ruler

Arguments: rich-edit

Returns the name of the rich-edit-ruler control that is attached to rich-edit, which must be an instance of the rich-edit control class, if any, and nil otherwise. This property should be set only when creating the rich-edit by passing the name of the rich-edit-ruler control as the value of the :ruler initarg to make-instance.

When attaching a ruler interactively by dragging it onto a rich-edit control on a form, this property is set automatically.

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

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Created 2019.8.20.