Скрипт PowerShell для управления несколькими мониторами (без сторонних приложений) ⇐ C#

[Anonymous]

Я работаю над сценарием PowerShell, позволяющим управлять настройками экрана, не полагаясь на сторонние приложения или модули. Я нашел пару функций, в частности Set-ScreenResolution и Set-ScreenRefreshRate, которые кажутся именно тем, что мне нужно для этого проекта.
Однако я изо всех сил пытаюсь полностью понять, как они функции работают. Моя цель — объединить их в одну функцию и добавить дополнительный параметр, который позволит мне выбрать монитор для изменения, а не просто менять настройки на основном мониторе.
Если кто-нибудь может помочь объяснить, как это сделать эти функции работают или подскажут мне, как объединить их в одно решение, я был бы очень признателен!
Заранее спасибо за любую помощь!
function Set-ScreenResolution {

param (
[Parameter(Mandatory=$true, Position = 0)]
[int] $Width,

[Parameter(Mandatory=$true, Position = 1)]
[int] $Height
)

$pinvokeCode = @"
using System;
using System.Runtime.InteropServices;
namespace Resolution
{
[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 PrmaryScreenResolution
{
static public string ChangeResolution(int width, int height)
{
DEVMODE1 dm = GetDevMode1();
if (0 != User_32.EnumDisplaySettings(null, User_32.ENUM_CURRENT_SETTINGS, ref dm))
{
dm.dmPelsWidth = width;
dm.dmPelsHeight = height;
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 Problem 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;
}
}
}
"@
Add-Type $pinvokeCode -ErrorAction SilentlyContinue
[Resolution.PrmaryScreenResolution]::ChangeResolution($width, $height)
}

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;
}
}
}
"@

Add-Type $pinvokeCode -ErrorAction SilentlyContinue

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


Подробнее здесь: https://stackoverflow.com/questions/791 ... party-apps