On Windows, TapHandler receives an extra tap event when releasing a long press event on a touch screen. The extra tap event is caused by synthesized MouseButtonPress and MouseButtonRelease events.

To reproduce the issue on a touch screen:

• Run the attached example project.
• Long press until a long press event is generated, and then release.

As a workaround, filtering out synthesized mouse events solves the issue (in main.cpp, comment out line 41 and uncomment line 42).

The issue only appears on touch screens, but not with a mouse.