refresh requesting means for requesting the selected window system processing means to refresh the graphic display after {TAIL ~ the data} has been returned to {HEAD ~ the first storing means} 
refresh requesting means for requesting the selected window system processing means to refresh the graphic display after { TAIL ~ the data } has been returned to { HEAD ~ the first storing means }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD