This is a little bit of an off-topic solution but I was faced with a similar
task where I had to do screen dumps of clients in our machine farm as
problems arose. I didn't find a hands-off solution with Perl (not to say it
doesn't exist; it just wasn't right in my face). I was, however, able to
automate the process VERY easily with python using PIL (Python Image
Library) and the ImageGrab module.
If you use this (or a perl equivalent) and you want to go straight from HTML
to a JPEG, you should be able to launch a process against the HTML file
which should fire off you browser (assuming file associations are set
correctly on the machine) and then do the screen dump.
Again, you'll probably get more elegant solutions but this is quick and
dirty (especially if you already have python on your machine and don't mind
making an external system call). The python script is literally as simple
as:
import Image
import ImageGrab
import traceback
# simple python script that does a screen dump
try:
jpegfile = "screenshot.jpg"
ImageGrab.grab().save(jpegfile)
print "Done!"
except Exception,e:
traceback.print_exc()
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