Apple Newton Utilities Guia do Utilizador Página 643

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CHAPTER 17
Additional System Services
Summary of Additional System Services 17-27
Summary of Additional System Services 17
This section summarizes the services documented in this chapter.
Undo 17
Functions and Methods 17
AddUndoCall(callBackFn, argArray) //registers a function to
//call for Undo
AddUndoSend(receiver, message, argArray) //registers a message
//to be sent for Undo
view:AddUndoAction(methodName, argArray) //registers an Undo
//action for a specific view
ClearUndoStacks() // clears Undo stack
Idlers 17
Method 17
view:SetupIdle(milliseconds) //sets up an idler object
Notication and Alarms 17
Proto 17
aProtoPeriodicAlarmEditor := { //creates periodic alarms
_proto: protoPeriodicAlarmEditor,
title : string, //text at top of view
ownerSymbol : symbol, //your appSymbol
ownerApp : string, //your app’s name
viewBounds : frame, //bounds frame
//don’t add child views
...
}
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