> For the complete documentation index, see [llms.txt](https://docs.luciq.ai/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.luciq.ai/references/sdk-event-handlers.md).

# SDK Event Handlers

- [Set Pre-Invocation Handler](https://docs.luciq.ai/references/sdk-event-handlers/set-pre-invocation-handler.md): API reference for Luciq's pre-invocation handler. Register a callback that fires before the Luciq UI is shown, allowing you to set additional context.
- [Set Pre-Sending Handler](https://docs.luciq.ai/references/sdk-event-handlers/set-pre-sending-handler.md): API reference for Luciq's pre-sending handler. Register a callback that fires before a report is sent, allowing you to modify or cancel submissions.
- [Set Did-Dismiss Handler](https://docs.luciq.ai/references/sdk-event-handlers/set-post-invocation-handler.md): API reference for the Luciq did-dismiss handler. Run your own code on the UI thread right after the Luciq interface is dismissed.
- [Set Received-Reply Handler](https://docs.luciq.ai/references/sdk-event-handlers/set-on-new-message-handler.md): API reference for the Luciq received-reply handler. Register a callback that fires when a new reply is received from your support team.
- [Set Will-Show-Survey Handler](https://docs.luciq.ai/references/sdk-event-handlers/set-will-show-survey-handler.md): API reference for Luciq's will-show-survey handler. Register a callback that fires before a survey is displayed and optionally prevent it from showing.
- [Set Dismissed-Survey Handler](https://docs.luciq.ai/references/sdk-event-handlers/set-dismissed-survey-handler.md): API reference for the Luciq dismissed-survey handler. Register a callback that runs immediately after a user dismisses a survey.


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