Similarly, if the external function you are calling has more parameters that can be accomodated with the callWith:with:... message you will need to use the callWithArray: message.
(PlatformFunctions at: 'DosBeep')
callWithArray: #(440 3000).
(PlatformFunctions at: 'Beep')
callWithArray: #(440 3000).
| context |
context := CgDisplay default handle.
(PlatformFunctions at: 'XBell')
callWithArray: #(context 50).