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RegCopyTree function

Applies to: desktop apps only

Copies the specified registry key, along with its values and subkeys, to the specified destination key.

Syntax

Copy

LONG WINAPI RegCopyTree(
  __in      HKEY hKeySrc,
  __in_opt  LPCTSTR lpSubKey,
  __in      HKEY hKeyDest
);

Parameters

hKeySrc [in]

A handle to an open registry key. The key must have been opened with the KEY_READ access right. For more information, see Registry Key Security and Access Rights.

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

lpSubKey [in, optional]

The name of the key. This key must be a subkey of the key identified by the hKeySrc parameter. This parameter can also be NULL.

hKeyDest [in]

A handle to the destination key. The calling process must have KEY_CREATE_SUB_KEY access to the key.

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

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.

Remarks

This function also copies the security descriptor for the key.

To compile an application that uses this function, define _WIN32_WINNT as 0x0600 or later. For more information, see Using the Windows Headers.

Requirements