text-line

Arguments: stream line-number

stream should be a text-edit-pane window or multi-line-editable-text widget.

line-number should be a non-negative integer indicating which line of text to return, where zero indicates the first line of text.

The line number could be derived by calling a function such as current-line-number, line-number-from-char, or number-of-text-lines.

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Created 2012.5.30.