# Extension in Layout 2016

**URL:** <https://forums.sketchup.com/t/extension-in-layout-2016/20120>\
**Category:** SketchUp SDK\
**Created:** [February 9, 2016, 1:30pm UTC](https://forums.sketchup.com/t/extension-in-layout-2016/20120 "2016-02-09T13:30:01Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![lunarjetset](https://avatars.discourse-cdn.com/v4/letter/l/57b2e6/32.png) [@lunarjetset](https://forums.sketchup.com/u/lunarjetset)\
**Post date:** [February 9, 2016, 1:30pm UTC](https://forums.sketchup.com/t/extension-in-layout-2016/20120/1 "2016-02-09T13:30:01Z")

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I’ve been successfully playing with the C api for Layout. But if I wanted to use what I’ve developed as an extension for Layout - is that possible - ie to have the window in Layout rather than being a separate Mac app.

If not - I would like it so if the user selects something in my app it could highlight it in Layout - is this possible with deep linking or any other api?

Thanks for the great work on the sdk for Layout btw

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**Author:** ![thomthom](https://sea2.discourse-cdn.com/sketchup/user_avatar/forums.sketchup.com/thomthom/32/12606_2.png) [@thomthom](https://forums.sketchup.com/u/thomthom)\
**Post date:** [February 9, 2016, 2:47pm UTC](https://forums.sketchup.com/t/extension-in-layout-2016/20120/2 "2016-02-09T14:47:25Z")

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At the moment the C API is only for reading and writing LayOut file. LayOut doesn’t have an API interface within the running application at this point.

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**Author:** ![lunarjetset](https://avatars.discourse-cdn.com/v4/letter/l/57b2e6/32.png) [@lunarjetset](https://forums.sketchup.com/u/lunarjetset)\
**Post date:** [February 13, 2016, 3:54pm UTC](https://forums.sketchup.com/t/extension-in-layout-2016/20120/3 "2016-02-13T15:54:57Z")

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> [@thomthom](#):
>
> At the moment the C API is only for reading and writing LayOut file. LayOut doesn’t have an API interface within the running application at this point.

Thanks for the info!

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**Author:** ![sirtet](https://avatars.discourse-cdn.com/v4/letter/s/bc8723/32.png) [@sirtet](https://forums.sketchup.com/u/sirtet)\
**Post date:** [January 3, 2017, 7:55am UTC](https://forums.sketchup.com/t/extension-in-layout-2016/20120/4 "2017-01-03T07:55:38Z")

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So, that is still true for lo2017?

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**Author:** ![Guy](https://sea2.discourse-cdn.com/sketchup/user_avatar/forums.sketchup.com/guy/32/88_2.png) [@Guy](https://forums.sketchup.com/u/Guy)\
**Post date:** [January 3, 2017, 10:22am UTC](https://forums.sketchup.com/t/extension-in-layout-2016/20120/5 "2017-01-03T10:22:58Z")

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yes it is still true for LO2017