更改 Windows 10 屏幕刷新率。 59 如果 60, 60 如果 59

Question

如何将 Windows 显示设置刷新率从 59 更改为 60？

我找不到任何关于如何通过 PowerShell 或批处理脚本完成此操作的信息。 我只会在屏幕分辨率上找到任何东西。

我想要完成的是：

If 60 hz then set 59 hz
        else (set 60 hz)

但它似乎没有任何本机 cmdlet？

我只尝试搜索任何可能执行此操作的 cmdlet 或其他 wmi 解决方案，但只找到了如何更改显示分辨率。

编辑：

结合 mhu 发布的内容和 wmi，我设法获得了一个有点接近功能的解决方案。

$RefreshRate = Get-WmiObject -Class:Win32_videocontroller | Select-Object -ExpandProperty currentrefreshrate

if ($RefreshRate = 60){
    Set-ScreenResolution -Width 2560 -Height 1440 -Frequency 59
    }
else {
    Set-ScreenResolution -Width 2560 -Height 1440 -Frequency 60
    }

但是，这仍然不能使它在两个刷新率之间进行交换。 关于如何从 WmiObject 中获取数字的任何想法？

编辑2： 所以我在 Select-Object 中添加了 -ExpandProperty 参数。它现在只输出 60 或 59。但它仍然不会在两者之间交换 :(。

Answer 1

基于https://pastebin.com/QQkcveSM（已移除分辨率设置）：

function Set-ScreenRefreshRate
{ 
    param ( 
        [Parameter(Mandatory=$true)] 
        [int] $Frequency
    ) 

    $pinvokeCode = @"         
        using System; 
        using System.Runtime.InteropServices; 

        namespace Display 
        { 
            [StructLayout(LayoutKind.Sequential)] 
            public struct DEVMODE1 
            { 
                [MarshalAs(UnmanagedType.ByValTStr, SizeConst = 32)] 
                public string dmDeviceName; 
                public short dmSpecVersion; 
                public short dmDriverVersion; 
                public short dmSize; 
                public short dmDriverExtra; 
                public int dmFields; 

                public short dmOrientation; 
                public short dmPaperSize; 
                public short dmPaperLength; 
                public short dmPaperWidth; 

                public short dmScale; 
                public short dmCopies; 
                public short dmDefaultSource; 
                public short dmPrintQuality; 
                public short dmColor; 
                public short dmDuplex; 
                public short dmYResolution; 
                public short dmTTOption; 
                public short dmCollate; 
                [MarshalAs(UnmanagedType.ByValTStr, SizeConst = 32)] 
                public string dmFormName; 
                public short dmLogPixels; 
                public short dmBitsPerPel; 
                public int dmPelsWidth; 
                public int dmPelsHeight; 

                public int dmDisplayFlags; 
                public int dmDisplayFrequency; 

                public int dmICMMethod; 
                public int dmICMIntent; 
                public int dmMediaType; 
                public int dmDitherType; 
                public int dmReserved1; 
                public int dmReserved2; 

                public int dmPanningWidth; 
                public int dmPanningHeight; 
            }; 

            class User_32 
            { 
                [DllImport("user32.dll")] 
                public static extern int EnumDisplaySettings(string deviceName, int modeNum, ref DEVMODE1 devMode); 
                [DllImport("user32.dll")] 
                public static extern int ChangeDisplaySettings(ref DEVMODE1 devMode, int flags); 

                public const int ENUM_CURRENT_SETTINGS = -1; 
                public const int CDS_UPDATEREGISTRY = 0x01; 
                public const int CDS_TEST = 0x02; 
                public const int DISP_CHANGE_SUCCESSFUL = 0; 
                public const int DISP_CHANGE_RESTART = 1; 
                public const int DISP_CHANGE_FAILED = -1; 
            } 

            public class PrimaryScreen  
            { 
                static public string ChangeRefreshRate(int frequency) 
                { 
                    DEVMODE1 dm = GetDevMode1(); 

                    if (0 != User_32.EnumDisplaySettings(null, User_32.ENUM_CURRENT_SETTINGS, ref dm)) 
                    { 
                        dm.dmDisplayFrequency = frequency;

                        int iRet = User_32.ChangeDisplaySettings(ref dm, User_32.CDS_TEST); 

                        if (iRet == User_32.DISP_CHANGE_FAILED) 
                        { 
                            return "Unable to process your request. Sorry for this inconvenience."; 
                        } 
                        else 
                        { 
                            iRet = User_32.ChangeDisplaySettings(ref dm, User_32.CDS_UPDATEREGISTRY); 
                            switch (iRet) 
                            { 
                                case User_32.DISP_CHANGE_SUCCESSFUL: 
                                { 
                                    return "Success"; 
                                } 
                                case User_32.DISP_CHANGE_RESTART: 
                                { 
                                    return "You need to reboot for the change to happen.\n If you feel any problems after rebooting your machine\nThen try to change resolution in Safe Mode."; 
                                } 
                                default: 
                                { 
                                    return "Failed to change the resolution"; 
                                } 
                            } 
                        } 
                    } 
                    else 
                    { 
                        return "Failed to change the resolution."; 
                    } 
                } 

                private static DEVMODE1 GetDevMode1() 
                { 
                    DEVMODE1 dm = new DEVMODE1(); 
                    dm.dmDeviceName = new String(new char[32]); 
                    dm.dmFormName = new String(new char[32]); 
                    dm.dmSize = (short)Marshal.SizeOf(dm); 
                    return dm; 
                } 
            } 
        } 
"@ # don't indend this line

    Add-Type $pinvokeCode -ErrorAction SilentlyContinue

    [Display.PrimaryScreen]::ChangeRefreshRate($frequency) 
}

function Get-ScreenRefreshRate
{
    $frequency = Get-WmiObject -Class "Win32_VideoController" | Select-Object -ExpandProperty "CurrentRefreshRate"

    return $frequency
}

在你的情况下调用这个函数：

$currentFrequency = Get-ScreenRefreshRate
$newFrequency     = if ($currentFrequency -eq 59) { 60 } else { 59 }

Set-ScreenRefreshRate -Frequency $newFrequency