[comp.sys.sun] read

gropp-bill@cs.yale.edu (Bill Gropp) (04/23/89)

I have a simple sunview program that displays a color contour plot on a
3/60 under SunOS 4.0.1.  If I move the cursor into the plot while the
program is reading data, it dies.  The traceback (after my routines)
starts from _doscan, passes through layers of notify_... and ndis_...
calls, and ends with a SIGBUS in win_is_io_grabbed.  I've looked at my
Sunview manuals without finding anything helpful; my guess is that my
program is too simple, and that Sunview is expecting some event handler to
be present without checking.  Can anyone enlighten me?  Pointers to the
appropriate manual pages would be fine.

Bill Gropp