OSD

21.2.3.1

Public/Display/Get-DisplayPrimaryScaling.ps1

<#
.SYNOPSIS
Returns the Primary Screen Scaling in Percent
 
.DESCRIPTION
Returns the Primary Screen Scaling in Percent
 
.LINK
https://osd.osdeploy.com/module/functions/display/get-displayPrimaryScaling
 
.NOTES
21.2.1 Initial Release
#>
function Get-DisplayPrimaryScaling {
    [CmdletBinding()]
    Param ()
  
    #Add-Type -Assembly System.Drawing
      # Get DPI Scaling
      #[void] [System.Reflection.Assembly]::LoadWithPartialName("System.Drawing")
  
    Add-Type @'
using System;
using System.Runtime.InteropServices;
using System.Drawing;
 
public class DPI {
[DllImport("gdi32.dll")]
static extern int GetDeviceCaps(IntPtr hdc, int nIndex);
 
public enum DeviceCap {
VERTRES = 10,
DESKTOPVERTRES = 117
}
 
public static float scaling() {
Graphics g = Graphics.FromHwnd(IntPtr.Zero);
IntPtr desktop = g.GetHdc();
int LogicalScreenHeight = GetDeviceCaps(desktop, (int)DeviceCap.VERTRES);
int PhysicalScreenHeight = GetDeviceCaps(desktop, (int)DeviceCap.DESKTOPVERTRES);
 
return (float)PhysicalScreenHeight / (float)LogicalScreenHeight;
}
}
'@ -ReferencedAssemblies 'System.Drawing.dll' -ErrorAction Stop
    Return [DPI]::scaling() * 100
}