[comp.misc] Backing store

msp33327@uxa.cso.uiuc.edu (Michael S. Pereckas) (03/07/91)

Further, the backing store idea is ``obvious.''  When I was a 13 year
old BASIC programmer I thought of it, and I'd be surprised if fewer
than half of the world's 13 year old BASIC programmers thought of it.


--


Michael Pereckas               * InterNet: m-pereckas@uiuc.edu *
just another student...          (CI$: 72311,3246)
Jargon Dept.: Decoupled Architecture---sounds like the aftermath of a tornado

sigma@jec302.its.rpi.edu (Kevin J Martin) (03/07/91)

msp33327@uxa.cso.uiuc.edu (Michael S. Pereckas) writes:
>Further, the backing store idea is ``obvious.''  When I was a 13 year
>old BASIC programmer I thought of it, and I'd be surprised if fewer
>than half of the world's 13 year old BASIC programmers thought of it.

Ha.  When I was twelve I wrote a text windowing package in Turbo Pascal
2.0; it was kind of handy, actually.  It did the backing store, both in the
sense that it would save what was underneath a window if you requested it,
and it would change the saved area according to what you wrote into a
window.  Later on I added an assembly-language routine which would draw
shadows onto windows beneath a window in the hierarchy - real shadows, cast
further across according to how high one window was above another, not just
the standard fixed-size shadow border.

Of course, I spent so much time on that (twelve-year old programmers are
rarely masters of source code control) I never actually thought of anything
which needed such an interface.

Big :-) here, I don't mean to brag (too much).

-- 
Kevin Martin
sigma@rpi.edu