backKey

Type

message

Summary

Sent to the current card of the defaultStack when the hardware back button is pressed.

Syntax

backKey

Description

Handle the backKey message to perform an action when the back button is pressed.

The backKey message is sent to the current card of the defaultStack when the hardware back button is pressed.

note

If this message is passed or not handled, then the engine automatically quits.

Examples

on backKey
  answer "You pressed the back key" with "Okay"
end backKey

Related

message: searchKey, menuKey

property: defaultStack

Compatibility and Support

Introduced

LiveCode 5.0.1

OS

android

Platforms

mobile