text: The**idNode**member specifies the ID of the node being passed in the call to 
  
  **HrBeginStructNode**. This member may not have a value of**0**. A value of**-1**indicates that 
  
  child nodes do not use the*idNodeParent*parameter to specify this node as their parent. 
  
  Instead, this node can be a parent only by enclosing child nodes in the EMF. Multiple 
  
  nodes can have an ID of**-1**. If the ID is not**-1**, the value is unique across the document. 
  
  The embedded union at the end of the MSODOCEXSTRUCTNODE is interpreted 
  
  differently depending on the type of node: 
  
  **iHeadingLevel**is the heading level for an msodocexStructTypeHeading. 
  
  **idPara**is the paragraph id for a P, TOCI, or ListBody. 
  
  **idDropCap**is the id of an msodocexStructTypeDropCap. 
  
  **iPage**is the page number for an msodocexStructTypePage. 
  
  **bt**is the line break type for an msodocexStructTypeTextLine. 
  
  **iListLevel**is the list level for an msodocexStructTypeList or 
  
  msodocexStructTypeListItem. 
  
  **listType**is the list type for an msodocexStructTypeListItem. 
  
  **idAtn**is the id of an msodocexStructTypeAnnotationBegin or 
  
  msodocexStructTypeAnnotationEnd. 
  
  **cpLim**is used to determine the nesting order of tables within tables for an 
  
  msodocexStructTypeTable, msodocexStructTypeTOC, or 
  
  msodocexStructTypeListBody. 