text: #   Licensed under the Apache License, Version 2.0 (the "License");
  #   you may not use this file except in compliance with the License.
  #   You may obtain a copy of the License at
  #
  #       http://www.apache.org/licenses/LICENSE-2.0
  #
  #   Unless required by applicable law or agreed to in writing, software
  #   distributed under the License is distributed on an "AS IS" BASIS,
  #   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  #   See the License for the specific language governing permissions and
  #   limitations under the License.
  
  import sys
  
  global JAVAHOME
  JAVAHOME = None
  
  if sys.platform == "win32":
      # figure out where the JDK lives
  
      try:
          import _winreg as wreg
  
          class WindowsRegistry:
              # see the Python Cookbook, #146305, Dirk Holtwick
  
              def __init__(self, keyname):
                  " handle registry access "
                  self.reg = wreg.ConnectRegistry(None, wreg.HKEY_LOCAL_MACHINE)
                  self.key = wreg.OpenKey(self.reg, keyname)
  
              def get(self, name):
                  " get value out of registry "
                  v, t = wreg.QueryValueEx(self.key, name)
                  return v, t
  
              def close(self):
                  " close the key finally "
                  if hasattr(self, 'key'):
                      self.key.Close()
                  if hasattr(self, 'reg'):
                      self.reg.Close()
  
              def __del__(self):
                  self.close()
  
          def get_registry_value(vname, subname):
              r = WindowsRegistry(vname)
              v, t = r.get(subname)
              return v
  
          javaversion = get_registry_value(r"SOFTWARE\JavaSoft\Java Development Kit", "CurrentVersion")
          JAVAHOME = get_registry_value(r"SOFTWARE\JavaSoft\Java Development Kit\%s" % javaversion, "JavaHome")
  
      except:
          JAVAHOME = 'c:/Program Files/Java/jdk1.6.0_18'
  