For variable-length output parameters, the reference driver doesn't require client code to specify a Size, and uses a standard value instead (255 or 510 depending on the type).
This PR is to replicate this behaviour, since it's useful for drop-in-replacements where existing client code does not specify a Size
Fixes issue #33.
For variable-length output parameters, the reference driver doesn't require client code to specify a
Size, and uses a standard value instead (255or510depending on the type). This PR is to replicate this behaviour, since it's useful for drop-in-replacements where existing client code does not specify aSize