1) Registry 편집 [HKEY_CURRENT_USER\Control Panel\Desktop] "ScreenSaverIsSecure"="1" (1- 설정, 0-해제) 2) cmd이용 reg add "HKEY_CURRENT_USER\Control Panel\Desktop" /v ScreenSaveTimeOut /t REG_SZ /d 300 /f reg add "HKEY_CURRENT_USER\Control Panel\Desktop" /v ScreenSaveActive /t REG_SZ /d 0 /f 3) WIN API 이용 방법 SystemParametersInfo(SPI_SETSCREENSAVERACTIVE, TRUE, 0, 0) DWORD dwTime = 180; SystemParametersInfo(SPI_SETSCREENSAVERTIMEOUT, dwTime, NULL, 0) Ref. https://msdn.microsoft.com/en-us/library/windows/desktop/ms724947(v=vs.85).aspx