cairo-set-line-join (cr join)

cr -- a cairo-t context
join -- a line join style of type cairo-line-join-t

Sets the current line join style within the Cairo context. 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 :miter.