# Render() causes a non responding Visualization Toolkit - Win32OpenGL on Windows

**URL:** https://discourse.paraview.org/t/render-causes-a-non-responding-visualization-toolkit-win32opengl-on-windows/538
**Category:** ParaView Support
**Tags:** python
**Created:** [September 6, 2018, 10:28pm UTC](https://discourse.paraview.org/t/render-causes-a-non-responding-visualization-toolkit-win32opengl-on-windows/538 "2018-09-06T22:28:46Z")
**Posts on this page:** 1
**Showing post:** 6

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### Author: ![foadsf](https://discourse.paraview.org/letter_avatar_proxy/v4/letter/f/e68b1a/32.png) [@foadsf](https://discourse.paraview.org/u/foadsf)
#### Post date: [September 7, 2018, 2:39am UTC](https://discourse.paraview.org/t/render-causes-a-non-responding-visualization-toolkit-win32opengl-on-windows/538/6 "2018-09-07T02:39:28Z")

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I tried this on my mac using the `pvpython` as suggested [here](https://discourse.paraview.org/t/not-able-to-import-paraview-simple-module-on-windows/537/13?u=foadsf) . Although it is possible to move the window here, It is non responding here too.

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