Properly Registering a ViewDef

One of the Newton 2.x OS Q&As
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This document was exported on 7/23/97.

Properly Registering a ViewDef (1/3/97)

Q: When I add a viewDef using RegisterViewDef on Newton 2.0 OS, I get the "grip of death" alert ("The package 'MyApp' still needs the card you removed...") when the card the viewDef is on is removed. I don't get the grip of death alert when using Newton 2.1 OS. How can I keep the grip of death alert from appearing?

A: In Newton 2.0 OS, you must EnsureInternal the second argument to the RegisterViewDef global function. The RegisterViewDef global function was changed in Newton 2.1 OS to automatically EnsureInternal the second argument.

Note: EnsureInternal-ing something that has been EnsureInternal-ed is a very fast operation so you don't need to worry about checking which platform you are running on.