[comp.sys.mac.comm] VRM and VBL Questions

page@humu.NOSC.Mil (Ward C. Page) (04/03/91)

I have been playing with the Vertical Retrace Manager without much
success.  I am able to call VInstall without any errors but the VRM
doesn't ever call the routine that I pass to it.  Has anyone gotten
the VRM to successfully run a function?  Also, I am trying to have
the VRM do a CopyBits from an offscreen bitmap.  Does this violate
the warnings about mucking with the memory manager?

Ward Page
Naval Ocean Systems Center
Kaneohe, Hawaii