text: **DocExComment_BeginTextRun**
  
  The**DocExComment_BeginTextRun**structure identifies the language of a sequence of 
  
  text in the document and provides the Unicode code points for the text. 
  
  Although some text-rendering EMF records use Unicode as the text representation, 
  
  others use the glyphs that are drawn on the screen, rather than the original source text. 
  
  A glyph is the index of a given shape in the font, which can be different from font to 
  
  font. 
  
  There can be cases where several Unicode code points are combined into a single glyph 
  
  or where a single Unicode code point is broken into multiple glyphs. Because the 
  
  mapping from code points to glyphs is context-dependent, a user cannot text search or 
  
  copy/paste in a document that contains only glyphs. Therefore, Publisher sometimes 
  
  provides the Unicode text as well as the glyphs. 