Prueba de pantalla táctil
Visualice puntos multitáctiles, rastree contactos simultáneos y dibuje sobre una cuadrícula de zonas muertas.
Interfaz de prueba
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Cómo utilizar esta herramienta
- Touch the test surface with one finger and confirm a point appears.
- Add more fingers and watch the simultaneous contact count.
- Drag across the grid to look for regions that do not respond.
- Use Clear to reset the canvas and test another area.
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Explicación técnica
Pointer Events and Touch Events expose contact identifiers and coordinates. The page tracks active pointers, removes them on release, and records coverage on a grid.
Browser event failures and hardware defects can look similar. A region that never registers may be a hardware issue, a browser gesture conflict, a screen protector, or a software limitation. This test cannot prove a hardware defect.
Solución de problemas
No touch points appear
Use a touchscreen device. Some laptops require the touchscreen to be enabled in the operating system.
Only one point is tracked
Check whether the browser or device limits multitouch. Try a different browser.
A region does not respond
Clean the screen, remove thick screen protectors, and test with another app. If multiple apps fail, the hardware may be faulty.
The page scrolls while testing
Touch gestures may compete with scrolling. Keep your gesture inside the test surface and use the dedicated controls.
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