spec files and handles

With functions that take HANDLEs as arguments, what should that
argument be listed as in the spec file?  I thought HANDLEs were
void *'s, so ptr would seem right.  I found a function
(DebugBreakProcess in kernel32.spec) that takes a HANDLE and
has that listed as long in the spec.

So which should it be - ptr or long?

-Steve