How do you turn on and off a monitor from within a Java application?

Question

How do you turn on and off a monitor from within a Java application?

In case you\'re wondering why, this is a kiosk style application where it would be great to turn

Answer 1

Assuming you deploy your Java Applications on Windows, you can use this WIN32API functions:

// turn off monitor
SendMessage(HWND_BROADCAST, WM_SYSCOMMAND, SC_MONITORPOWER, (LPARAM) 2); 

// turn on monitor
SendMessage(HWND_BROADCAST, WM_SYSCOMMAND, SC_MONITORPOWER, (LPARAM) -1);    

Then you write a little C-JNI wrapper to functions that call the mentioned SendMessage and use the little wrapper to turn off the monitor from Java.