musescore / musescore/MuseScore

[MU4 Issue] Incompatibility with caps-min & caps-lang (Windows)

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community P2
Dominant language
C++
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Description

Describe the bug
caps-min (source code) is a simple little program that changes keyboard layout by hitting Caps Lock instead of Windows' Win+Space/Alt+Shift
However, MuseScore freezes when the user does that.

To Reproduce
Steps to reproduce the behavior:

  1. Open MuseScore and caps-min
  2. Press Caps on keyboard
  3. MuseScore is not responding

Shown in video

Platform information
Windows 10 21H2, x64
Intel Core i5-11500 CPU (amd64)

Additional information
Layout switching works perfectly fine if you use one of Windows' shortucuts even if caps-min is running

Contributor guide

Open the contributing guide

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 by reproducing the freeze on Windows 10 with MuseScore and caps-min, following the listed steps and video. Trace what happens when Caps Lock triggers the external layout switch; done means MuseScore remains responsive and layout switching works while caps-min is running.

Written by the indexing model from the issue text.

Assessment

Tech stack
cpp
Domain
desktop, operating-systems
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
25/100

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