ScilabHaveAGraph — Check if any Scilab graphics have been opened.
int ScilabHaveAGraph(void);
// A simple ScilabHaveAGraph example
int code=SendScilabJob("plot3d()"); /* This will failed since plot3d is
among the disable features*/
if (ScilabHaveAGraph()){
printf("Graphics\n");
}else{
printf("NO Graphics\n");
}