How to delete a key from the registry using C++ ?

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Hi all,
I Searched how to delete a whole key from the Registry using c++
anyone here can help me because i didnt find any clear example about this subject.

the key path is like here :
Computer\HKEY_USERS\folder \folder\ folder\{Key name}.

So i want to delete this key by its path.

What I have tried:

i searched in other sites like stackover.. . and in microsoft site i didnt understand how their library works because i didnt see any clear example that explain how this could happen.

Posted 20-Oct-22 11:19am

Death Smoke

Updated 27-Oct-22 20:45pm

Michael Haephrati

v2

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This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

Rick York · Answer 1 · 2022-10-20T13:48:00

Solution 1

Have you investigated the RegDeleteKeyExA function (winreg.h) - Win32 apps | Microsoft Learn[^] ?

Here is another sample : Deleting Registry Key with Subkeys Win32 C program example[^]

Posted 20-Oct-22 13:48pm

Rick York

Michael Haephrati · Answer 2 · 2022-10-25T11:42:00

In the code below you can see how to delete a subkey or the entiry key

HKEY hKey = NULL;
long lReturn = RegOpenKeyEx( HKEY_USERS.
                             _T("folder \folder\ folder\{Key name}"),
                             0L,
                             KEY_SET_VALUE,
                             &hKey );
if (lReturn == ERROR_SUCCESS)
{
    lReturn = RegDeleteValue(hKey, _T("value1"));
    lReturn = RegDeleteValue(hKey, _T("value2"));
    lReturn = RegCloseKey(hKey);
}

Now to delete the entire key:

lReturn = RegDeleteKey(HKEY_CURRENT_USER, _T("folder \folder\ folder\{Key name}"));

How to delete a key from the registry using C++ ?

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How to delete a key from the registry using C++ ?

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