class hierarchy
===============

GObject 
|
+-iObject
  |
  +-Heap
  +-Imagemodel
  +-Toolviewitemgroup
  +-iContainer
    |
    +-Compile
    +-Expr
    +-Imageinfo
    +-Watch
    +-Model
      |
      +-Conversion
      +-Toolkitgroup
      +-Workspacegroup
      +-Filemodel
      | |
      | +-Tool
      | +-Toolkit
      | +-Column
      | +-Symbol
      |   |
      |   +-Workspace
      |
      +-Heapmodel
        |
        +-Rhs
        +-Subcolumn
        +-iText
        +-Row
        +-Classmodel
          |
          +-Slider
          +-Patch
          +-Filename
          +-Fontname
          +-Expression
          +-Number
          +-Matrix
          +-String
          +-Option
          +-Toggle
          +-iRegiongroup
          +-iArrow
          +-iImage
            |
            +-iRegion
 


GtkVBox

  View

    Textview
    Workspacegroupview
    Workspaceview
    Toolkitgroupview
    Toolkitview
    Toolview

    Graphicview

      Toggleview
      Sliderview
      Patchview
      Filenameview
      Fontnameview
      Optionview
      iArrowview
      Matrixview
      Regionview
      iImageview

        iRegionview

      Editview

        Stringview
	Numberview
	Expressionview

    Rhsview
    Rowview
    Subcolumnview
    Spin
    Columnview

    iRegiongroupview

  Imagepresent
  
GtkFrame

  Conversionview
  Statusview

GtkDrawingArea

  Imagedisplay

GtkWindow

  iWindow

    Imageview
    Program
    Trace

    iDialog

      Namecaption
      Find
      Imageheader
      Browse
      Filesel

GtkEventBox

  Formula