Append the path onto the current path. The path may be either the
return value from one of cairo_copy_path() or
cairo_copy_path_flat() or it may be constructed manually. See
cairo_path_t for details on how the path data structure should be
initialized, and note that path->status must be
initialized to CAIRO_STATUS_SUCCESS.
Append the path onto the current path. The path may be either the return value from one of cairo_copy_path() or cairo_copy_path_flat() or it may be constructed manually. See cairo_path_t for details on how the path data structure should be initialized, and note that path->status must be initialized to CAIRO_STATUS_SUCCESS.