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

# Reference for unit 'HelpIntfs': Classes

`EHelpSystemException` |  | Exception raised for Help system errors.
`THelpManager` |  | Defines a help manager used to display a help query or a table of contents.
`THelpQuery` |  |
`THelpQueryClass` |  |
`THelpQueryContext` |  |
`THelpQueryDirective`
`THelpQueryKeyword` |  |
`THelpQueryMessage` |  |
`THelpQueryPascalContexts` |  |
`THelpQuerySourcePosition` |  |
`THelpQueryTOC` |  |