When developing or running interactive applications on a Displax TILE video wall, you may encounter a scenario where only one screen responds to touch at a time. If a user touches one screen, the other screens will not respond to simultaneous touches.
If you are experiencing this, it is not a hardware defect or a limitation of the Displax TILE. It is a known input handling limitation within the Windows Operating System.
To allow users to interact with your application on more than one screen at the same time (true simultaneous multi-screen touch), developers must build the application using Pointer events instead of standard Touch events.
Standard Touch Events: Windows limits standard touch events to the currently active display/window. If one screen is being touched, Windows locks the input, preventing other screens from registering touch simultaneously.
Pointer Events: Pointer events unify input from various devices (touch, mouse, pen) and allow the operating system to successfully route multiple, concurrent touch-points across multiple independent screens at the exact same time.
If you are programming a custom application for your video wall, you must update your code's event listeners to capture Pointer input.
For detailed technical documentation on how to implement this architecture in your application, please refer to the official Microsoft developer guide: