Created
February 7, 2022 13:59
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Change Screen resolution with powershell.exe (not pwsh.exe core!)
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# REF: https://kindleit.blogspot.com/2012/09/changing-screen-resolution-with.html | |
# Execute via ``powershell.exe -File .\path-to-script.ps1 1920 1080`` | |
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 PrimaryScreenResolution | |
{ | |
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 $pinvokeCode | |
[Resolution.PrimaryScreenResolution]::ChangeResolution($width,$height) |
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