isExtant: Check if widget is extant.
In gWidgets2: Rewrite of gWidgets API for Simplified GUI Construction

Widgets can be destroyed, but their R object is still present. This is FALSE in that case.

isExtant(obj)

## Default S3 method:
isExtant(obj)

obj

object

gWidgets2 documentation built on Jan. 11, 2022, 1:07 a.m.

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