VARENUM enumeration

Specifies the variant types.

Syntax


enum VARENUM {
  VT_EMPTY             = 0, 
  VT_NULL              = 1, 
  VT_I2                = 2, 
  VT_I4                = 3, 
  VT_R4                = 4, 
  VT_R8                = 5, 
  VT_CY                = 6, 
  VT_DATE              = 7, 
  VT_BSTR              = 8, 
  VT_DISPATCH          = 9, 
  VT_ERROR             = 10, 
  VT_BOOL              = 11, 
  VT_VARIANT           = 12, 
  VT_UNKNOWN           = 13, 
  VT_DECIMAL           = 14, 
  VT_I1                = 16, 
  VT_UI1               = 17, 
  VT_UI2               = 18, 
  VT_UI4               = 19, 
  VT_I8                = 20, 
  VT_UI8               = 21, 
  VT_INT               = 22, 
  VT_UINT              = 23, 
  VT_VOID              = 24, 
  VT_HRESULT           = 25, 
  VT_PTR               = 26, 
  VT_SAFEARRAY         = 27, 
  VT_CARRAY            = 28, 
  VT_USERDEFINED       = 29, 
  VT_LPSTR             = 30, 
  VT_LPWSTR            = 31, 
  VT_RECORD            = 36, 
  VT_INT_PTR           = 37, 
  VT_UINT_PTR          = 38, 
  VT_FILETIME          = 64, 
  VT_BLOB              = 65, 
  VT_STREAM            = 66, 
  VT_STORAGE           = 67, 
  VT_STREAMED_OBJECT   = 68, 
  VT_STORED_OBJECT     = 69, 
  VT_BLOB_OBJECT       = 70, 
  VT_CF                = 71, 
  VT_CLSID             = 72, 
  VT_VERSIONED_STREAM  = 73, 
  VT_BSTR_BLOB         = 0xfff, 
  VT_VECTOR            = 0x1000, 
  VT_ARRAY             = 0x2000, 
  VT_BYREF             = 0x4000 

};

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_RECORD: A user-defined type.
VT_INT_PTR: A signed machine register size width.
VT_UINT_PTR: An unsigned machine register size width.
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_VERSIONED_STREAM: A stream with a GUID version.
VT_BSTR_BLOB: Reserved.
VT_VECTOR: A simple counted array.
VT_ARRAY: A SAFEARRAY pointer.
VT_BYREF: A void pointer for local use.

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_BSTR_BLOB
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_INT	X	X	X	X
VT_INT_PTR			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_RECORD	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_UINT_PTR			X
VT_UNKNOWN	X	X		X
VT_USERDEFINED			X
VT_VARIANT	X	X	X	X
VT_VECTOR			X
VT_VERSIONED_STREAM			X
VT_VOID			X

VT_BSTR_BLOB is reserved for system use.

Requirements

Header	WTypes.h