10 CLOSE #1
20 OPEN #1: NAME "ZPL"
21 LET FEEDKEY = 3
25 LET A = SETVAR ( "device.frontpanel.line1" , "   Press Feed" )
26 LET B = SETVAR ( "device.frontpanel.line2" , "    For label" )
40 LET TMP = REGISTEREVENT(FEEDKEY,0,1)
50 LET EVT = HANDLEEVENT()
60 IF EVT = FEEDKEY THEN
70 PRINT #1: "^XA^A0N,50,50^FO50,50^FDFEEDKEY PRESSED^FS^XZ"
80 ENDIF
90 GOTO 50