Hi Ed,

>if your DECLARE...DLL has a STRING @ parameter, passing an integer 0 works as a null pointer (equivalent to VB's vbNull construct.)

I usually pass .NULL. in this case, VFP translates that to 0, as well.

>a SHORT, which is two bytes, and can only be declared as the return type.

That's new to me. I used it as a parameter type in DECLARE and it worked, except for passing by reference in VFP 5, where the return value is always 0.

Christof