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2.2.30.9 SAFEARRAYUNION

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The SAFEARRAYUNION union defines the mapping between the discriminant value and the contained array data.

 typedef 
  
 union _wireSAFEARRAY_UNION switch(unsigned long sfType) u {
   case SF_BSTR :  SAFEARR_BSTR BstrStr;
   case SF_UNKNOWN :  SAFEARR_UNKNOWN UnknownStr;
   case SF_DISPATCH :  SAFEARR_DISPATCH DispatchStr;
   case SF_VARIANT :  SAFEARR_VARIANT VariantStr;
   case SF_RECORD :  SAFEARR_BRECORD RecordStr;
   case SF_HAVEIID :  SAFEARR_HAVEIID HaveIidStr;
   case SF_I1 :  BYTE_SIZEDARR ByteStr;
   case SF_I2 :  WORD_SIZEDARR WordStr;
   case SF_I4 :  DWORD_SIZEDARR LongStr;
   case SF_I8 :  HYPER_SIZEDARR HyperStr;
 } SAFEARRAYUNION;

 _wireSAFEARRAY_UNION: MUST contain an instance of the type, according to the value of the union discriminant.

The sfType field MUST be marshaled as specified in [C706] section 14, with the exception that it MUST be marshaled by using a little-endian data representation, regardless of the data representation format label. For more information, see [C706] section 14.2.5.