kind=defined
names=variable_kind
visibility=public

--- variable_kind

Returns variable kind string.

   tobj = WIN32OLE_TYPE.new('Microsoft Excel 9.0 Object Library', 'XlSheetType')
   variables = tobj.variables
   variables.each do |variable|
     puts "#{variable.name} #{variable.variable_kind}"
   end

   The result of above script is following:
     xlChart CONSTANT
     xlDialogSheet CONSTANT
     xlExcel4IntlMacroSheet CONSTANT
     xlExcel4MacroSheet CONSTANT
     xlWorksheet CONSTANT

