?