Setting a value to "null" (in a SafeArray)

[MattWoberts]

Hi,

Its been years since I needed to work in VC++, and I have an embarrasingly simple question, that I can't work out!!

I have an array, and I need to set its value to "null".

My code that adds the value to the array is something like this:

_variant_t v2;
v2 = 10;
SafeArrayPutElement(psa,lDimension,&v2);

How can I set it to "null". Obviously, I can't just do this:

v2 = null;
SafeArrayPutElement(psa,lDimension,&v2);

Any ideas?

 

[MattWoberts]

Agh, found the answer myself:

MSDN artcile Q229088 has all the juicy info.

 

[obislavu]

The SafeArray does not allow VT_NULL vartype.
-obislavu-