I got an ARM9 board running Linux 2.6 MontaVista. The board is running SimpleWidget GUI software to give a simple UI interface on a eTouch touchscreen panel. If I want to enable users to interact with the GUI via the touchscreen, how do I integrate the touchscreen X,Y touch data with the SimpleWidget GUI software? Or do I need to write user level code to read in the X,Y data via serial port and then somehow resolve the coordiates between the touchscreen and the SimpleWidget GUI and then call the necessary routines to update the screen based upon the users' actions?
The touchpanel sends down 5 bytes of data when the user touches and untouches the panel. It contains X and Y coordinates of the touch.
Do I need to calibrate the screen if our screen is always the same size, since it is an embedded product?
Any input would be appreciated....