Writing optimized screeshot utility.

FROM : Teemu Keinonen
DATE : Tue Nov 20 13:02:22 2007

Hi all,

I want to write optimized screenshot utility to make videos from screeen and
therefore i want to know what parts of the screen have changed since last
snapshot. I can think of two alternatives:

1) Is it possible to get dirty region information from window manager via a
callback or such?
2) Is it possible to detect 'update' events sent to/from windows?

I would appreciate any pointers to right direction!

Thanks,

Teemu Keinonen