text: **fContentNode**Specifies whether a**DocExComment_EndStructNode**structure marks 
  
  the end of this structure node. If**fContentNode**is**true**, a 
  
  **DocExComment_EndStructNode**structure closes off the content bounded by the node. 
  
  If this**fContentNode**has a**false**value, then the node does not bound any content. 
  
  The**fContentNode**member affects the interpretation of the parent ID value of 
  
  subsequent nodes. If**fContentNode**is**true**, nodes that are inserted between this 
  
  **DocExComment_BeginStructNode**and a subsequent**DocExComment_EndStructNode**, 
  
  and that have a parent ID of**-1**, are children of this node. However, if**fContentNode**is 
  
  **true**, nodes inserted after this**DocExComment_BeginStructNode**, and that have a 
  
  parent ID of**-1**, are not children of this node. They are children of the next-most-recently 
  
  specified node that has**fContentNode**equal to**false**. 
  
  You can nest document structure nodes to arbitrary depth. 
  
  **cwchAltText**Specifies the number of Unicode characters in the block of alternate text 
  
  that follows the structure. This Unicode string specifies alternate text for the node (for 
  
  example, alternate text for an image). 