Bug in the SDK reference?

[pwnall]

The last sample in section 2.3.6.6 Array handling uses VT_IUNKNOWN. The headers don't seem to define that. Instead, a VT_UNKNOWN is defined.

Is this a typo in the SDK reference?

[noteirak]

Where do you see this exactly? Not sure which file/document you're refering to.

[pwnall]

I downloaded the SDK from here:
http://download.virtualbox.org/virtualb ... 100309.zip

I used the PDF at docs/SDKRef.pdf. The code in question is the 3nd sample in section 2.3.6.6, which is the 2nd sample on page 41. This is the line in question:
SAFEARRAY *psa = g_pVBoxFuncs->pfnSafeArrayCreateVector(VT_IUNKNOWN, 0, 1);

[noteirak]

Very good question, only the devs could answer that one. Does it work wiht VT_UNKNOWN instead of VT_IUNKNOWN?

[pwnall]

I got compilation errors when I used VT_IUNKNOWN. I wouldn't have noticed the issue otherwise.