d88-jwa@dront.nada.kth.se (Jon W{tte) (02/01/91)
In article <20601@unix.SRI.COM> larson@snmp.sri.com (Alan Larson) writes: > I am having trouble with calls to DDPWrite in Think C 4.0. > -111 memWZErr WhichZone failed (applied to free block) > -113 memAZErr Address in zone check failed > Here is an extract of my code. Since the activity is synchronous, I >have the ABusRecord allocated locally in the routine, so I generate >a handle to it. This is the problem. The zone check errors mean the mac tried to validate the handle - since it wasn't a valid handle, it failed. You should _NEVER_ _EVER_ pass a "pointer to a pointer" instead of a true Handle (as obtained from NewHandle) to a Toolbox routine that expects a handle. This is documented in IM and TechNotes. h+ :::::::: Jon W{tte, Stockholm, Sweden, h+@nada.kth.se :::::::: "The IM-IV file manager chapter documents zillions of calls, all of which seem to do almost the same thing and none of which seem to do what I want them to do." -- Juri Munkki (jmunkki@hut.fi) in comp.sys.mac.programmer