It's saying:
'class button' has no member named 'define'
How would I go about solving this please? I am using the 4D System 43PT screen and the Arduino Mega 2560 controller.
Second question I have is how do I know that the LCD is set up in SCS rather than GFX? There was only the one pmmc file on 4D Systems web page so I loaded it up in the serial environment found in workshop 4.