CALL "W$KEYBUF" USING WKBUF-START-RECORDING                         keyCodes                       [bufferSize]                 GIVING returnCode  | 
WKBUF-START-RECORDING  | Constant  | |
keyCodes  | PIC X(n)  | Receives the recorded keystrokes.  | 
bufferSize  | PIC 9(n)  | Optional parameter. It specifies the size of the recording buffer. If omitted, keyCodes is used entirely.  | 
0  | Operation successful.  | 
1  | Operation failed.  |