OK, I had to try the monitor on and off bit, and it worked! Too cool!
import com.sun.jna.Native;
import com.sun.jna.platform.win32.WinDef.HWND;
import com.sun.jna.platform.win32.WinDef.LPARAM;
import com.sun.jna.platform.win32.WinDef.LRESULT;
import com.sun.jna.platform.win32.WinDef.WPARAM;
import com.sun.jna.platform.win32.WinUser;
import com.sun.jna.win32.StdCallLibrary;
public class TurnOffMonitor {
public interface User32 extends StdCallLibrary {
User32 INSTANCE = (User32) Native.loadLibrary("user32", User32.class);
int SC_MONITORPOWER = 0xF170;
int SC_MONITOR_OFF = 2;
int SC_MONITOR_ON = -1;
LRESULT SendMessageA(HWND paramHWND, int paramInt, WPARAM paramWPARAM,
LPARAM paramLPARAM);
LRESULT SendMessageA(HWND paramHWND, int paramInt, int paramInt2,
LPARAM paramLPARAM);
}
private static final long SLEEP_TIME = 4 * 1000; // 4 seconds
public static void main(String[] args) {
final User32 user32 = User32.INSTANCE;
System.out.println("Foo");
user32.SendMessageA(WinUser.HWND_BROADCAST, WinUser.WM_SYSCOMMAND,
User32.SC_MONITORPOWER, new LPARAM(User32.SC_MONITOR_OFF));
try {
Thread.sleep(SLEEP_TIME);
} catch (InterruptedException e) {}
user32.SendMessageA(WinUser.HWND_BROADCAST, WinUser.WM_SYSCOMMAND,
User32.SC_MONITORPOWER, new LPARAM(User32.SC_MONITOR_ON));
}
}