This could be the fix for the AB icon not appearing in the Windows 11 taskbar.

[bsteubing]

Checklist

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[bsteubing]

I got the code from this repo: https://gist.github.com/pradishb/ceef2664ad3c565e918a84d2ba1e9c7b

And here some ChatGPT explanation on this:

About your snippet:

import ctypes
ctypes.windll.shell32.SetCurrentProcessExplicitAppUserModelID("company.app.1")

---

🔹 What it does

• This calls a Windows Shell API function (SetCurrentProcessExplicitAppUserModelID) from shell32.dll using ctypes.
• It assigns a custom AppUserModelID to your Python process.

---

🔹 Why this matters

On Windows 7 and later, the taskbar groups windows by AppUserModelID:

• Normally, when you run a .py file, your app shares the same AppUserModelID as python.exe. That’s why the taskbar icon shows the default Python logo.
• By setting your own AppUserModelID (like "company.app.1"), you make Windows treat your running app as a separate application.

That allows:

• A custom taskbar icon (the one you set via QApplication.setWindowIcon() in Qt).
• Separate taskbar grouping (your app won’t be lumped under Python anymore).
• Pinning your app to the taskbar as if it were a standalone program.

---

🔹 In short

That one line of code tells Windows:
“Don’t treat me as python.exe — I’m my own application with my own identity.”

And that’s why you need it when running from source: without it, Windows will always use Python’s icon in the taskbar.