Newton 2.x Q&A: ProtoPicker Lists are Sometimes Blank

ProtoPicker Lists are Sometimes Blank

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

NEW: ProtoPicker Lists are Sometimes Blank (5/16/97)

Q: I have a protoPicker that I reuse in my application. Sometimes the picker will be blank when I open it. What's happening?

A: ProtoPicker does not correctly reset the viewOriginY slot if you display a list that requires scrolling, and then display one that does not require scrolling. The solution is to manually reset the viewOriginY slot to 0 if you dynamically change the contents of the picker.