I’m developing my first touch screen application with the FEZ Cobra and the 3.5" touch screen module (EMX Firmware Version 188.8.131.52). I have found that when touching controls, sometimes other controls get selected (always above and to the left of the touched control).
To investigate I ran the Ink Canvas sample and found that a firm press draws in the correct place. However if you use a soft touch or are slow in applying the touch the resulting coordinates returned by the touch screen are somewhere between the touched location and the top left of the screen.
To me this sounds like an issue with the resistive touch screen and/or the touch screen’s A to D converters. My question is, has anyone else experienced this issue and is there anything I can do about it in code?
Any help would be greatly appreciated.