Re: #_GetGrayRgn

[lynch@aristotle.ils.nwu.edu (Richard Lynch)]

Further info.
The integer returned by (#_GetGrayRgn) is, by empirical evidence, the integer
that would be passed to %int-to-ptr to get the actual region.
Ie.  Defunning traps::%int-to-ptr and traps::%get-signed-long and calling
(%int-to-ptr (#_GetGrayRgn)) works.
Ugly, but it works.