Rectangle Object

 

I am trying to change the font size of the description associated with a rectangle in an EA.

Changing the COLOR appears to work OK but the FONTSIZE doesn't appear to change

ObjectSetInteger(chart_ID,ObjName,OBJPROP_COLOR,Wheat);
   ObjectSetInteger(chart_ID,ObjName,OBJPROP_FONTSIZE,6);


ObjectSetText(ObjName, ObjText+"A",10, "Arial", Magenta); //   Works but does not change FONT & Color

 Any help appreciated