Prevent Windows workstation (desktop) from locking while running a WPF program

Question

Issue:
I have a WPF fullscreen application, which acts as a dashboard. The computer is in domain and domain policies enforce the computer to be locked in 10 minutes after the last user activity. I want to prevent the workstation (or desktop) from locking automatically.
An example of such behavior: Windows Media Player, which prevents this while a movie is running.

Known solutions (kinda workarounds):

1. It is possible to send a Win32 Mouse Move event every fixed interval of time (for example, every minute)
2. It is possible to send a key to the program (for example "Left Shift" key up) every fixed interval of time (for example, every minute)

QUESTION:
How can I prevent windows workstation from locking without using these workarounds?

Disclaimer:
I was pretty sure, there should be a similar question answered somewhere on StackOverflow, but i didn't find any. I would appreciate, if you could point me into the right direction.

Answer 1

The solution has been pointed out through the comments, but I'm providing a simple starter solution for anyone else arriving via a web search:

/// <summary> /// Interaction logic for App.xaml /// </summary> public partial class App : Application {     [DllImport("kernel32.dll", CharSet = CharSet.Auto, SetLastError = true)]     static extern EXECUTION_STATE SetThreadExecutionState(EXECUTION_STATE esFlags);      public App()     {         InitializeComponent();          App.Current.Startup += new StartupEventHandler((sender, e) =>             {                 SetThreadExecutionState(EXECUTION_STATE.ES_DISPLAY_REQUIRED | EXECUTION_STATE.ES_CONTINUOUS);             });         App.Current.Exit += new ExitEventHandler((sender, e) =>             {                 SetThreadExecutionState(EXECUTION_STATE.ES_CONTINUOUS);             });     } }  [FlagsAttribute] public enum EXECUTION_STATE : uint {     ES_AWAYMODE_REQUIRED = 0x00000040,     ES_CONTINUOUS = 0x80000000,     ES_DISPLAY_REQUIRED = 0x00000002,     ES_SYSTEM_REQUIRED = 0x00000001     // Legacy flag, should not be used.     // ES_USER_PRESENT = 0x00000004 } 

An alternative place to put the logic would be within an event handler for StateChanged on your main application window:

this.StateChanged += new EventHandler((sender, e) =>     {         if (WindowState == System.Windows.WindowState.Maximized)         {             SetThreadExecutionState(EXECUTION_STATE.ES_DISPLAY_REQUIRED | EXECUTION_STATE.ES_CONTINUOUS);         }         else         {             SetThreadExecutionState(EXECUTION_STATE.ES_CONTINUOUS);         }     });