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[UWP] Pasting a text into an InputField does not work with UWP touch screen keyboard

Steps to reproduce:
1. Open the attached project
2. Switch platform to Universal Windows Platform
3. Build to generate Visual Studio project
4. Open Visual Studio solution
5. Build and Run the app (doesn't have to be a Touch device)
6. Copy text using the buttons or from any other app
7. Select the input field to give it focus (opens screen keyboard if on a touch device)
8. Try to paste text using keyboard shortcut (Ctrl+V) from either physical or screen keyboard
9. No text is pasted. Pasting in an other app works fine

NOTE: It is possible to test using Touch without an actual device. Visual Studio includes a touch "Simulator" device, to which you can deploy the app and inject Touch events (it's similar to a Windows Phone emulator). You might need to manually install it from Visual Studio Installer.

Actual results: No text is pasted. Pasting in an other app works fine
Expected results: Copied text is pasted

Reproduced with: 5.5.5p1, 5.6.4p2, 20171.2p3, 2017.2.0p2, 2017.3.0b9, 2018.1.0a4

Comments (2)

  1. 6f0e6c7134481295f3eb3efedf3404de?d=mm


    Mar 20, 2018 04:32

    Meant to also say, my debugger gave me an WPF Datagrid OpenClipboard Failed error. It blows up in the stacktrace way down in Kernel.dll or something around there. if that clue means anything to you.

  2. 6f0e6c7134481295f3eb3efedf3404de?d=mm


    Mar 20, 2018 04:30

    I am using 2017.2.0.f3 and have the same problem. If I disable the touchscreen device (windows key -> device manager -> Human Input Device Touchscreen (right click and disable), and restart my app, I don't have the problem.

    Considering using TouchscreenKeyboard.isSupported or something to avoid this, but very frustrated to find out about this!

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