The DATADIR enumeration values specify the direction of the data flow in the dwDirection parameter of the IDataObject::EnumFormatEtc method. This determines the formats that the resulting enumerator can enumerate.
typedef enum tagDATADIR
{
DATADIR_GET = 1,
DATADIR_SET = 2
} DATADIR;
Windows NT: Use version 3.1 and later.
Windows: Use Windows 95 and later.
Windows CE: Unsupported.
Header: Declared in objidl.h.