[Index] | (#lcl)

# Reference for package 'lcl'

Lazarus Component Library

## Units

`ActnList` |  | Defines classes for Actions and Lists of actions to be used with LCL components
`AllLCLUnits` |  | AllLCLUnits - a dummy unit containing a Uses clause listing all the units in the Lazarus Component Library - probably used as a checklist for building Lazarus
`Arrow` |  | Defines the Arrow symbol widely used in Forms
`AsyncProcess` |  |
`AvgLvlTree` |  | An Average Level Tree structure, which is kept balanced so that finding a node is very rapid
`ButtonPanel` |  | A special panel containing a row of BitButtons
`Buttons` |  | Defines several specialist button classes
`Calendar` |  | Classes defining Calendar, a graphic allowing the user to select a date
`Chart` |  | Classes for constructing Bar Charts
`CheckLst` |  | Classes defining the CheckBox placed beside list items in a CheckList
`Clipbrd` |  | Definitions for the Clipboard to hold Cut or Copied data for Pasting
`ColorBox` |  | Defines Classes for selecting colour from a list or ComboBox
`ComCtrls` |  | Several controls commonly used in Lazarus forms
`Controls` |  | This unit contains basic classes for visual controls.
`CustomTimer` |  | Contains definition of base class for TTimer
`DBActns` |  | Standard actions to be used for navigating and manipulating datasets derived from external databases
`DbCtrls` |  | Data-Aware controls commonly used for viewing and operating on information held in databases
`DBGrids` |  | Data-Aware Grids to display and operate on information held in a database
`DefaultTranslator` |  |
`Dialogs` |  | Some dialogs commonly used in Lazarus applications. Look at the Procedures as well as the Classes
`DynamicArray` |  | It implements a resizable 2d array containing pointers.
`DynHashArray` |  | Module of managing dynamic sets or associative arrays
`DynQueue` |  |
`EditBtn` |  | Defines some special Edit Boxes with attached Speed Buttons
`ExtCtrls` |  | Some extra controls commonly used in Lazarus forms
`ExtDlgs` |  | Some useful extra dialogs such as Calendar, Calculator and Open/Save Picture
`ExtendedStrings` |  | Defines TExtendedStrings which is a normal TStringList, except that the Objects can hold any type of records
`extgraphics` |  |
`FileCtrl` |  | Class definitions for a box with a list of files for selection
`FileUtil` |  | Miscellaneous procedures and functions for manipulating files and filenames
`Forms` |  | Contains definitions and descriptions for constructing the Forms which are the basis of the Lazarus Graphical User Interface
`FPCAdds` |  |
`Graphics` |  | Unit contains definitions for many fundamental classes and types used in graphic applications
`GraphMath` |  | A Set of Mathematical Helper routines to simply Cross-Platfrom Canvas drawing etc
`GraphType` |  | Definitions of several special types (including Raw Image) to be used for graphics
`GraphUtil` |  |
`Grids` |  | Classes for displaying tabular data in the form of a grid of rows and columns
`HelpIntfs` |  |
`IcnsTypes` |  |
`ImageListCache` |  |
`ImgList` |  | Contains definitions for TCustomImageList. base class for TImageList
`IniPropStorage` |  |
`InterfaceBase` |  | Provides a widget set appropriate to the operating system platform in use
`IntfGraphics` |  | Classes and functions for easy handling of raw images (interface images)
`LazConfigStorage` |  |
`LazHelpHTML` |  |
`LazHelpIntf` |  |
`LazLinkedList` |  |
`lclbase` |  |
`lclbasedowngrade` |  |
`LCLClasses` |  | Defines the base class for all LCL TComponents including controls
`LCLIntf` |  | Contains winapi like functions for Delphi compatibility
`LCLMemManager` |  |
`LCLMessageGlue` |  |
`LCLProc` |  | Useful lower level helper functions and classes
`LCLResCache` |  | Types and methods to cache interface resources
`LCLStrConsts` |  | This unit contains all resource strings of the LCL
`LCLType` |  | This unit is being created specifically for compatibility with Delphi. It should only be used for constants and type definitions that are included in the Delphi Windows unit. This is only done for compatibiltiy.
`LCLUnicodeData` |  | Container for Unicode, Inc copyrighted data.
`LCLVersion` |  | Contains the version number constants of the LCL.
`LConvEncoding`
`LDockCtrl` |  | This unit contains visual components for docking and streaming
`LDockCtrlEdit` |  | This unit contains a dialog to dock or undock a control to another
`LDockTree` |  | This unit defines TLazDockTree, the default TDockTree for the LCL
`LMessages` |  |
`LResources` |  | This unit maintains and stores all lazarus resources in the global list named LazarusResources and provides methods and types to stream components
`maps` |  |
`MaskEdit` |  | Defines classes for Mask Editing, ie editing with a masking string in place to obscure the text being entered
`Masks` |  | This unit contains classes for mask matching.
`Menus` |  | Menus to be used in Forms created with the Lazarus IDE
`PairSplitter` |  |
`PopupNotifier` |  |
`PostScriptCanvas` |  |
`PostScriptPrinter` |  |
`postscriptunicode`
`Printers` |  | Defines Printers to be used as output from Lazarus applications
`PropertyStorage` |  |
`RubberBand` |  | Describes TRubberBand, for drawing a ring resembling a rubber band around a selection
`ShellCtrls`
`Spin` |  | This unit contains classes for spin edit controls.
`StdActns` |  | Defines some standard actions to be used in Action Lists in the LCL
`StdCtrls` |  | Several standard controls used in most Lazarus forms
`StringHashList` |  |
`TextStrings` |  | TTextStrings describes a TStrings descendant that is optimized for handling the complete text as whole (instead of line by line)
`Themes` |  | For manipulation of display Themes, mostly in a Windows XP (and later) environment
`TmSchema` |  |
`Toolwin` |  |
`Translations` |  |
`UTF8Process` |  |
`UTrace` |  |
`XMLPropStorage` |  |

## Description

The Lazarus Component Library is a set of visual components to create gui applications.

The latest version of this document can be found at lazarus-ccr.sourceforge.net.