☰

当某个程序运行时防止电脑进入睡眠状态？

tag-icon • tag-icon windows-10 sleep powercfg
当某个程序运行时防止电脑进入睡眠状态？

我有一个手机镜像程序 ( scrcpy)，并将笔记本电脑设置为 10 分钟后进入睡眠状态。我主要用它观看直播电视，但笔记本电脑在运行时会关闭。在网上阅读了相关信息后，我尝试使用powercfg -requestsoverride该程序，但似乎不起作用。我该怎么办？

编辑：顺便说一下，我正在使用 Windows 10。

答案1

保持显示开启- 运行一个程序，防止程序运行时睡眠或关闭显示器

这使用了 Windows 10 中的内置编译器（自 Windows Vista 以来一直如此） - 有三个 VB.NET 编译器和三个 C# 编译器 - 只需将每个文本文件复制到同一个文件夹中，然后双击批处理文件即可制作程序。

这使用 API 调用设置线程执行状态（https://docs.microsoft.com/en-us/windows/win32/api/winbase/nf-winbase-setthreadexecutionstate) 这就是程序告诉窗口不要进入睡眠状态的方式。

运行一个程序，防止程序运行时睡眠或关闭显示器

使用

 KeepDisplayOn "C:\windows\notepad"
 KeepSystemOn "C:\windows\notepad"

@Echo Off
ECHO Three files follow
ECHO PreventSleep.bat
ECHO.
ECHO This file compiles KeepDisplayOn.vb and KeepSystemOn.vb to KeepDisplayOn.exe and KeepSystemOn.exe using the system VB.NET compiler.
ECHO.
ECHO Runs a program preventing sleeping or the display turning off while the program runs
ECHO.
ECHO To Use
ECHO      KeepDisplayOn "C:\windows\notepad"
ECHO      KeepSystemOn "C:\windows\notepad"
ECHO.
C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc "%~dp0\KeepDisplayOn.vb" /out:"%~dp0\KeepDisplayOn.exe" /target:winexe
C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc "%~dp0\KeepSystemOn.vb" /out:"%~dp0\KeepSystemOn.exe" /target:winexe
pause

'KeepSystemOn.vb
imports System.Runtime.InteropServices
Public Module MyApplication 
Public Declare UNICODE Function SetThreadExecutionState Lib "Kernel32" (ByVal esFlags as Integer) as Integer
Public Const  ES_AWAYMODE_REQUIRED = &h40
Public Const  ES_CONTINUOUS = &h80000000
Public Const  ES_DISPLAY_REQUIRED = &h2
Public Const  ES_SYSTEM_REQUIRED = &h1
Public Const  ES_USER_PRESENT = &h4

 Public Sub Main ()
  Dim wshshell as Object
  Dim Ret as Integer
  WshShell = CreateObject("WScript.Shell")
  Ret = SetThreadExecutionState(ES_Continuous + ES_System_Required + ES_Awaymode_Required)
  WshShell.Run(Command(), , True)
 End Sub
End Module

'KeepDisplayOn.vb
imports System.Runtime.InteropServices
Public Module MyApplication 
Public Declare UNICODE Function SetThreadExecutionState Lib "Kernel32" (ByVal esFlags as Integer) as Integer
Public Const  ES_AWAYMODE_REQUIRED = &h40
Public Const  ES_CONTINUOUS = &h80000000
Public Const  ES_DISPLAY_REQUIRED = &h2
Public Const  ES_SYSTEM_REQUIRED = &h1
Public Const  ES_USER_PRESENT = &h4

 Public Sub Main ()
  Dim wshshell as Object
  Dim Ret as Integer
  WshShell = CreateObject("WScript.Shell")
  Ret = SetThreadExecutionState(ES_Continuous + ES_Display_Required + ES_Awaymode_Required)
  WshShell.Run(Command(), , True)
 End Sub
End Module

从https://winsourcecode.blogspot.com/2020/05/keepdisplayon-runs-program-preventing.html

答案2

不需要编译 vbs 脚本，这可以通过 Powershell 脚本完成，我刚刚在GitHub（及以下）。
此脚本允许您传递要监视的进程列表，以防止系统（-requiresSystem）或系统和显示器（-requiresDisplay）休眠。如果相应列表中的进程处于焦点状态或通常未最小化/隐藏（取决于参数），则可以防止显示器休眠。-focusOnly它可以运行一次或无限期地（-oneTime），具有可自定义的轮询率（-pollingRate）。
使用示例：

SnoozeGuard.ps1 -requiresDisplay "mstsc" -requiresSystem "handbrake" -focusOnly 0 -pollingRate 120 -oneTime 0

代码本身

param (
    [string[]]$requiresSystem,
    [string[]]$requiresDisplay,
    [int]$pollingRate = 120,
    [bool]$focusOnly = $true,
    [bool]$oneTime = $false
)

# Check if PowerState type is already defined (GPT suggests this, not sure why, since for me it does need to do this: possible for compatibility reasons?)
if (-not ([System.Management.Automation.PSTypeName]'PowerState').Type) {
    # Define the PowerState enumeration
    Add-Type @"
        using System;

        [Flags]
        public enum PowerState : uint
        {
            ES_CONTINUOUS = 0x80000000,
            ES_SYSTEM_REQUIRED = 0x00000001,
            ES_DISPLAY_REQUIRED = 0x00000002
        }
"@
}

