Identifies the ImageGear data types.

Values:

AM_TID_META_INT8	Data type is 8 bit signed integer.
AM_TID_META_UINT8	Data type is 8 bit unsigned integer.
AM_TID_META_INT16	Data type is 16 bit signed integer.
AM_TID_META_UINT16	Data type is 16 bit unsigned integer.
AM_TID_META_INT32	Data type is 32 bit signed integer.
AM_TID_META_UINT32	Data type is 32 bit unsigned integer.
AM_TID_META_BOOL	Data type is Boolean.
AM_TID_META_STRING	Data type is String.
AM_TID_META_RATIONAL_UINT32	Data type is Rational 32 bit unsigned integer.
AM_TID_META_RATIONAL_INT32	Data type is Rational 32 bit bit signed integer.
AM_TID_META_FLOAT	Data type is Float.
AM_TID_META_DOUBLE	Data type is Double.
AM_TID_RAW_DATA	Data type is Raw Data.
AM_TID_META_INT64	Data type is 64 bit signed integer.
AM_TID_META_UINT64	Data type is 64 bit unsigned integer.
AM_TID_META_STRING32	Data type is a String holding up to 32 characters. Corresponds to TW_STR32 data type of TWAIN API specification.
AM_TID_META_STRING64	Data type is a String holding up to 64 characters. Corresponds to TW_STR64 data type of TWAIN API specification.
AM_TID_META_STRING128	Data type is a String holding up to 128 characters. Corresponds to TW_STR128 data type of TWAIN API specification.
AM_TID_META_STRING255	Data type is a String holding up to 254 characters. Corresponds to TW_STR255 data type of TWAIN API specification.
AM_TID_META_STRING1024	Data type is a String holding up to 1024 characters. Corresponds to TW_STR1024 data type of TWAIN API specification.
AM_TID_META_STRING_UNICODE512	Data type is a String holding up to 512 unicode (wchar_t) characters. Corresponds to TW_UNI512 data type of TWAIN API specification.
AM_TID_META_DRECT	Data type is a AT_DRECT.