As always, please note that editing Registry entries can be dangerous. Now, on with the show! If the open fails, it's usually because the key doesn't exist, so we try to create the key in our exception handler. Then we use SetValueEx to actually set the value and like all good programmers, we clean up when we're done and close the key.
If you skipped the CloseKey command, you'd be fine in this case as the script is done and Python will do it for you. However, if you continued working on this key, you might have an access violation since it's already open.
Thus, the lesson is to always close a key when you finish editing it. The DeleteKey method is handy when you need to remove a key. DeleteValue is similar to DeleteKey, except that you delete just a value.
Registry module most appropriate. The Registry organizes parsing and access to the Windows Registry file. A RegistryKey may have children RegistryKeys , and may also have values associated with it. A RegistryValue can be thought of as the tuple name, datatype, value associated with a RegistryKey. Advanced users who wish to study the structure of the Windows Registry may find the Registry.
RegistryParse module useful. This module implements all known structures of the Windows Registry. Now he hopes it can be of use to someone outside of his lonely NYC apartment. If None , the local computer is used. The return value is the handle of the opened key. If the function fails, an OSError exception is raised. Raises an auditing event winreg. Creates or opens the specified key, returning a handle object. In that case, the handle returned is the same key handle passed in to the function.
See Access Rights for other allowed values. This value must not be None , and the key may not have subkeys. If the method succeeds, the entire key, including all of its values, is removed. If the method fails, an OSError exception is raised. See the RegDeleteKeyEx documentation. On unsupported Windows versions, NotImplementedError is raised. DeleteValue with arguments key , value. The function retrieves the name of one subkey each time it is called. It is typically called repeatedly until an OSError exception is raised, indicating, no more values are available.
EnumKey with arguments key , index. It is typically called repeatedly, until an OSError exception is raised, indicating no more values. An integer that identifies the type of the value data see table in docs for SetValueEx.
EnumValue with arguments key , index. ExpandEnvironmentStrings with argument str. It is not necessary to call FlushKey to change a key.
Registry changes are flushed to disk by the registry using its lazy flusher. Registry changes are also flushed to disk at system shutdown. It doesn't have "DisplayName" value associated with it, QueryValueEx throws an exception and the loop ends.
What then? Use bit Specific Types What if there's more than sub-keys in "Uninstall"? OpenKey winreg. VertigoRay VertigoRay 5, 4 4 gold badges 36 36 silver badges 46 46 bronze badges. Misses the last entry, the stop parameter for xrange is exclusive. Thanks, dropped the -1 , since I assume that's what you were talking about. Velociraptors Velociraptors 2, 16 16 silver badges 22 22 bronze badges. Jossef Harush Jossef Harush Thank you, this works. But how would I go about extracting values for a specific subkey?
If i drill down to a specific program for the key variable in the "Uninstall" directory for example, nothing gets returned. Eric Witt Eric Witt 21 1 1 bronze badge. Sign up or log in Sign up using Google. Sign up using Facebook.
0コメント