Retreive the datatips data structure from the polyline entity.
datatips_struct=datatipGetStruct(curve_handle)
datatipGetStruct extract the datatips data structure out of the polyline entity. It may be called to retreive properties of the datatips data structure to customize the tip display.
x=`linspace`_(0,1,100)';
y=x.^3;
`clf`_()
`plot`_(x,y);
e=`gce`_();p=e.children(1);//get the handle on the polyline
`datatipCreate`_(p,50);
`datatipCreate`_(p,20);
datatips_struct=datatipGetStruct(p)
datatips_struct.formatfunction