# vtkCornerAnnotation Why do I use this to make the program become stuck？

**URL:** https://discourse.vtk.org/t/vtkcornerannotation-why-do-i-use-this-to-make-the-program-become-stuck/10934
**Category:** Development
**Tags:** code
**Created:** [March 10, 2023, 2:51am UTC](https://discourse.vtk.org/t/vtkcornerannotation-why-do-i-use-this-to-make-the-program-become-stuck/10934 "2023-03-10T02:51:14Z")
**Posts on this page:** 2
**Page:** 1

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### Author: ![marlon.ma](https://discourse.vtk.org/user_avatar/discourse.vtk.org/marlon.ma/32/6091_2.png) [@marlon.ma](https://discourse.vtk.org/u/marlon.ma)
#### Post date: [March 10, 2023, 2:51am UTC](https://discourse.vtk.org/t/vtkcornerannotation-why-do-i-use-this-to-make-the-program-become-stuck/10934/1 "2023-03-10T02:51:14Z")

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Am I using it incorrectly? I just call SetText and update it. It has a great impact on my program performance.

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### Author: ![marlon.ma](https://discourse.vtk.org/user_avatar/discourse.vtk.org/marlon.ma/32/6091_2.png) [@marlon.ma](https://discourse.vtk.org/u/marlon.ma)
#### Post date: [March 10, 2023, 2:04pm UTC](https://discourse.vtk.org/t/vtkcornerannotation-why-do-i-use-this-to-make-the-program-become-stuck/10934/2 "2023-03-10T14:04:39Z")

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I changed another computer and it became normal, indicating that this is related to the equipment