EditBtn unit

Implements specialized edit controls with attached speed buttons.

editbtn.pas contains specialized edit controls with an attached speed button used to perform an action when it is clicked. The following components are added to the Lazarus IDE Component Palette:

Misc tab

TEditButton
TFileNameEdit
TDirectoryEdit
TDateEdit
TTimeEdit
TCalcEdit

editbtn.pas is part of the LCL (Lazarus Component Library).

Classes and records

`TCalcEdit`	class	Implements an numeric edit control with a button to display a calculator dialog.
`TCustomControlFilterEdit`	class	Base class for edit controls which filter data in an associated control like TListbox or TTreeview.
`TCustomEditButton`	class	TCustomEditButton - base class for TEditButton, an Edit Box with attached Speed Button.
`TDateEdit`	class	Implements a control with an edit box for a date value and an attached speed button to display a date selection (calendar) dialog.
`TDirectoryEdit`	class	TDirectoryEdit - an EditBox to hold a directory name, with an attached SpeedButton that summons a Directory Open dialog.
`TEbEdit`	class	Implements the embedded edit control used in TCustomEditButton.
`TEditButton`	class	Implements a grouped edit control with both an Edit and a Button.
`TEditSpeedButton`	class	Implements a speed button used in TCustomEditButton.
`TFileNameEdit`	class	TFileNameEdit - an EditBox to hold a filename, with an attached SpeedButton that summons a File Open dialog.
`TTimeEdit`	class	Implements a control used to edit time values.

Procedures and functions

Register procedure Registers components in the unit for use in the Lazarus IDE.

Types

`TAcceptDateEvent`	procedure type	TAcceptDateEvent - generic event handling method for accepting a date from a dialog.
`TAcceptFileNameEvent`	procedure type	TAcceptFileNameEvent - generic event handling method to accept a filename from a dialog.
`TAcceptTimeEvent`	procedure type	Specifies an event handler used to validate and accept/reject a time value.
`TAcceptValueEvent`	procedure type	Specifies an event handler signalled when a calculator dialog has been used to accept or reject a value.
`TCheckItemEvent`	procedure type	Specifies an event handler is to determine if the specified Item is checked.
`TCustomDateEvent`	procedure type	Specifies an event handler used to examine or alter a String with a date value.
`TCustomTimeEvent`	procedure type	Specifies an event handler used to generate an arbitrary time value.
`TDateOrder`	enumeration	Controls the display order for Month, Day, and Year portions of a date value.
`TDateRangeCheckEvent`	procedure type	Specifies an event handler signalled prior to validating a date for it lower and upper limits.
`TDialogKind`	enumeration	Enumerated type representing dialog styles used in TFileNameEdit.
`TFilterItemEvent`	procedure type	Specifies an event handler used to filter data items in TCustomControlFilterEdit.
`TFilterItemExEvent`	procedure type	Specifies an event handler used to filter data items in TCustomControlFilterEdit.
`TFilterStringOption`	enumeration	String filter options which can be enabled in controls.
`TFilterStringOptions`	set	Set type used to store values from the TFilterStringOption enumeration.

Constants

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

Uses

An experiment, built from development snapshots. Not the official Free Pascal or Lazarus documentation.