# ActiViz in WPF

**URL:** https://discourse.vtk.org/t/activiz-in-wpf/10172
**Category:** Support
**Created:** [December 13, 2022, 2:55am UTC](https://discourse.vtk.org/t/activiz-in-wpf/10172 "2022-12-13T02:55:07Z")
**Posts on this page:** 2
**Page:** 1

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### Author: ![a772485252](https://discourse.vtk.org/user_avatar/discourse.vtk.org/a772485252/32/5327_2.png) [@a772485252](https://discourse.vtk.org/u/a772485252)
#### Post date: [December 13, 2022, 2:55am UTC](https://discourse.vtk.org/t/activiz-in-wpf/10172/1 "2022-12-13T02:55:07Z")

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In WPF, I wanted to lay out a ComboBox on RenderWindowControl, but failed. Is there any good way to do it? Other words, let the wpf control float on top of RenderWindowControl.

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### Author: ![ElenaChu](https://discourse.vtk.org/user_avatar/discourse.vtk.org/elenachu/32/7290_2.png) [@ElenaChu](https://discourse.vtk.org/u/ElenaChu)
#### Post date: [July 25, 2023, 11:55am UTC](https://discourse.vtk.org/t/activiz-in-wpf/10172/2 "2023-07-25T11:55:42Z")

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It is impossible. Look at this link [https://learn.microsoft.com/en-us/dotnet/desktop/wpf/advanced/technology-regions-overview?view=netframeworkdesktop-4.8](https://learn.microsoft.com/en-us/dotnet/desktop/wpf/advanced/technology-regions-overview?view=netframeworkdesktop-4.8)