| gb.Null | Null value |
| gb.Boolean | Boolean value |
| gb.Byte | Byte integer number |
| gb.Short | Short integer number |
| gb.Integer | Integer number |
| gb.Float | Floating point number |
| gb.Date | Date and time value |
| gb.String | Character string |
| gb.Variant | Variant |
| gb.Object | Object reference |
| gb.File | Regular file |
| gb.Directory | Directory |
| gb.Device | Special file for a device |
| gb.Pipe | Named pipe |
| gb.Socket | Special file for a socket |
| gb.Link | Symbolic link |
| gb.NewLine | Newline character. Equivalent to Chr$(13) |
| gb.Tab | Tab character. Equivalent to Chr$(9) |
| gb.Binary | Binary sort |
| gb.Case | Case insensitive sort |
| gb.Lang | Language based sort |
| gb.GeneralNumber | Write a number with twelve decimal digits. Use scientific format if its absolute value is lower than 10-4 or greater than 107. |
| gb.Fixed | Equivalent to "0.00" |
| gb.Percent | Equivalent to "###%" |
| gb.Scientific | Write a number with its exponent and eighteen decimal digits. |
| gb.GeneralDate | Write a date only if the date and time value has a date part, and write a time only if it has a date part. |
| gb.LongDate | Long date format. |
| gb.MediumDate | Medium date format. |
| gb.ShortDate | Short date format. |
| gb.LongTime | Long time format. |
| gb.MediumTime | Medium time format. |
| gb.ShortTime | Short time format. |
| gb.Standard | Use gb.GeneralNumber for formatting numbers and gb.GeneralDate for formatting dates and times. |
Referenced by: GambasFormat GambasIndexByCategory GambasIndexByName GambasPredefinedConstants GambasStat GambasTypeOf GambasWeekDay