Returns the DST number for a process's compatibility mode stack.
cmstackdst (pin)
cmstackdst:u16 (pin:u16)
The process identification number (PIN) for which the DST number of the CM stack is to be returned.
$nmdebug > wl cmstackdst(8) $4f
If the PIN does not exist, the function result is undefined and an error status is set.
