Touch keyboard is not displayed properly on Windows

Touching a TextBox does not bring up the keyboard. Touching “native” Windows text input like Notepad or similar will bring up the keyboard.

Expected behavior When I touch a textbox on a touch screen I want this keyboard to be displayed:

• Avalonia
  • Version 11.0.preview4
• Windows
  • Edition: Windows 10 Pro
  • Version: 21H2
  • OS Build: 19044.2364
  • Display Language: English
  • Keyboard Layout: Swedish / English

_Originally posted by @mgnslndh in https://github.com/AvaloniaUI/Avalonia/discussions/9974

[tobyfirth]

Hi,

I have been doing a little bit of research on this. From my reading of Respond to the presence of the touch keyboard it seems to imply that the touch keyboard appearance is controlled by UI Automation. The AutomationPeer classes appear to be present in Avalonia so that might not be the case then.

For the input scope to show different keyboard layouts it looks like the interfaces from Text Services Framework would need to be implemented. Using the SetInputScope function is a possibility but the documentation suggests that applications should not be using this directly and implement the interfaces instead (ITfInputScope interface).

[Sorien]

maybe this could help https://stackoverflow.com/a/40921638 and for changing layout setinputscope should be working https://learn.microsoft.com/en-us/windows/win32/api/inputscope/nf-inputscope-setinputscope when added here https://github.com/AvaloniaUI/Avalonia/blob/38fb9f18c463abb39eedd49e3f97004d6f7dc6f5/src/Windows/Avalonia.Win32/Input/Imm32InputMethod.cs#L268