monitor_input_switch

<#
.SYNOPSIS
    Helper function to set the monitor input.
.DESCRIPTION
    Uses ControlMyMonitor.exe to adjust VPCCode 60 for your monitor input.
.EXAMPLE
    Set-MonitorInputSource -InputSource HDMI

    Switched to HDMI input
.EXAMPLE
    Set-MonitorInputSource -InputSource DisplayPort

    Switches to DisplayPort input
.PARAMETER InputSource
    HDMI or DisplayPort
.LINK
    https://www.nirsoft.net/utils/control_my_monitor.html
.LINK
    https://johnstonsoftwaresolutions.com/2019/02/09/tip-switch-monitor-inputs-with-command-line/
.NOTES
    ControlMyMonitor.exe does not support dynamically retrieving a lot of info.
    So, you will need to open ControlMyMonitor.exe and determine the names of your monitors.
    They should look something like: \\.\DISPLAY1\Monitor0
    Plug your monitor names into the $monitors array below.
    You may also have to fiddle with the settings of your input numbers.
    These will different between make/model and the connections you are using.
#>
function Set-MonitorInputSource {

    [CmdletBinding()]
    param(
        [ValidateSet('HDMI', 'DisplayPort')]
        [string]$InputSource

    )
    $ExePath = "$env:USERPROFILE\AppData\Local\ControlMyMonitor.exe"
    if (Test-Path $ExePath) {
        $InputSourceHash = @{
            'DisplayPort' = 15 #differs depending on monitor brand/model and connection
            'HDMI'        = 17 #differs depending on monitor brand/model and connection
        }
        $monitors = @(
            # you may have 1 or more monitors listed here
            '\\.\DISPLAY1\Monitor0',
            '\\.\DISPLAY2\Monitor0',
            '\\.\DISPLAY3\Monitor0'
        )
        foreach ($monitor in $monitors) {
            $argList = @(
                '/SetValue'
                $monitor
                '60'
                $InputSourceHash[$InputSource]
            )
            $argList
            Start-Process -FilePath $ExePath -ArgumentList $argList -Wait
        }
    }
    else {
        Write-Warning "Unable to locate ControlMyMoniror.exe at: [$ExePath]"
    }
}#Set-MonitorInputSource

<#
.SYNOPSIS
    Helper function to get VPC values from your monitor.
.DESCRIPTION
    Uses ControlMyMonitor.exe to retrieve VPCCode values from your monitor.
.EXAMPLE
    Get-MonitorVPCValue -VPCCode 60

    Returns value for VPC Code 60 - which is monitor input
.EXAMPLE
    Get-MonitorVPCValue -VPCCode 10

    Returns value for VPC Code 10 - which is monitor brightness level
.PARAMETER VPCCode
    VPC Code number
.LINK
    https://www.nirsoft.net/utils/control_my_monitor.html
.LINK
    https://johnstonsoftwaresolutions.com/2019/02/09/tip-switch-monitor-inputs-with-command-line/
.NOTES
    Open ControlMyMonitor.exe to determine what VPC Codes you can query.
#>
function Get-MonitorVPCValue {
    [CmdletBinding()]
    param(
        [string]$VPCCode
    )
    $ExePath = "$env:USERPROFILE\AppData\Local\ControlMyMonitor.exe"

    $argList = @(
        '/GetValue'
        '\\.\DISPLAY1\Monitor0'
        $VPCCode
    )

    $p = Start-Process -FilePath $ExePath -ArgumentList $argList -Wait -PassThru
    return $p.ExitCode
}#Get-MonitorVPCValue