> For the complete documentation index, see [llms.txt](https://doc.sysdevmobile.com/kalipso/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://doc.sysdevmobile.com/kalipso/documentation/controls/events/scanner-trigger-pressed.md).

# Scanner Trigger Pressed

This Event is triggered when the scanner trigger is pressed

{% hint style="info" %}
This event is for Zebra, NordicID and Cipherlab.

In order for this event to work a call to ZebraScanConnect or ZebraRFIDConnect actions must be called. If you call ZebraScanConnect and after ZebraScanDisconnect, the event will continue to work.

* NordicID - it is available for Android only. In order for this event to work a call to NordicIDNURConnect action must be called. If you disconnect this will event stop working.
* Cipherlab - it is available for Android only. In order for this event to work a call to RFIDConnect action must be called. If you disconnect this will event stop working.
  {% endhint %}

#### Event available on the following operating systems

<figure><img src="https://1614058754-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FJ5vDGuBZwhJDeu5Rq7Wt%2Fuploads%2Fgit-blob-7a7ab3f3fc74afcaab1e0810f419316203cc49e1%2F01_Supported_OS.png?alt=media" alt="OS Supported: Android, iOS, Win, Win32"><figcaption></figcaption></figure>