First of all: I have a PPC 8500, system 7.5.5 and MCL 4.0.
I need to write graphical presentations to disk as graphic files
(format pict, gif or jpeg). I am capable of doing it as long as the
presentations are _drawn to the screen first_, since I then
have a picthandle to that presentation (window etc.). But what I
really want to do is to save those presentations without drawing
to the screen first. To my knowledge, the system provides the
picthandles only from presentations actually seen on the screen.
Does anyone know any way to do it?
One approach is to have a "virtual screen" or "virtual desktop"
simulating the properties of a real monitor/screen. If I had such
I could be able to draw everything to the virtual screen and
the problem could be solved. Does anyone have any experience
of such lisp structure? Also a system extension providing a
virtual screen or desktop and a way to access those by
programming, could solve it.
I'm not a very sophisticated lisp programmer, so if anyone
understands what I'm talkong about, please try to keep answers
fairly simple :-) Code examples would be greatly appreciated.
Thank you.
--
/Mara
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