Spindle tool info

[BluegrassPicker]

On Mori mills with fanuc 15-16 and 18's is there a variable where the spindle tool is kept? I am trying to wirte a macro to check spindle tool and skip m06 or do m06, but can't find the location of the info to test.

[theemudracer]

#4120 is the current T code or tool number code
#4111 is the current H code or tool length offset