(Windows, C++) setscrsave

http://msdn.microsoft.com/en-us/library/windows/desktop/ms724947%28v=vs.85%29.aspx

setscrsave.exe

// setscrsave: set screen saver (C) 2013 KIM Taegyoon

#include <cstdio>
#include "windows.h"
using namespace std;

unsigned int bScreensaverActive, nScreensaverTimeout, bSecure;

void get_setting() {   
    //To read
    SystemParametersInfo(SPI_GETSCREENSAVEACTIVE, 0, &bScreensaverActive, 0);
    SystemParametersInfo(SPI_GETSCREENSAVETIMEOUT, 0, &nScreensaverTimeout, 0);
    SystemParametersInfo(SPI_GETSCREENSAVESECURE, 0, &bSecure, 0); // Windows Server 2003 and Windows XP/2000:  This parameter is not supported.
    printf("Active: %d, Timeout: %d seconds, Secure: %d\n", bScreensaverActive, nScreensaverTimeout, bSecure);
}

int main() {
    puts("setscrsave: Set screen saver timeout to 10 minutes or under.");
    puts("(C) 2013 KIM Taegyoon\n");
    puts("Before:");
    get_setting();
    nScreensaverTimeout = min(nScreensaverTimeout, 600);

    //To set
    SystemParametersInfo(SPI_SETSCREENSAVEACTIVE, 1, NULL, SPIF_SENDCHANGE);
    SystemParametersInfo(SPI_SETSCREENSAVETIMEOUT, nScreensaverTimeout, NULL, SPIF_SENDCHANGE);
    SystemParametersInfo(SPI_SETSCREENSAVESECURE, true, NULL, SPIF_SENDCHANGE); // Windows Server 2003 and Windows XP/2000:  This parameter is not supported.
    puts("After:");
    get_setting();
    puts("Opening [Screen Saver] page...");
    system("control desk.cpl,,@screensaver");
    system("pause");
}