# In the Visualizer, the image is transmitted synchronously or asynchronously?

**URL:** https://discourse.paraview.org/t/in-the-visualizer-the-image-is-transmitted-synchronously-or-asynchronously/6787
**Category:** Web Support
**Tags:** python
**Created:** [March 24, 2021, 1:30pm UTC](https://discourse.paraview.org/t/in-the-visualizer-the-image-is-transmitted-synchronously-or-asynchronously/6787 "2021-03-24T13:30:20Z")
**Posts on this page:** 3
**Page:** 1

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### Author: ![Superstarimage](https://discourse.paraview.org/letter_avatar_proxy/v4/letter/s/977dab/32.png) [@Superstarimage](https://discourse.paraview.org/u/Superstarimage)
#### Post date: [March 24, 2021, 1:30pm UTC](https://discourse.paraview.org/t/in-the-visualizer-the-image-is-transmitted-synchronously-or-asynchronously/6787/1 "2021-03-24T13:30:20Z")

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Hello,  
When reading the soure codes about the Visualizer, we find that the image data is transmitted using wslink. But we are not sure that the image is transmitted synchronously, or asynchronously. So we come here for help.  
Thanks a lot!

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### Author: ![jourdain](https://discourse.paraview.org/user_avatar/discourse.paraview.org/jourdain/32/11_2.png) [@jourdain](https://discourse.paraview.org/u/jourdain)
#### Post date: [March 24, 2021, 3:48pm UTC](https://discourse.paraview.org/t/in-the-visualizer-the-image-is-transmitted-synchronously-or-asynchronously/6787/2 "2021-03-24T15:48:19Z")

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asynchronously

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### Author: ![Superstarimage](https://discourse.paraview.org/letter_avatar_proxy/v4/letter/s/977dab/32.png) [@Superstarimage](https://discourse.paraview.org/u/Superstarimage)
#### Post date: [March 25, 2021, 2:05am UTC](https://discourse.paraview.org/t/in-the-visualizer-the-image-is-transmitted-synchronously-or-asynchronously/6787/3 "2021-03-25T02:05:49Z")

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Thank you very much!