underline

Arguments: text-edit-pane

The function returns t if all of the selected range of text-edit-pane is underlined, nil if it is all not underlined, and :some if there is a mix.

The setf function turns underlining on or off in the selected range of text-edit-pane. value is either nil to turn it off or true to turn it on.

text-edit-pane must be an instance of a text-edit-pane (which is a superclass of rich-edit-pane). It cannot be a text-edit-window or a rich-edit control (apply window to a rich-edit control to get a value suitable as an argument to this function).

See cg-rich-text.htm for information about rich text editing in Common Graphics.

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Created 2010.1.21.