jellyfin/MediaBrowser.ServerApplication/Native/Standby.cs

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2016-04-23 18:38:36 +00:00
using System;
using System.Runtime.InteropServices;
namespace MediaBrowser.ServerApplication.Native
{
/// <summary>
/// Class NativeApp
/// </summary>
public static class Standby
{
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public static void PreventSleepAndMonitorOff()
{
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NativeMethods.SetThreadExecutionState(NativeMethods.ES_CONTINUOUS | NativeMethods.ES_SYSTEM_REQUIRED | NativeMethods.ES_DISPLAY_REQUIRED);
}
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public static void PreventSleep()
{
NativeMethods.SetThreadExecutionState(NativeMethods.ES_CONTINUOUS | NativeMethods.ES_SYSTEM_REQUIRED);
}
// Clear EXECUTION_STATE flags to allow the system to sleep and turn off monitor normally
public static void AllowSleep()
{
NativeMethods.SetThreadExecutionState(NativeMethods.ES_CONTINUOUS);
}
internal static class NativeMethods
{
// Import SetThreadExecutionState Win32 API and necessary flags
[DllImport("kernel32.dll", CharSet = CharSet.Auto, SetLastError = true)]
public static extern uint SetThreadExecutionState(uint esFlags);
public const uint ES_CONTINUOUS = 0x80000000;
public const uint ES_SYSTEM_REQUIRED = 0x00000001;
public const uint ES_DISPLAY_REQUIRED = 0x00000002;
}
[Flags]
internal enum EXECUTION_STATE : uint
{
ES_NONE = 0,
ES_SYSTEM_REQUIRED = 0x00000001,
ES_DISPLAY_REQUIRED = 0x00000002,
ES_USER_PRESENT = 0x00000004,
ES_AWAYMODE_REQUIRED = 0x00000040,
ES_CONTINUOUS = 0x80000000
}
}
}