Simple example

Pwsh/WindowsForms/ShowImage-Basic.ps1

@@ -0,0 +1,35 @@
+Add-Type -AssemblyName PresentationFramework
+$xaml = [xml]@'
+<?xml version="1.0" encoding="utf-8"?>
+<Window
+ xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+ xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+ Width="350" Height="350">
+    <DockPanel>
+        <Image Name="Chart" Width="350" Height="270" DockPanel.Dock="Top" />
+        <Button Name="Run" Content="Run" DockPanel.Dock="Bottom" />
+    </DockPanel>
+</Window>
+'@
+
+$window = [System.Windows.Markup.XamlReader]::Load(
+    [System.Xml.XmlNodeReader]$xaml )
+
+function Get-Chart {
+    # returns as a Uri for the form
+    param( [string]$Path = 'H:\data\2024\art\Walls\2017\2017-09-07 tileable fractal elephant.png')
+    $Path = Get-Item -ea 'stop' $Path
+    [Uri]( ('file://{0}' -f $Path) )
+}
+$window = [Windows.Markup.XamlReader]::Load(
+    [Xml.XmlNodeReader]$xaml
+)
+
+$button = $window.FindName('Run')
+$image  = $window.FindName('Chart')
+# $this is [Windows.Controls.Button], image is a [Windows.Controls.Image], Get-Chart is a [Uri], [Windows.Controls.Button]
+$button.Add_Click{
+    $image.Source = [System.Windows.Media.Imaging.BitMapImage]::new( (Get-chart) )
+}
+
+$window.ShowDialog()