T3PP_PatchGUIlite

About

Windows WPF frontend for Touhou 3rd-party Patch (.t3pp) packages.

Get the full version: Here

Features

• Apply .t3pp patches to a directory or single file with hash readout.
• Generate .t3pp patches from old/new directories or files using T3ppNativelite_lib.
• View native log output to troubleshoot patching.
• Language toggle (Simplified Chinese default, English included).

Requirements

• Windows, .NET 8 SDK (desktop workload) to build; .NET 8 Desktop Runtime to run.
• Visual Studio 2022 (optional) for WPF; C++ workload only if building the native helper.
• Native helper: prebuilt T3ppNativelite_Debug_x64.dll / T3ppNativelite_Release_x64.dll live in PatchGUIlite/ or build them from T3ppNativeLite/.

Build

WPF app only (uses prebuilt native DLLs)

dotnet restore PatchGUIlite/PatchGUIlite.csproj
dotnet build   PatchGUIlite/PatchGUIlite.csproj -c Debug
dotnet build   PatchGUIlite/PatchGUIlite.csproj -c Release

Native helper (optional)

msbuild T3ppNativeLite/T3ppNativeLite.vcxproj /m /p:Configuration=Release /p:Platform=x64

Run

• Debug: PatchGUIlite/bin/Debug/net8.0-windows7.0/PatchGUIlite.exe
• Release: PatchGUIlite/bin/Release/net8.0-windows7.0/PatchGUIlite.exe

Keep alongside the executable:

• PatchGUIlite.dll, PatchGUIlite.deps.json, PatchGUIlite.runtimeconfig.json
• T3ppNativelite_Debug_x64.dll (Debug) or T3ppNativelite_Release_x64.dll (Release)
• lang/ (zh_CN.json, en_US.json)

Publish (self-contained)

dotnet publish PatchGUIlite/PatchGUIlite.csproj -c Release -r win-x64 --self-contained true /p:PublishSingleFile=true

Output: PatchGUIlite/bin/Release/net8.0-windows7.0/win-x64/publish/PatchGUIlite.exe

Usage

Apply a patch

1. Choose target mode (directory/file).
2. Pick target.
3. Pick .t3pp file.
4. Click Apply Patch; watch logs in the console area.

Generate a patch

1. Choose mode (file/directory).
2. Pick Original and Modified sources.
3. (Optional) keep Pack directory enabled to bundle outputs.
4. Click Generate Patch to produce a .t3pp.

Localization

Language files live in PatchGUIlite/lang/*.json. Add a new JSON and wire it into the selector in MainWindow.xaml / code-behind.

Notes

• Advantages over raw xdelta: bundles multiple files, embeds hashes/sizes, supports encrypted payloads, and can fall back to full-file data when delta is unsafe or unnecessary.