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59 lines
2.8 KiB
Markdown
59 lines
2.8 KiB
Markdown
# CLAUDE.md
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This file provides guidance to Claude Code (claude.ai/code) when working with code in this repository.
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## Purpose
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Windows utility that forces a game window into the foreground after launch. Works with **Steam** (automatic process name extraction from `%command%`) and **Sunshine/Moonlight** (manual `--process` argument).
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## Architecture
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- **`launch.vbs`** — VBScript entry point called from Steam launch options. Extracts the game executable name from `%command%` via `FileSystemObject.GetBaseName()`, passes it as `--process` to `foreground_fix.py`, then launches the actual game. No console window is created.
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- **`foreground_fix.py`** — Python script that polls for the game process, waits for its main window (filtered by size to skip splash screens, preferring windows with titles over titleless overlays), waits for the window size to stabilize, then brings the game window to foreground using Win32 API workarounds (`AttachThreadInput` + `Alt` key simulation to bypass `SetForegroundWindow` restrictions). Monitors for window changes (splash → main window) and re-focuses automatically. Retries up to 15 times. Runtime logging goes to `foreground_fix.log`.
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## Setup
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```
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py -m venv .venv
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.venv\Scripts\activate
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pip install psutil pywin32
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```
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## Steam Launch Options
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```
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wscript "C:\Projekte\Steam_backgroud_fix\launch.vbs" %command%
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```
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Same launch option works for all Steam games — process name is extracted automatically.
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## Sunshine / Moonlight
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Use as command preparation in Sunshine (full venv path required):
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```
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"C:\Projekte\Steam_backgroud_fix\.venv\Scripts\pythonw.exe" "C:\Projekte\Steam_backgroud_fix\foreground_fix.py" --process "ProcessName"
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```
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## Running Manually (for testing)
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```
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.venv\Scripts\python foreground_fix.py --process CrimsonDesert
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.venv\Scripts\python foreground_fix.py --process CrimsonDesert --timeout 180
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```
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`--process` is required (no default). Runtime logging goes to `foreground_fix.log`. When started with `pythonw.exe`, no console window is shown; manual runs with `python.exe` can still print argument or interpreter errors to the console.
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## Key Constants in foreground_fix.py
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- `MIN_WINDOW_WIDTH = 800` — distinguishes game window from splash screen
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- `FOCUS_RETRIES = 15` / `FOCUS_RETRY_DELAY = 2.0` — retry parameters for foreground focus
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## Windows API Notes
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- `SetForegroundWindow` is restricted by Windows unless the calling process owns the foreground. Workaround: simulate an `Alt` keypress + `AttachThreadInput` to the foreground thread.
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- Alt key release is in a `finally` block to prevent it from staying pressed on errors.
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- `pythonw.exe` (not `python.exe`) is required for invisible background execution.
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- VBScript `WshShell.Run` with window style `0` ensures no console window appears.
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- Window selection prefers titled windows over titleless ones (prevents overlay issues like in Wuthering Waves).
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