SafeArraySetIID function (oleauto.h)

Sets the GUID of the interface for the specified safe array.

Syntax

HRESULT SafeArraySetIID(
  [in] SAFEARRAY *psa,
  [in] REFGUID   guid
);

[in] psa

The safe array descriptor.

[in] guid

The IID.

This function can return one of these values.

Return code	Description
S_OK	Success.
E_INVALIDARG	The argument psa is null or the array descriptor does not have the FADF_HAVEIID flag set.