Redundant display when input Chinese on LineEdit (or TextEdit)

[Horbin-Magician]

Win11, Slint1.7.2, renderer-skia-opengl, Rust

I found that extra initial are rendered below the input box when , it is redundant.

This will only happen when you type immediately after the input box has gained focus, like:

LineEdit.mp4

If it's more difficult for you to reproduce, please let me know as much information as possible about the code and I'll be happy to help deal with this problem.

Below is my demo code:
lineedit_demo.zip

[ogoffart]

This is probably a problem in winit.

[tronical]

I can reproduce this with plain windows 11 and (simplified) Chinese input. (happens with any renderer, etc.)

[Horbin-Magician]

I have submit this problem on Winit, refering: rust-windowing/winit#3893

This issue may be caused by WM_IME_SETCONTEXT msg failing to hide composing text drawn by IME timely.