Как сохранить и получить строку из INI-файла

function IniGetStringValue(
  TheIniFile: string;
  IniSection: string;
  StringName: string;
  DefaultString: string): string;
var
  TheIni: TIniFile;
begin
  TheIni := TIniFile.Create(Self);
  try
    Result :=
      TheIni.ReadString(
      IniSection,
      StringName,
      DefaultString);
    if Result = '' then
      Result := DefaultString;
  finally
    TheIni.Free;
  end;
end;

function IniSetStringValue(
  TheIniFile: string;
  IniSection: string;
  StringName: string;
  StringValue: string): Boolean;
var
  TheIni: TIniFile;
begin
  TheIni := TIniFile.Create(Self);
  try
    try
      TheIni.WriteString(
        IniSection,
        StringName,
        StringValue);
      Result := True;
    except
      Result := False;
    end;
  finally
    TheIni.Free;
  end;
end;