[plt-scheme] How to get individual pixel in a bitmap image

From: jf grunt (jfg.info at gmail.com)
Date: Thu Nov 30 04:28:27 EST 2006

Hi all,
I wonder how to access ti pixel in a bitmap image. I took a look at the
official documentation but when i emplement a bitmap% object and use the
"get-argb-pixels" it says me that the method is not known in this specific
object. How can i do???
Moreover i would like to print this image later.

Thanks a lot
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