https://docs.microsoft.com/en-us/windows/win32/api/winreg/nf...

LSTATUS RegCreateKeyExA(
  HKEY                        hKey,
  LPCSTR                      lpSubKey,
  DWORD                       Reserved,
  LPSTR                       lpClass,
  DWORD                       dwOptions,
  REGSAM                      samDesired,
  const LPSECURITY_ATTRIBUTES lpSecurityAttributes,
  PHKEY                       phkResult,
  LPDWORD                     lpdwDisposition
);