[Overview][Constants][Types][Classes][Procedures and functions][Index] | Reference for unit 'EditBtn' (#lcl)

# Reference for unit 'EditBtn': Constants

`NullDate` |  | Represents a TDateTime type without date and time values.
`NullTime` |  | Represents a TDateTime type without a time value assigned.
`ResBtnCalculator` |  | Resource name for the default glyph used on the Button in TCalcEdit.
`ResBtnCalendar` |  | Resource name for the default glyph used on the Button in TDateEdit.
`ResBtnFileOpen` |  | Resource name for the default glyph used on the Button in TFileNameEdit.
`ResBtnListFilter` |  | Resource name for the default glyph used on the Button in TCustomControlFilterEdit.
`ResBtnSelDir` |  | Resource name for the default glyph used on the Button in TDirectoryEdit.
`ResBtnTime` |  | Resource name for the default glyph used on the Button in TTimeEdit.