VARENUM enumeration (ks.h)

Specifies the variant types.

Syntax

typedef enum VARENUM {
  VT_EMPTY,
  VT_NULL,
  VT_I2,
  VT_I4,
  VT_R4,
  VT_R8,
  VT_CY,
  VT_DATE,
  VT_BSTR,
  VT_DISPATCH,
  VT_ERROR,
  VT_BOOL,
  VT_VARIANT,
  VT_UNKNOWN,
  VT_DECIMAL,
  VT_I1,
  VT_UI1,
  VT_UI2,
  VT_UI4,
  VT_I8,
  VT_UI8,
  VT_INT,
  VT_UINT,
  VT_VOID,
  VT_HRESULT,
  VT_PTR,
  VT_SAFEARRAY,
  VT_CARRAY,
  VT_USERDEFINED,
  VT_LPSTR,
  VT_LPWSTR,
  VT_FILETIME,
  VT_BLOB,
  VT_STREAM,
  VT_STORAGE,
  VT_STREAMED_OBJECT,
  VT_STORED_OBJECT,
  VT_BLOB_OBJECT,
  VT_CF,
  VT_CLSID,
  VT_VECTOR,
  VT_ARRAY,
  VT_BYREF,
  VT_RESERVED,
  VT_ILLEGAL,
  VT_ILLEGALMASKED,
  VT_TYPEMASK
} ;

Constants

VT_EMPTY Not specified.
VT_NULL Null.
VT_I2 A 2-byte integer.
VT_I4 A 4-byte integer.
VT_R4 A 4-byte real.
VT_R8 An 8-byte real.
VT_CY Currency.
VT_DATE A date.
VT_BSTR A string.
VT_DISPATCH An IDispatch pointer.
VT_ERROR An SCODE value.
VT_BOOL A Boolean value. True is -1 and false is 0.
VT_VARIANT A variant pointer.
VT_UNKNOWN An IUnknown pointer.
VT_DECIMAL A 16-byte fixed-pointer value.
VT_I1 A character.
VT_UI1 An unsigned character.
VT_UI2 An unsigned short.
VT_UI4 An unsigned long.
VT_I8 A 64-bit integer.
VT_UI8 A 64-bit unsigned integer.
VT_INT An integer.
VT_UINT An unsigned integer.
VT_VOID A C-style void.
VT_HRESULT An HRESULT value.
VT_PTR A pointer type.
VT_SAFEARRAY A safe array. Use VT_ARRAY in VARIANT.
VT_CARRAY A C-style array.
VT_USERDEFINED A user-defined type.
VT_LPSTR A null-terminated string.
VT_LPWSTR A wide null-terminated string.
VT_FILETIME A FILETIME value.
VT_BLOB Length-prefixed bytes.
VT_STREAM The name of the stream follows.
VT_STORAGE The name of the storage follows.
VT_STREAMED_OBJECT The stream contains an object.
VT_STORED_OBJECT The storage contains an object.
VT_BLOB_OBJECT The blob contains an object.
VT_CF A clipboard format.
VT_CLSID A class ID.
VT_VECTOR A simple counted array.
VT_ARRAY A SAFEARRAY pointer.
VT_BYREF A void pointer for local use.
VT_RESERVED Reserved.
VT_ILLEGAL An illegal value.
VT_ILLEGALMASKED An illegal masked value.
VT_TYPEMASK A type mask.

Remarks

The following table shows where these values can be used.

Value	VARIANT	TYPEDESC	Property set	Safe array
VT_ARRAY	X
VT_BLOB			X
VT_BLOB_OBJECT			X
VT_BOOL	X	X	X	X
VT_BSTR	X	X	X	X
VT_BYREF	X
VT_CARRAY	X
VT_CF			X
VT_CLSID			X
VT_CY	X	X	X	X
VT_DATE	X	X	X	X
VT_DECIMAL	X	X		X
VT_DISPATCH	X	X		X
VT_EMPTY	X		X
VT_ERROR	X	X	X	X
VT_FILETIME			X
VT_HRESULT			X
VT_I1	X	X	X	X
VT_I2	X	X	X	X
VT_I4	X	X	X	X
VT_I8		X	X
VT_ILLEGAL			X
VT_INT	X	X	X	X
VT_LPSTR		X	X
VT_LPWSTR		X	X
VT_NULL	X		X
VT_PTR			X
VT_R4	X	X	X	X
VT_R8	X	X	X	X
VT_SAFEARRAY		X
VT_STORAGE			X
VT_STORED_OBJECT			X
VT_STREAM			X
VT_STREAMED_OBJECT			X
VT_UI1	X	X	X	X
VT_UI2	X	X	X	X
VT_UI4	X	X	X	X
VT_UI8		X	X
VT_UINT	X	X		X
VT_UNKNOWN	X	X		X
VT_USERDEFINED			X
VT_VARIANT	X	X	X	X
VT_VECTOR			X
VT_VOID			X

Requirements

Requirement	Value
Header	ks.h