Description
bool 
ps_set_border_dash ( resource psdoc, float black, float white )
   Links added with one of the functions ps_add_weblink(),
   ps_add_pdflink(), etc. will be displayed with a
   surounded rectangle when the postscript document is converted to
   pdf and viewed in a pdf viewer. This rectangle is not visible in
   the postscript document.
   This function sets the length of the black and white portion of a
   dashed border line.