[SOLVED] New to TFT LCD, want value to change while holding a button

You don't need have landscape or portrait anymore in the constructor, so now it is just TFT_Extension myTFT(&myGLCD, &myTouch);

And you also need to add in myTFT.ExtSetup(); directly under myTouch.setPrecision(PREC_LOW);

Once you do that, you shouldn't have anymore errors