Binary buffer for @WINAPI?

[vefatica]

I don't know if this is feasible and it's not high on my list of features I crave

Can you give @WINAPI a binary buffer option, say "bBUFFER=<size>"? @WINAPI could return what's placed in the buffer in hex, as "XX XX ...". This might allow getting simple things like COORDs and RECTs and possibly more complicated structures (that don't require initialization).