Technical Q&A's
QD3D 78 - QD3D Functions Not Interrupt Safe (11-July-97)
Q
Is it safe to call QuickDraw 3D functions from inside a vbl task?
A
No. The QD3D functions may allocate and dispose memory. Avoid calling any
QD3D routines at interrupt time, such as from a vbl task.
-- Scott Kuechle
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