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Inside Macintosh: Memory /

Chapter 2 - Memory Manager / Memory Manager Reference

Memory Manager Routines / Accessing Heap Zones

SetZone

To change the current heap zone, you can use the SetZone procedure.

PROCEDURE SetZone (hz: THz);

hz

A pointer to the heap zone to make current.

DESCRIPTION

The SetZone procedure makes the zone to which hz points the current
heap zone. Often, you use the SetZone procedure in conjunction with one of
the ApplicationZone, SystemZone, HandleZone, and PtrZone functions. For example, the code SetZone(SystemZone) makes the system heap zone current.

ASSEMBLY-LANGUAGE INFORMATION

The registers on entry and exit for SetZone are

Registers on entry
A0	Pointer to new current heap zone

Registers on exit
D0	Result code

RESULT CODES

noErr

0

No error