c# - subscript Strings and add to Textboxes/Rectangle in Visio -

i hope can me. i'm working on tool creates technical drawings excel data.

some of desciption boxes on drawings have sub- or superscriptions.

i've found article related word: how add subscript characters in paragraphs using word automation?

but there's text directly edited, i'm not sure if possible when text in rectangle / textbox, mne object , not directly page.

here codesnippet:

"x" + **unsaturated + "unsat** ≤ " + dataserver.getprojectdata["motor"]["unsaturated commutation reactance " + unsaturated].last.value + " %";

the bolded part should subscripted example, there possibilty realize this?

thanks alot

mirko

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status: drop method:

public void drawer(shapeitem si, visio.master master)     {         //drops shape @ position x,y.         visio.shape shape = vpage.drop(master, (si.coordx / 100000), (si.coordy / 100000));         if (master.name.equals("rectangle") || master.name.equals("rechteck"))         {             shape.text = si.shapetext;             shape = stringformater.formattext(shape, si.shapename);              shape.linestyle = "none";             shape.style = "none";         }     } 

and stringformater.formattext:

protected static visio.shape formattext(microsoft.office.interop.visio.shape shape, string p)     {         string[] seperatewords = shape.text.split(' ');         //messagebox.show(string.join(",",seperatewords));         visio.characters vchars = shape.characters;         int start = 0;         int end = 0;         if (p.equals("head"))         {             foreach (string s in seperatewords)             {                 if (s.equals("skmin"))                 {                     vchars.begin = start + 1;                     end = start + s.length;                     vchars.end = end - 1;                     vchars.set_charprops(4, 2);                 }                 if (s.equals("skmax"))                 {                     vchars.begin = start + 1;                     end = start + s.length;                     vchars.end = end - 1;                     vchars.set_charprops(4, 2);                 }                 start += s.length;             }             messagebox.show(shape.text);         }          return vchars.shape;     }