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param (
Position = 0)]
Position = 1)]
$pinvokeCode = @"
using System;
using System.Runtime.InteropServices;
namespace Resolution
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
public static extern int EnumDisplaySettings(string deviceName, int modeNum, ref DEVMODE1 devMode);
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.";
iRet = User_32.ChangeDisplaySettings(ref dm, User_32.CDS_UPDATEREGISTRY);
switch (iRet)
return "Success";
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.";
return "Failed To Change The Resolution";
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
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