From: Ralf <lausianne@...>
Date: 2003-01-31T06:03:27+09:00
Subject: How to save Tk canvas as picture/create image from canvas?

Hi,

I'd like to save a canvas in some picture format (png, jpg, ...). In the 
archives I only found a solution for tcl:

image ph.
  set retVal [catch {image create photo -format window -data $canvId} ph]
  return $ph
}

.... this creates an image that can be saved in different formats.
The ruby solution probably looks very similar.
Could you give me a hand with this, please?

Thanks, Ralf.