add / fix in registry and registry sample

samples/registry.py

@@ -8,21 +8,21 @@ import windows
 registry = windows.system.registry
 print("Registry is <{0}>".format(registry))
 
-current_user = registry["HKEY_CURRENT_USER"]
+current_user = registry("HKEY_CURRENT_USER")
 print("HKEY_CURRENT_USER is <{0}>".format(current_user))
 subkeys_name = [s.name for s in current_user.subkeys]
 print("HKEY_CURRENT_USER subkeys names are:")
 pprint.pprint(subkeys_name)
 
-print("Opening 'Software' in HKEY_CURRENT_USER: {0}".format(current_user["Software"]))
-print("We can also open it in one access: {0}".format(registry[r"HKEY_CURRENT_USER\Sofware"]))
+print("Opening 'Software' in HKEY_CURRENT_USER: {0}".format(current_user("Software")))
+print("We can also open it in one access: {0}".format(registry(r"HKEY_CURRENT_USER\Sofware")))
 print("Looking at CurrentVersion")
 
-windows_info = registry["HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion"]
+windows_info = registry("HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion")
 print("Key is {0}".format(windows_info))
 
 print("values are:")
 pprint.pprint(windows_info.values)
 
-registered_owner = windows_info.get("RegisteredOwner")
+registered_owner = windows_info["RegisteredOwner"]
 print("registered owner = <{0}>".format(registered_owner))

windows/winobject/registry.py

@@ -68,6 +68,14 @@ class PyHKey(object):
                 res.append(_winreg.EnumValue(self.phkey, i))
         return [KeyValue(*r) for r in res]
 
+    @property
+    def info(self):
+        return _winreg.QueryInfoKey(self.phkey)
+
+    @property
+    def last_write(self):
+        return self.info[2]
+
     def get(self, value_name):
         """Retrieves the value ``value_name``
 
@@ -150,7 +158,10 @@ class Registry(object):
         """
 
         if name in self.registry_base_keys:
-            return self.registry_base_keys[name]
+            key = self.registry_base_keys[name]
+            if sam != key.sam:
+                key = key.reopen(sam)
+            return key
         if "\\" not in name:
             raise ValueError("Unknow registry base key <{0}>".format(name))
         base_name, subkey = name.split("\\", 1)