I have updated my (png) image opcodes.

http://www.cesaremarilungo.com/download/csound/imageOpcodes20071218.tar.gz

I have added the opcode imagefree to free the memory used by a 
previously loaded/created image. I am still studying the csound plugin 
development api and I'm sure there are more elegant ways to solve this 
problem. :-[

At least it is more usable than before. :-)

- c.

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