spiegel-keyman/web/docs/engine/reference/events/keyman/unloaduserinterface.md
Eberhard Beilharz 58915062f8
docs(web): add language identifier to the code blocks of event docs
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Test-bot: skip
2026-08-10 14:17:56 +02:00

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---
title: keyman.unloaduserinterface Event
---
## Summary
Called when allow ui clean-up.
## Syntax
```javascript
keyman.addEventListener('unloaduserinterface', function() {
...
});
```
### Parameters
None.
### Return Value
`boolean`
: `true` if the event should continue processing, `false` if it should
not. Your event handler should return `true` aside from exceptional
circumstances.
## Description
Called when the ui is to be unloaded, allowing cleanup of resources if
necessary.