IUNKNOWN Data Type Conversions

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

This topic is a part of:

• OLE DB Provider for ODBC