BROOKS@CSSS-A.Prime.COM (08/13/88)
Hi -- I have a VDI programming problem, but first things first. We at
Prime just got our outbound news allegedly turned on (I know, I can
already hear you groaning) and I'd like to know if this reaches the
outside world.
So please send me mail at the address below, with or without the
answer, and I'll guarantee to reply to anything that I receive on or
before Friday 8/19.
Another meta-question: does Atari run a service for non-registered
developers to call with programming questions?
I'm trying to mark a spot on the screen with a colored cross, then
erase it again -- in other words, a XOR operation.
v_pmarker with writing mode set to XOR produces an XOR-ed black cross
(with writing mode REPLACE, we get the right color, but of course I
can't erase it).
vrt_cpyfm, REPLACE mode, also does a XOR-ed cross. XOR mode does
nothing.
vro_cpyfm does the trick.
Have I found known bugs (probably related) in v_pmarker and vrt_cpyfm?
I checked the bindings; they look OK (Mark Johnson C, with the
vrt_cpyfm binding corrected). ROMs are 11/20; GEM lessons from Tim
Oren.
Mail replies please; I'll post anything interesting.
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David Brooks Internet: BROOKS@CSSS-A.PRIME.COM
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