cairo-append-path (cr path)

cr -- a cairo-t context
path -- a cairo-path-t structure to be appended

Append path onto the current path. The path may be either the return value from one of the cairo-copy-path or cairo-copy-path-flat functions or it may be constructed manually. See the cairo-path-t structure for details on how the path data structure should be initialized, and note that the status of the path must be initialized to :success.