ComboEx unit

comboex.pas contains classes, types, and routines used to implement extended combo-box controls. The following components are added to the Lazarus IDE component palette:

Misc Tab

• TComboBoxEx
• TCheckComboBox

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

Classes and records

TCheckComboBox	class	Combo-box control which displays check boxes for the items in the control.
TCheckComboItemState	class	Represents state and data for a check box item displayed in TCustomCheckCombo.
TComboBoxEx	class	Implements an extended combo-box component.
TComboExItem	class	Implements an extended item used in TComboEx.
TComboExItems	class	Implements a collection for the items added to TCustomComboBoxEx.
TCustomCheckCombo	class	Base class for a combo-box which displays check boxes for Items in the control.
TCustomComboBoxEx	class	Implements the base class for an extended/enhanced combo-box.
TListControlItem	class	Implements a collection item added to a list control.
TListControlItems	class	Container for the items added to a list control.

Procedures and functions

Register

procedure

Registers components for use in the Lazarus IDE.

Types

TAutoCompleteOption	enumeration	Enumerated type with values representing the auto-complete options used in TComboBoxEx.
TAutoCompleteOptions	set	Sets type used to store TAutoCompleteOption values.
TCheckItemChange	procedure type	Specifies an event handler signalled when a check box in TCustomCheckCombo is changed.
TComboBoxExStyle	enumeration	Enumerated type with values for display styles available in TCustomComboBoxEx.
TComboBoxExStyleEx	enumeration	Enumerated type with values which modify the behavior in TComboEx.
TComboBoxExStyles	set	Set type used to store TComboBoxExStyle enumeration values.
TCustomData	type	Pointer type used to access the arbitrary data in TListControlItem.
TListCompareEvent	procedure type	Specifies a function type used to compare items in TComboEx.
TListItemsCompare	procedure type	Specifies a function type used to compare items in TComboEx.
TListItemsSortType	type	Alias to the TSortType in ComCtrls.pp

Uses

• Classes
• SysUtils
• Types
• LCLIntf
• LCLType
• LMessages
• LazLoggerBase
• ImgList
• Controls
• StdCtrls
• ComCtrls
• ExtCtrls
• Graphics
• GraphUtil
• Themes
• Forms