[Overview][Constants][Types][Classes][Procedures and functions][Variables] | Reference for unit 'Classes' (#fcl)

# THelpEvent

Special event for display of online help.

## Declaration

`type THelpEvent = function(`
`Command: Word;`
`Data: LongInt;`
`var CallHelp: Boolean`
`):Boolean of object;`

## Description

This event is used for display of online help.

## See also

TNotifyEvent |  | Standard event handler type.
TGetStrProc |  | Event for retrieving string values.