SMS_RTHG

This trap removes a Thing from the list. The Trap cannot be used in the QDOS and SMSQ/E operating systems. Look at the Notes here for a solution.

Call Parameters		Return Parameters
D0.B	$27	D0.L	Error code.
A0.L	Pointer to Thing name.	A0.L	Preserved.

Errors

ERR_NF	Thing not found.
ERR_IU	Thing in use.

All registers not shown above are not used on entry and are preserved on exit.
If the Thing is found and is not being used it will be removed from the list and its linkage block returned to the heap.