[alt.graphics.pixutils] NuVista/CopyBits HELP????

morris@ucunx1.san.uc.edu (Ted Morris) (04/03/91)

 
We're trying to get a digitizing project up and running, and
have run into a snag on what we thought would be the most
simple aspect of the code--getting the material off the
digitizing board's video RAM and into the CPU memory so
it can be manipulated into files, etc.  The problem seems to
center around the usage of the CopyBits routine fromApple.
 
I have some sample Think C code, etc., as handed to me by our
contract programmer who is stuck on -why- his code (to take a
digitized image off the NuVista board and move it into CPU, so it
can be stored as a file) isn't working. NuVista's own "CAPTURE"
program works just fine in standalone mode; we're trying to do
this behind the scenes in response to a networked Mac's call to
the Mac with the laser disk player and NuVista board, "Hey--fetch
me the picture on frame n!"
 
He's got the network transport (TSSnet) down pat
(database is Oracle on a VAX with Oracle for Macintosh
as user interface to main activity running at this time),
but the damned COPYBITS is blowing up on him.
 
TrueVision has looked at this code and says, "Yeah, it
looks like it ought to work"--and then it bombs on their
machines, too.  They're going to take another look at it for us,
but we could still use your comments! (-:  Environment here:  Mac
II with 4-5 Meg + Virtual, System 6.0.4 or 6.0.5 (not sure).
 
IF I SEND YOU A DISK WITH THE CODE, CAN YOU HELP FIND WHAT'S
WRONG?  We're under a tight deadline, but desparate!  Thanks!
 
Ted Morris, University of Cincinnati, 513-558-6046 voice, 
513-558-0758 fax, AppleLink U1091, Internet MORRIS@UCUNIX.SAN.UC.EDU
-or- MORRIS@UCMCIC.OA.UC.EDU, snappy .sig in Beta@@#$@#$@#$$^$%!