Check Whether You Are Running on the UI Thread : Thread « Windows Presentation Foundation « C# / C Sharp
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Switching back to the UI thread in WPF/UWP, in modern C# | by Kevin Gosse | Criteo R&D Blog | Medium
![Multi UI thread visit the ContentPresenter at application startup may deadlock · Issue #6609 · dotnet/wpf · GitHub Multi UI thread visit the ContentPresenter at application startup may deadlock · Issue #6609 · dotnet/wpf · GitHub](https://user-images.githubusercontent.com/16054566/169939089-eabd0b3b-0952-49ac-b070-269fd94e8a43.png)
Multi UI thread visit the ContentPresenter at application startup may deadlock · Issue #6609 · dotnet/wpf · GitHub
![WriteableBitmap crashes on constructor when run from opentap UI test launcher editor - OpenTAP Community Forum WriteableBitmap crashes on constructor when run from opentap UI test launcher editor - OpenTAP Community Forum](https://global.discourse-cdn.com/business7/uploads/opentap/original/1X/410fd63c9ff0c915f5fc6c913e1bc631854fc9dc.png)