Polyline arrow

[Jonathan Armani <dbd asystant net>]

Hi,

The different values of a polyline arrow are "as a multiple of the line width", it works fine at the creation but
if I update the polyline line-width, arrow is not updated :

g_object_get(connection, "line-width", &current, NULL);
current += weight;
g_object_set(connection, "line-width", current, NULL);

How can I force the update of the arrow after ?

Thanks in advance