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IUNKNOWN Data Type Conversions

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Convert to type

Empty

IDISPATCH

NULL

VARIANT

Unsupported data type conversions

I1, I2, I4, I8, UI1, UI2, UI4, UI8, R4, R8, CY, NUMERIC, DECIMAL, DBTIME, DATE, DBDATE, DBTIMESTAMP, BOOL, BSTR, BYTES, ERROR, GUID, STR, WSTR

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