Disable virtual Keyboard in Windows 10 Tablet Mode for one Application

Question

We wrote a C#/WPF Application for Touch Devices and have allready implemented our own virtual keyboard. Since windows 10 anniversary (or earlier) we have problems with devices in "Tablet Mode". The default OSK opens whenever a input field is focused.

So the question is: Is it possible to disable the integrated OSK inside our application? If not, is possible to disable the OSK for JUST OUR APPLICATION via registry or settings?

Answer 1

I had exactly the same problem. Based on this thread, I managed to disable automatic keyboard (TabTip.exe) invocation by overriding OnCreateAutomationPeer method of TextBox:

class MyTextBox : TextBox
{
    protected override AutomationPeer OnCreateAutomationPeer()
    {
        return new FrameworkElementAutomationPeer(this);
    }
}