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RegDeleteKeyEx (KernelBase) function

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[This function is exported from KernelBase.dll in Windows 7 and Windows Server 2008 R2. This may change in subsequent versions. Instead of calling this function directly in KernelBase.dll, call the function through Advapi32.dll. See RegDeleteKeyEx.]

Deletes a subkey and its values from the specified platform-specific view of the registry.

Syntax

LONG WINAPI RegDeleteKeyEx(
  _In_       HKEY    hKey,
  _In_       LPCTSTR lpSubKey,
  _In_       REGSAM  samDesired,
  _Reserved_ DWORD   Reserved
);

Parameters

  • hKey [in]
    A handle to an open registry key. The access rights of this key do not affect the delete operation. For more information about access rights, see Registry Key Security and Access Rights.

    This handle is returned by the RegCreateKeyEx or RegOpenKeyEx function, or it can be one of the following predefined keys:

    HKEY_CLASSES_ROOT

    HKEY_CURRENT_CONFIG

    HKEY_CURRENT_USER

    HKEY_LOCAL_MACHINE

    HKEY_USERS

lpSubKey [in]

The name of the key to be deleted. This key must be a subkey of the key specified by the value of the hKey parameter.

The function opens the subkey with the DELETE access right.

Key names are not case sensitive.

The value of this parameter cannot be NULL.

samDesired [in]

An access mask the specifies the platform-specific view of the registry.

Value Meaning
KEY_WOW64_32KEY 0x0200

Delete the key from the 32-bit registry view.
KEY_WOW64_64KEY 0x0100

Delete the key from the 64-bit registry view.

 

Reserved

This parameter is reserved and must be zero.

Return value

If the function succeeds, the return value is ERROR_SUCCESS.

If the function fails, the return value is a nonzero error code defined in Winerror.h. You can use the FormatMessage function with the FORMAT_MESSAGE_FROM_SYSTEM flag to get a generic description of the error.

Requirements

Minimum supported client

Windows 7 [desktop apps only]

Minimum supported server

Windows Server 2008 R2 [desktop apps only]

Header

 Winreg.h (include Windows.h)

DLL

 KernelBase.dll

Unicode and ANSI names

RegDeleteKeyExW (Unicode) and RegDeleteKeyExA (ANSI)