CeRegQueryInfoKey

function CeRegQueryInfoKey(

  hKey: HKEY;

  ClassName: LPWSTR;

  cchClass: PDWORD;

  Reserved: PDWORD;

  cSubKeys: PDWORD;

  cchMaxSubKeyLen: PDWORD;

  cchMaxClassLen: PDWORD;

  cValues: PDWORD;

  cchMaxValueNameLen: PDWORD;

  cbMaxValueData: PDWORD;

  cbSecurityDescriptor: PDWORD;

  LastWriteTime: PFILETIME

):LongInt;