cairo:line-join (cr)

cr -- a cairo:context-t instance
join -- a cairo:line-join-t value for the line join style

The cairo:line-join funcion gets the current line join style within the Cairo context. The (setf cairo:line-join) function sets the current line join style. See the cairo:line-join-t enumeration for details about how the available line join styles are drawn.

As with the other stroke parameters, the current line join style is examined by the cairo:stroke and cairo:stroke-extents functions, but does not have any effect during path construction.

The default line join style is the :miter value.