MicrosoftEdge / MicrosoftEdge/WebView2Feedback

UI Blocking occurs when an event of MFC Control occurs on top of WebView2.

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bug priority-low tracked
Dominant language
PowerShell
Stars
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Forks
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Description

https://user-images.githubusercontent.com/34335444/123605545-ebc01600-d836-11eb-9d40-dafa5260aa97.mp4

UI Blocking occurs when mouse up/down event occurs on MFC Control (Tab control) above WebView2.

However, hiding the window and showing it again solved the problem.

What causes these problems?

I am using vs2015, and it is a project created based on a MFC dialog box.

Version :
Microsoft.Web.WebView2 (1.0.864.35)
Microsoft.Windows.ImplementationLibrary (1.0.190610.2)

AB#34287592

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First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start with the attached video and reproduce the mouse up/down behavior on the MFC Tab control above WebView2 in the reported MFC dialog project. Check whether hiding and showing the window consistently clears the blocked UI, using the listed WebView2 and Windows Implementation Library versions; done means identifying the cause or a confirmed resolution.

Written by the indexing model from the issue text.

Assessment

Tech stack
cpp
Domain
desktop-dev
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
25/100

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