DLLStructSetData behavior with binary variant data

[evilertoaster]

As demonstrated in ​this thread

There might be some expected behavior when using DLLStructSetData with binary variants. Some examples:
Consider $a:

$a=DllStructCreate('byte[4]')

These two lines:

DllStructSetData($a,1,Binary('0xAABB'),2)

and

DllStructSetData($a,1,Number(Binary('0xAABB'),2)

Produce different results. (The first only sets 0xAA).

DllStructSetData($a,1,Binary('0xFFFFFFFF'),1)

and

DllStructSetData($a,1,Binary('0xFFFFFFFF'))

Also produce different results, the first only sets 0xFF. Even though according to the documentation, omitting the 1 as the index argument should be identical to specifying 1.

Help file says:
"If the element is an array, you need to specify which index to set, otherwise it sets index 1."

[anonymous]

Sorry I didn't check the claims made in the post avidly enough. The 2nd and 3rd code blocks do set the same data, but DllStructSetData($a,1,0xAABB,2) sets it differently. to me, I would have though all 3 to set the data to: 0xFFAABBFF.