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ci: automate GUI screenshot capture on Windows runner
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‎.github/scripts/screenshot.ps1‎

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param(
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[string]$ExePath = "bin/Release/SciLors Mashed Trainer.exe",
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[string]$OutputDir = "screenshots"
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)
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$ErrorActionPreference = "Continue"
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# 1. Adjust resolution so the 1330x940 window fits completely on screen
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try {
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Set-DisplayResolution -Width 1920 -Height 1080 -Force
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Start-Sleep -Seconds 1
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} catch {
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Write-Host "Set-DisplayResolution not supported or failed: $_"
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}
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New-Item -ItemType Directory -Force -Path $OutputDir | Out-Null
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Add-Type -AssemblyName System.Drawing
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Add-Type -AssemblyName System.Windows.Forms
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Add-Type @"
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using System;
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using System.Runtime.InteropServices;
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public class Win32 {
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[DllImport("user32.dll")] public static extern bool SetForegroundWindow(IntPtr hWnd);
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[DllImport("user32.dll")] public static extern bool ShowWindow(IntPtr hWnd, int nCmdShow);
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[DllImport("user32.dll")] public static extern bool GetWindowRect(IntPtr hWnd, out RECT lpRect);
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[StructLayout(LayoutKind.Sequential)]
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public struct RECT {
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public int Left; public int Top; public int Right; public int Bottom;
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public int Width { get { return Right - Left; } }
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public int Height { get { return Bottom - Top; } }
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}
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}
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"@
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function Save-Bitmap([System.Drawing.Bitmap]$bmp, [string]$outFile) {
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$bmp.Save($outFile, [System.Drawing.Imaging.ImageFormat]::Png)
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$bmp.Dispose()
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Write-Host "Saved: $outFile"
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}
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function Capture-FullScreen([string]$outFile) {
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$bounds = [System.Windows.Forms.Screen]::PrimaryScreen.Bounds
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$bmp = New-Object System.Drawing.Bitmap($bounds.Width, $bounds.Height)
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$g = [System.Drawing.Graphics]::FromImage($bmp)
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$g.CopyFromScreen($bounds.Location, [System.Drawing.Point]::Empty, $bounds.Size)
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$g.Dispose()
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Save-Bitmap $bmp $outFile
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}
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function Capture-Window([IntPtr]$hWnd, [string]$outFile) {
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[Win32]::ShowWindow($hWnd, 9) # SW_RESTORE
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[Win32]::SetForegroundWindow($hWnd)
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Start-Sleep -Milliseconds 600
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$rect = New-Object Win32+RECT
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[Win32]::GetWindowRect($hWnd, [ref]$rect)
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$w = [Math]::Max(100, $rect.Width)
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$h = [Math]::Max(100, $rect.Height)
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$bmp = New-Object System.Drawing.Bitmap($w, $h)
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$g = [System.Drawing.Graphics]::FromImage($bmp)
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$g.CopyFromScreen($rect.Left, $rect.Top, 0, 0, (New-Object System.Drawing.Size($w, $h)))
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$g.Dispose()
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Save-Bitmap $bmp $outFile
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}
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Write-Host "Launching $ExePath..."
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$proc = Start-Process -FilePath $ExePath -PassThru
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Start-Sleep -Seconds 6
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$hWnd = $proc.MainWindowHandle
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$retry = 0
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while ($hWnd -eq [IntPtr]::Zero -and $retry -lt 10) {
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Start-Sleep -Seconds 1
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$proc.Refresh()
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$hWnd = $proc.MainWindowHandle
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$retry++
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}
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Write-Host "Window Handle: $hWnd"
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Capture-FullScreen "$OutputDir/fullscreen.png"
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if ($hWnd -ne [IntPtr]::Zero) {
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Capture-Window $hWnd "$OutputDir/mainwindow.png"
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# Enumerate and capture all TabItems via UI Automation
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try {
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Add-Type -AssemblyName UIAutomationClient
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Add-Type -AssemblyName UIAutomationTypes
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$root = [System.Windows.Automation.AutomationElement]::FromHandle($hWnd)
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$tabCondition = New-Object System.Windows.Automation.PropertyCondition(
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[System.Windows.Automation.AutomationElement]::ControlTypeProperty,
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[System.Windows.Automation.ControlType]::Tab
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)
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$tabControls = $root.FindAll([System.Windows.Automation.TreeScope]::Descendants, $tabCondition)
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Write-Host "Found $($tabControls.Count) TabControl(s)"
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foreach ($tabCtrl in $tabControls) {
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$itemCondition = New-Object System.Windows.Automation.PropertyCondition(
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[System.Windows.Automation.AutomationElement]::ControlTypeProperty,
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[System.Windows.Automation.ControlType]::TabItem
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)
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$tabItems = $tabCtrl.FindAll([System.Windows.Automation.TreeScope]::Children, $itemCondition)
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Write-Host "Found $($tabItems.Count) TabItem(s)"
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foreach ($tabItem in $tabItems) {
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$tabName = $tabItem.Current.Name
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Write-Host "Selecting Tab: $tabName"
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try {
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$selectPattern = $tabItem.GetCurrentPattern([System.Windows.Automation.SelectionItemPattern]::Pattern)
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if ($selectPattern) {
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$selectPattern.Select()
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Start-Sleep -Milliseconds 600
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$safeName = $tabName -replace '[^a-zA-Z0-9_-]', '_'
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Capture-Window $hWnd "$OutputDir/tab_$safeName.png"
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}
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} catch {
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Write-Host "Failed to select tab $tabName: $_"
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}
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}
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}
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} catch {
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Write-Host "UI Automation inspection notice: $_"
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}
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}
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# Cleanly close application
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try {
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$proc.CloseMainWindow()
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Start-Sleep -Seconds 1
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if (-not $proc.HasExited) {
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Stop-Process -Id $proc.Id -Force
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}
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} catch {}
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Write-Host "Screenshot capture complete!"
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exit 0
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‎.github/workflows/build.yml‎

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name: Build
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on:
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push:
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branches: [ master ]
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pull_request:
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branches: [ master ]
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workflow_dispatch:
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jobs:
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asm:
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runs-on: ubuntu-latest
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steps:
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- uses: actions/checkout@v4
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- run: Asm/build.sh
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- name: Fail if committed .bin files are stale
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run: git diff --exit-code -- Asm
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build:
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needs: asm
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runs-on: windows-latest
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steps:
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- uses: actions/checkout@v4
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- uses: microsoft/setup-msbuild@v2
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# v4.5 targeting pack is not on the runner image; v4.8 runs the same on Windows 10+
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- run: msbuild "SciLors Mashed Trainer.csproj" /p:Configuration=Release /p:TargetFrameworkVersion=v4.8 /restore:false
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- name: Upload build artifact
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uses: actions/upload-artifact@v4
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with:
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name: MashedTrainer-Release
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path: bin/Release/
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- name: Launch App & Capture Screenshots
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shell: pwsh
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run: pwsh -File .github/scripts/screenshot.ps1 -ExePath "bin/Release/SciLors Mashed Trainer.exe" -OutputDir "screenshots"
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- name: Upload screenshots artifact
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uses: actions/upload-artifact@v4
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if: always()
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with:
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name: MashedTrainer-Screenshots
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path: screenshots/

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