submitActionScript =>qq{ getQE("answerBox").value=getGraph() },
with the following in the javascript section.
function getGraph() {
var applet = getApplet("$appletName");
var success = applet.writePNGtoFile("Quad_Lin_sys.png", 1, false, 300);
return success;
}
However, I think from reading the documentation on the geogebra site that the applet is probably blocked from saving anything on the sever unless it is signed with a certificate, and my server is not signed. I might be able to get a csr for my site, but wonder if I did would webwork even allow it.