WPF Applications Stop Responding to Touches after Adding or Removing Tablet Devices
WPF framework handles touch devices and events mostly using its own code and COM components instead of using the windows message loop. Unfortunately, there may be some bugs in the WPF touch handling codes. So we sometimes suffer from the WPF touch failures. This changes after Microsoft introducing .NET Framework 4.7, but the developers have to switch on the
Pointer message manually with some compliant issues.
In this article, I’ll post some codes of WPF to present its potential bugs of touch failure.