Microsoft Foundation Classes (mfc.hlp) (Table of Contents; Topic list)
CObList::GetHeadPosition
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──Microsoft Foundation Classes──────────────────────────────────────────────
 
  POSITION GetHeadPosition() const;
 
  Remarks
 
  Gets the position of the head element of this list;
 
  Return Value
 
  A POSITION value that can be used for iteration or object pointer
  retrieval; NULL if the list is empty.
 
  Example
 
  CObList list;
  POSITION pos;
 
  list.AddHead( new CAge( 21 ) );
  list.AddHead( new CAge( 40 ) ); // List now contains (40, 21)
  if( ( pos = list.GetHeadPosition()) != NULL )
  {
      ASSERT( *(CAge*) list.GetAt( pos ) == CAge( 40 ) );
  }
 
 
  See Also
 
  ◄CObList::GetTailPosition►
 
 
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