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VARTYPE
VARTYPE is an enumeration type used in VARIANT, TYPEDESC, OLE property sets,
and safe arrays. The enumeration constants listed below are valid in the vt field of a VARIANT structure.
typedef unsigned short VARTYPE;
enum VARENUM{
VT_EMPTY = 0, // Not specified
VT_NULL = 1, // Null
VT_I2 = 2, // 2-byte signed int
VT_I4 = 3, // 4-byte signed int
VT_R4 = 4, // 4-byte real
VT_R8 = 5, // 8-byte real
VT_CY = 6, // Currency
VT_DATE = 7, // Date
VT_BSTR = 8, // Binary string
VT_DISPATCH = 9, // IDispatch FAR*
VT_ERROR = 10, // SCODE
VT_BOOL = 11, // Boolean; True=-1, False=0
VT_VARIANT = 12, // VARIANT FAR*
VT_UNKNOWN = 13, // IUnknown FAR*
VT_UI1 = 17, // Unsigned char
.
. //Other constants that are not valid in VARIANTs
.
};
VT_RESERVED = (int) 0x8000
// By reference: a pointer to the data is passed
VT_BYREF = (int) 0x4000
VT_ARRAY = (int) 0x2000 // A safe array of the data is passed
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