Labels:text | number | document | font | parallel | handwriting | screenshot | receipt OCR: Type Abb. Size (bytes) Level Delphi Standard Object Component Notes Alpha Ann nn bytes; Pre-4 TStringField TDBEdit 1 <= nn <= 255 Number N Pre-4 TFloatField TDBEdit 15 significant digits in the range of +10-100 to # 10 Money $ 8 Pre-4 TCurrencyField TDBEdit Same as Number, but displayed by default at two decimal places. Short S 2 Pre-4 TSmallIntField TDBEdit 16-bit signed integer; #2" with a bit for the sign; - 32,767 to +32,767; $00 holds the "null" value, Long Integer 1 1 5 TintegerField TDBEdit 32-bit signed integer; #2 with a bit for the sign; - 2,147,483,647 to +2,147,483,647; $0000 holds the "null" value. Date D 4 Pre-4 TDoteField TDBEdit A sequential number for each day, starting from 1/1/100, and allowing for leap years. Time T 4 5 TTimeField TDBEdit Milliseconds since midnight; 24 hours max. Timestamp @ 8 5 TDate TimeField TDBEdit A combination of a date and a time, each using four bytes, Memo Man 10 + nn in the .DB; 1 <= nn <= 240 4 TMemoField TDBMemo nn must be specified. Max size of 64MB per memo. Formatted F(nn) 10 + nn in the .DB; TBlobField TDBRichEdit 0 <= nn <= 240 5 nn is optional. Max size of 64MB Memo per memo, including formatting, Graphic Ginn) 10 + nn in the , DB; 5 TGraphicField TDBGraphic nn is optional. Max size of 64MB 0 <= nn <= 240 per image. OLE O(nn) 10 + nn in the , DB; 5 TBlobField TDBImage 0 <= nn <= 240 (see note) nn is optional. Max size of 64MB per OLE file. Binary B(nn) 10 + nn in the .DB; TBlobField TDBImage nn is optional. Max size of 64MB 0 <= nn <= 240 4 (see note) per object. Byte Yon nn bytes; 5 TBytesField TDBEdit 1 <m nn <= 255 Logical L 5 TBooleanField TDBCheckBox Only True, False, and Blank are allowed. True displays as checked, False as unchecked, and Blank as a grayed box. BCD # nn 5 TBCDField TDBEdit Binary Coded Decimal; used to 1 <= nn <= 32 avoid precision and rounding errors in calculations. nn represents the number of digits after the decimal. Autoincrement 4 5 TAutolncField TDBEdit Internally, this is a Long Integer Max of one per table; usually the primary key. Figure 1: The Paradox file format supports 17 field types.
