musescore / musescore/MuseScore
[MU4 Issue] Shift-selecting switches IME language
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- Dominant language
- C++
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Description
Describe the bug
Pressing Shift while selecting alters the language of a multiple-language IME.
To Reproduce
Steps to reproduce the behavior:
- Use an IME that has multiple languages.
- Do a shift-selecting.
- See that the IME language is switched
Expected behavior
The IME language should not be switched
Platform information
- OS: Windows 11
Additional context
The reason this issue needs fixing is that switching the language could interrupt normal workflow, such as when pressing "C" under Chinese mode, the character is buffered into the IME (so that it is read as a part of the pinyin and results in a list of selectable Chinese characters) instead of being accepted by MuseScore.

Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
The issue names no source file, test, or entry point. Reproduce it on Windows 11 with a multi-language IME while shift-selecting, then verify that selection no longer changes the IME language and that typing such as "C" is accepted by MuseScore.
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
- 35/100