When :nTop is changed after a TBrowse object is displayed, the method :configure() must be executed for the change to be visible.
Member variable TBrowse():nTop Foundation
Contains the top row position of the browse window on the screen.
This instance variable contains an integer numeric value which represents the top screen row used to display the TBrowse object. The value for :nTop can be passed to the class method :new(). If not passed to :new(), :nTop defaults to 0.
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