[cairo] Drawing an arrow

[necko necko]

A set of 2D coordinates needs be connected by lines, but some of these lines need be arrows;
meaning, the sequence

    cairo_move_to (cr, A.x, A.y);
    cairo_line_to (cr, B.x, B.y);

that draws a line from A to B, needs to be replaced with an arrow from A to B.
Any help on how to achieve this is highly welcome.
Thanks

 		 	   		  
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