MF_ATTRIBUTE_TYPE enumeration (mfobjects.h)

Defines the data type for a key/value pair.

Syntax

typedef enum _MF_ATTRIBUTE_TYPE {
  MF_ATTRIBUTE_UINT32 = VT_UI4,
  MF_ATTRIBUTE_UINT64 = VT_UI8,
  MF_ATTRIBUTE_DOUBLE = VT_R8,
  MF_ATTRIBUTE_GUID = VT_CLSID,
  MF_ATTRIBUTE_STRING = VT_LPWSTR,
  MF_ATTRIBUTE_BLOB,
  MF_ATTRIBUTE_IUNKNOWN = VT_UNKNOWN
} MF_ATTRIBUTE_TYPE;

Constants

MF_ATTRIBUTE_UINT32 Value: VT_UI4 Unsigned 32-bit integer.
MF_ATTRIBUTE_UINT64 Value: VT_UI8 Unsigned 64-bit integer.
MF_ATTRIBUTE_DOUBLE Value: VT_R8 Floating-point number.
MF_ATTRIBUTE_GUID Value: VT_CLSID GUID value.
MF_ATTRIBUTE_STRING Value: VT_LPWSTR NULL-terminated wide-character string.
MF_ATTRIBUTE_BLOB Byte array.
MF_ATTRIBUTE_IUNKNOWN Value: VT_UNKNOWN IUnknown pointer.

Requirements

Requirement	Value
Minimum supported client	Windows Vista [desktop apps | UWP apps]
Minimum supported server	Windows Server 2008 [desktop apps | UWP apps]
Header	mfobjects.h (include Mfidl.h)

See also

IMFAttributes

Media Foundation Enumerations