On Sat, 20 Jul 2002 Vikas Madhavan Alathur wrote :

...

I have written a program explaining the concept of Fourier

series

...

graphically using the Mesa library. The program runs in full

screen

...

mode. Now I want to take a snap shot of one of its screens and

get a

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PNG image of the same. How do I get it ?

If you have KDE installed, use ksnapshot.

I am not aware of any tools that do this except in X. However, you can always throw your own code in-that is if you have the time and need to expirement.

You will need to first capture the video memory as a bitmap and use the libraries for converting it to PNG. I assume libpng has such facilities.

Thanks,

-ah