cairo_set_line_cap 3 cairo_set_line_cap determine shape of line endings void cairo_set_line_cap (cairo_t *cr, cairo_line_cap_t line_cap) cr : a cairo_t line_cap : see cairo_line_cap_t for styles functions cairo_set_line_cap When the line width is larger than one device unit, it matters which way the ending of a line is drawn. Use this function to set the line-ending-style.