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

# Reference for unit 'LMessages'

Contains Lazarus message codes and their mapping to message codes for other platforms/widgetsets.

`uses`
`Classes,`
`SysUtils,`
`Types,`
`LCLType,` |  | Provides compatibility with the Delphi Windows unit.
`WSReferences,` |  | Contains types used to represent references to widget set classes and their handles.
`GraphType;`

## Overview

lmessages.pp contains Lazarus message codes and their mapping to message codes for other platforms/widgetsets. lmessages.pp is part of the Lazarus Component Library (LCL).