C# updating or adding value to registry

Question

Why this code is not working

    RegistryKey baseKey = RegistryKey.OpenBaseKey(RegistryHive.CurrentUser, RegistryView.Registry64);
RegistryKey key = baseKey.OpenSubKey(REGISTY_NOTIFICATION_ROOT_PATH, true);
    key.SetValue("NOC_GLOBAL_SETTING_ALLOW_TOASTS_ABOVE_LOCK", bytes, RegistryValueKind.DWord);

After this i am calling close to flush the changes.

key.Close();

Tried baseKey .Close(); also but no luck

Ideally it should update the notification setting but it is not. Is there any other way to update DWORD value in c#

Just to make it clear

I am using AppServiceConnection to actually communicate with win32 app and my win32 app is actual updating the Registry. My question is above code is not updating the registry value, It's not throwing any error but not updating the value also.

Thank

If you are trying this in a UWP application. You cant access registry. Because UWP is sandboxed environment. — Vignesh, Apr 25 '19 at 07:13

score 0 · Answer 1 · edited Jun 20 '20 at 09:12

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You can't access registry with uwp directly. Please check this case reply

You can read registry values from a Win32 runFullTrust background process launched from a UWP application, and you can write values in registry from an "elevated" Win32 application launched from that runFullTrust process.

For details steps please refer UWP sends request to desktop extension blog. This is code sample.

edited Jun 20 '20 at 09:12

Community

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answered Apr 26 '19 at 03:04

Nico Zhu

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Thanks for the update. I am aware of the AppServiceConnection. My question was, above code does not update the value in machines registry? – Pavan Tiwari Apr 27 '19 at 05:44
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Even a desktop bridge app can't modify the registry directly; there is a container that redirects registry writes. – Peter Torr - MSFT Apr 27 '19 at 05:54
Hi @PeterTorr-MSFT, Could you share more about the container that redirects registry writes? – Nico Zhu Apr 27 '19 at 17:03
https://learn.microsoft.com/en-us/windows/uwp/porting/desktop-to-uwp-behind-the-scenes – Peter Torr - MSFT Apr 27 '19 at 21:57

C# updating or adding value to registry

Just to make it clear

1 Answers1