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

# Reference for unit 'ComCtrls'

Several controls commonly used in Lazarus forms

`uses`
`System,`
`sysutils,`
`types,`
`Classes,`
`math,`
`LCLStrConsts,` |  | This unit contains all resource strings of the LCL
`LResources,` |  | This unit maintains and stores all lazarus resources in the global list named LazarusResources and provides methods and types to stream components
`LCLIntf,` |  | Contains winapi like functions for Delphi compatibility
`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.
`FileUtil,` |  | Miscellaneous procedures and functions for manipulating files and filenames
`LCLProc,` |  | Useful lower level helper functions and classes
`AvgLvlTree,` |  | An Average Level Tree structure, which is kept balanced so that finding a node is very rapid
`LMessages,` |  |
`ImgList,` |  | Contains definitions for TCustomImageList. base class for TImageList
`ActnList,` |  | Defines classes for Actions and Lists of actions to be used with LCL components
`GraphType,` |  | Definitions of several special types (including Raw Image) to be used for graphics
`Graphics,` |  | Unit contains definitions for many fundamental classes and types used in graphic applications
`Menus,` |  | Menus to be used in Forms created with the Lazarus IDE
`Controls,` |  | This unit contains basic classes for visual controls.
`Forms,` |  | Contains definitions and descriptions for constructing the Forms which are the basis of the Lazarus Graphical User Interface
`StdCtrls,` |  | Several standard controls used in most Lazarus forms
`ExtCtrls,` |  | Some extra controls commonly used in Lazarus forms
`ToolWin,` |  |
`Buttons,` |  | Defines several specialist button classes
`Themes;` |  | For manipulation of display Themes, mostly in a Windows XP (and later) environment

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