User key assignment

[pinkman]

Hi,
Your code seems ok, there is only the famous RETURN -1; that is missing (see https://www.hpmuseum.org/forum/thread-14929.html)

Code:


KEY K_On() 
BEGIN 
LOCAL an:={"Textbook","Algebraic","RPN"}; 
Entry:=(Entry+1) MOD 3; 

STARTVIEW(-1,1); // Refresh Home view BEFORE tagging...

TEXTOUT_P(an(Entry+1),G0,2,207,2,RGB(255,0,0));
FREEZE; // the mean part!
RETURN −1;
END;