# Check if NativeMethods type is already defined
if (-not ([System.Management.Automation.PSTypeName]'NativeMethods').Type) {
    # Define the NativeMethods class
    Add-Type @"
        using System;
        using System.Runtime.InteropServices;

        public class NativeMethods
        {
            [DllImport("kernel32.dll", SetLastError = true)]
            public static extern uint SetThreadExecutionState(uint esFlags);

            [DllImport("user32.dll")]
            public static extern IntPtr GetForegroundWindow();

            [DllImport("user32.dll", SetLastError = true)]
            public static extern uint GetWindowThreadProcessId(IntPtr hWnd, out uint lpdwProcessId);
        }
"@
}

if (-not ([System.Management.Automation.PSTypeName]'WindowMethods').Type) {
    # DEfine WindowMethods class
    Add-Type @"
        using System;
        using System.Runtime.InteropServices;
        public class WindowMethods {
            [DllImport("user32.dll")]
            [return: MarshalAs(UnmanagedType.Bool)]
            public static extern bool IsIconic(IntPtr hWnd);
            [DllImport("user32.dll")]
            [return: MarshalAs(UnmanagedType.Bool)]
            public static extern bool IsWindowVisible(IntPtr hWnd);
        }
"@
}

function SetExecutionState {
    param (
        [PowerState]$esFlags
    )

    $state = [PowerState]::ES_CONTINUOUS -bor $esFlags
    
    # Suppress the output of SetThreadExecutionState
    $result = [NativeMethods]::SetThreadExecutionState($state)

    if ($result -eq 0) {
        Write-Host "Error: Unable to set execution state." -ForegroundColor Red
    }

    Get-StateNames -Value ([NativeMethods]::SetThreadExecutionState(0))  # Get the current state
}

function Get-StateNames {
    param (
        [uint32]$Value
    )

    if ($Value -band [PowerState]::ES_SYSTEM_REQUIRED -and $Value -band [PowerState]::ES_DISPLAY_REQUIRED) {
        Write-Host "Fully awake" -ForegroundColor DarkGreen
    }
    elseif ($Value -band [PowerState]::ES_SYSTEM_REQUIRED) {
    Write-Host "System is awake" -ForegroundColor DarkYellow
    }
    elseif ($Value -band [PowerState]::ES_DISPLAY_REQUIRED) {
    Write-Host "Display is awake" -ForegroundColor DarkBlue
    }
    else {
        Write-Host "Feeling sleepy" -ForegroundColor Gray
    }
}

function IsProcessRunning {
    param (
        [string[]]$processName
    )

    foreach ($name in $processName) {
        Write-Host "Searching for ""$name""..." -ForegroundColor Gray
        $process = Get-Process -Name $name -ErrorAction SilentlyContinue
        if ($process) {
            Write-Host "Process ""$name"" found" -ForegroundColor Gray
            return $true
        }
    }

    return $false
}

function IsProcessFocused {
    param (
        [string]$name
    )

    $foregroundWindow = [NativeMethods]::GetForegroundWindow()

    if ($foregroundWindow -eq [IntPtr]::Zero) {
        return $false
    }

    $processId = 0
    [NativeMethods]::GetWindowThreadProcessId($foregroundWindow, [ref]$processId) | Out-Null

    $focusedProcess = Get-Process -Id $processId -ErrorAction SilentlyContinue

    if ($focusedProcess -and $focusedProcess.ProcessName -eq $name) {
        return $true
    }

    return $false
}

function IsProcessVisible {
    param (
        [string]$processName
    )

    # Get the process by name
    $process = Get-Process -Name $processName -ErrorAction SilentlyContinue

    # Check if the process is found
    if ($process -ne $null) {
        # Check if the main window is minimized or hidden
        if ($process.MainWindowHandle -ne [IntPtr]::Zero) {
            $mainWindow = $process.MainWindowHandle
            $isMinimized = [WindowMethods]::IsIconic($mainWindow)
            $isVisible = [WindowMethods]::IsWindowVisible($mainWindow)

            if ($isMinimized -or -not $isVisible) {
                return $false
            } else {
               return $true
            }
        }
    }
    return $false
}

while (($requiresSystem -ne $null -and $requiresSystem.Length -gt 0) -or ($requiresDisplay -ne $null -and $requiresDisplay.Length -gt 0)) {
    if (IsProcessRunning $requiresDisplay) {
        $executionState = [PowerState]::ES_SYSTEM_REQUIRED

        foreach ($name in $requiresDisplay) {
            if (($focusOnly -and (IsProcessFocused $name)) -or (-not $focusOnly -and ((IsProcessFocused $name) -or (IsProcessVisible $name)))) {

                Write-Host "Process ""$name"" wants display" -ForegroundColor Gray
                $executionState = $executionState -bor [PowerState]::ES_DISPLAY_REQUIRED
                break  # Exit the loop once one focused process is found
            }
        }

        SetExecutionState -esFlags $executionState
    } elseif (IsProcessRunning $requiresSystem) {
        SetExecutionState -esFlags ES_SYSTEM_REQUIRED
    } else {
        Write-Host "No processes found" -ForegroundColor Gray
    }

    if ($oneTime) {
        break
    } else {
        Start-Sleep -Seconds $pollingRate
    }
}

# Release the execution state when the process is not running
SetExecutionState -esFlags ES_CONTINUOUS | Out-Null

答案3

进程套索有一项功能可以在特定进程运行时阻止 PC 进入睡眠状态。它称之为防止睡眠规则，它可以只应用于显示器，也可以应用于整个 PC。在内部，它使用设置线程执行状态API，由其“Governor”服务调用。

进程套索上下文菜单提供防止睡眠（保持清醒）规则

相关内容