Atem Wireless Multiview.ps1

# Script created by Ian Morrish
# See https://ianmorrish.wordpress.com/2019/03/02/atem-wireless-multiviewer-with-touch-switching/
# Run Newtek studio monitor first, select input and set to full screen.

# this script requires my switcherlib.dll which you can get from the site above
# after starting this script, <ALT><Tab> to see the multiview live video feed (I will automate this soon)

#Show-Process "overlay"
# Connect to ATEM
function ConnectToATEM()
{
    Try{
        $ATEMipAddress = (Get-ItemProperty -path 'HKCU:\Software\Blackmagic Design\ATEM Software Control').ipAddress
        $DocumentsPath = [Environment]::GetFolderPath("MyDocuments") + '\windowspowershell\SwitcherLib.dll'
        add-type -path $DocumentsPath
        
        $Global:atem = New-Object SwitcherLib.Switcher($ATEMipAddress)
        $atem.Connect()
        }
        catch{
        write-host "Can't connect to ATEM on $($ATEMipAddrss)."
        Write-Host "ATEM controle software must be installed and have connected to switcher at least one time"
        Stop
        }
}
function CreateATEMObjects()
{
    $me=$atem.GetMEs()
    $Global:me1=$me[0]
    $Global:me2=$me[1]
    $Global:activeME = $me1
    if($me.count -gt 1){
        $Global:activeME = $me[1]
    }
    $MediaPlayers = $atem.GetMediaPlayers()
    $Global:MP1=$MediaPlayers[0]
    $Global:MP2=$MediaPlayers[1]

    $Global:Auxs=$atem.GetAuxInputs()
    $Global:aux1 = $auxs[0]

    $Global:USK = $ATEM.GetKeys()
    $Global:activeUSK = $USK[0]
    $Global:DSK = $ATEM.GetDSKs()
    $Global:activeDSK = $DSK[0]
    $global:mv=$atem.GetMultiViews()
}
ConnectToATEM
CreateATEMObjects

#Create hash of multiview window sources
$mvSource=@{}
$i=2
for($i; $i -lt 10; $i++){
    $mvSource.Add($i, $mv[0].GetWindowInput($i))
}

#ATEM MultiView click overlay
$inputXML = @"
<Window 
 xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" 
 xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" 
 x:Name="Window" 
  WindowStyle = "None" WindowState="Maximized"
 ResizeMode = "NoResize" Title = "overlay" AllowsTransparency = "True" Background = "Transparent" Opacity = "1" Topmost = "True">
  <Grid x:Name = "Grid" Background = "Transparent" ShowGridLines="True">
  <Grid.ColumnDefinitions>
    <ColumnDefinition Width="*" />
    <ColumnDefinition Width="*" />
    <ColumnDefinition Width="*" />
    <ColumnDefinition Width="*" />
  </Grid.ColumnDefinitions>
  <Grid.RowDefinitions>
  <RowDefinition Height="80" />
    <RowDefinition Height="*" />
    <RowDefinition Height="*" />
    <RowDefinition Height="*" />
    <RowDefinition Height="*" />
    <RowDefinition Height="80" />
  </Grid.RowDefinitions>  
  <Button Name="Cell1" Grid.Row="0" Grid.Column="0"  Opacity=".8"/>
<Button Name="Cell2" Grid.Row="0" Grid.Column="1"  Opacity=".8"/>
<Button Name="Cell3" Grid.Row="0" Grid.Column="2"  Opacity=".8"/>
<Button Name="Cell4" Grid.Row="0" Grid.Column="3"  Opacity=".8"/>
<Button Name="Cell5" Grid.Row="1" Grid.Column="0"  Opacity="0.01"/>
<Button Name="Cell6" Grid.Row="1" Grid.Column="1" Opacity="0.01" />
<Button Name="Cell7" Grid.Row="1" Grid.Column="2"  Opacity="0.01"/>
<Button Name="Cell8" Grid.Row="1" Grid.Column="3"  Opacity="0.01"/>
<Button Name="Cell9" Grid.Row="2" Grid.Column="0"  Opacity="0.01"/>
<Button Name="Cell10" Grid.Row="2" Grid.Column="1"  Opacity="0.01"/>
<Button Name="Cell11" Grid.Row="2" Grid.Column="2"  Opacity="0.01"/>
<Button Name="Cell12" Grid.Row="2" Grid.Column="3"  Opacity="0.01"/>
<Button Name="Cell13" Grid.Row="3" Grid.Column="0"  Opacity="0.01"/>
<Button Name="Cell14" Grid.Row="3" Grid.Column="1"  Opacity="0.01"/>
<Button Name="Cell15" Grid.Row="3" Grid.Column="2"  Opacity="0.01"/>
<Button Name="Cell16" Grid.Row="3" Grid.Column="3" Opacity="0.01"/>
<Button Name="Cell17" Grid.Row="4" Grid.Column="0"  Opacity="0.01"/>
<Button Name="Cell18" Grid.Row="4" Grid.Column="1"  Opacity="0.01"/>
<Button Name="Cell19" Grid.Row="4" Grid.Column="2"  Opacity="0.01"/>
<Button Name="Cell20" Grid.Row="4" Grid.Column="3" Opacity="0.01"/>
</Grid>
</Window>
"@
$inputXML = $inputXML -replace 'mc:Ignorable="d"','' -replace "x:N",'N' -replace '^<Win.*', '<Window'
[void][System.Reflection.Assembly]::LoadWithPartialName('presentationframework')
[xml]$XAML = $inputXML
#Read XAML

    $reader=(New-Object System.Xml.XmlNodeReader $xaml) 
  try{$Window=[Windows.Markup.XamlReader]::Load( $reader )}
catch [System.Management.Automation.MethodInvocationException] {
    Write-Warning "We ran into a problem with the XAML code.  Check the syntax for this control..."
    write-host $error[0].Exception.Message -ForegroundColor Red
    if ($error[0].Exception.Message -like "*button*"){
        write-warning "Ensure your &lt;button in the `$inputXML does NOT have a Click=ButtonClick property.  PS can't handle this`n`n`n`n"}
}
catch{#if it broke some other way :D
    Write-Host "Unable to load Windows.Markup.XamlReader. Double-check syntax and ensure .net is installed."
        }

# Create PowerShell object for each WPF button
$xaml.SelectNodes("//*[@Name]") | %{Set-Variable -Name "WPF$($_.Name)" -Value $Window.FindName($_.Name)}

# Map multiview window click to actual ATEM input ID
function buttonclicked($btnNAme){
 write-host $btnNAme
 switch($btnNAme){
     0{$Script:Window.close();break
     }
     {1..8 -contains $_}{
        #$me1.preview=$_
        $me1.preview=$mvSource[$btnNAme+1]
     }
     
 }
}

#Create event handlers (tried doing this in a cleaver foreach but it just wouldn't work)
$WPFCell4.add_click({buttonclicked 0})
$WPFCell13.add_click({buttonclicked 1})
$WPFCell14.add_click({buttonclicked 2})
$WPFCell15.add_click({buttonclicked 3})
$WPFCell16.add_click({buttonclicked 4})
$WPFCell17.add_click({buttonclicked 5})
$WPFCell18.add_click({buttonclicked 6})
$WPFCell19.add_click({buttonclicked 7})
$WPFCell20.add_click({buttonclicked 8})

$WPFCell3.add_click({$me1.cut()})

# Turn on WPF overlay display
$Window.ShowDialog() | out-null