code: private String createString(String f)
      {
          return
              "dst="+dst+f+
              "pitch="+pitch+f+
              "value="+value+f+
              "elementSize="+elementSize+f+
              "width="+width+f+
              "height="+height;
      }
docs: Creates and returns a string representation of this object,
  using the given separator for the fields
  
  @param f Separator
  @return A String representation of this object