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Important: The information in this document is obsolete and should not be used for new development.

Chapter 2 - Memory Manager / Memory Manager Reference

Memory Manager Routines / Setting the Properties of Relocatable Blocks

HUnlock
You can use the HUnlock procedure to unlock a relocatable block so that it is free to move in its heap zone.
PROCEDURE HUnlock (h: Handle);
h
A handle to a relocatable block.

DESCRIPTION
The HUnlock procedure unlocks the relocatable block to which h is a handle, allowing it to be moved within its heap zone. If the block is already unlocked, HUnlock does nothing.

ASSEMBLY-LANGUAGE INFORMATION
The registers on entry and exit for HUnlock are
Registers on entry
A0 Handle to unlock

Registers on exit
D0 Result code

RESULT CODES
noErr 0 No error
nilHandleErr -109 NIL master pointer
memWZErr -111 Attempt to operate on a free block

Registers on entry
A0	Handle to unlock

Registers on exit
D0	Result code

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noErr	0	No error
nilHandleErr	-109	`NIL` master pointer
memWZErr	-111	Attempt to operate on a free block

Legacy Document

HUnlock

DESCRIPTION

ASSEMBLY-LANGUAGE INFORMATION

RESULT CODES noErr0No error nilHandleErr-109NIL master pointer memWZErr-111Attempt to operate on a free block

RESULT CODES
noErr 0 No error
nilHandleErr -109 `NIL` master pointer
memWZErr -111 Attempt to operate on a free block