Install on Windows¶

On Windows the library drives your native MC9 directly. There is no sandbox, so work on copies of your circuits (the library always does: mc9.open() copies the file into its work folder).

Status

The Windows backend is implemented with the Win32 API only (ctypes + Pillow) and is tested by running Windows Python under Wine against MC9, which exercises the same API calls. It has not yet had broad testing on real Windows machines - please report what you see (issue template).

Steps¶

Install Python 3.10+ and MC9.
Install mc9py into a virtual environment (PowerShell):
```
py -m venv $HOME\mc9-env
& $HOME\mc9-env\Scripts\Activate.ps1          # repeat this in every new PowerShell window
pip install mc9py
```
3. Set your display scaling to 100 % (Settings -> Display) - the screenshot regions assume it. 4. mc9 doctor - finds mc9.exe (usual install folders and PATH). If it is somewhere else:

import mc9
mc9.config.mc9_exe = r"D:\Tools\MC9\mc9.exe"

What to expect¶

MC9 opens as a normal window, is moved to the top-left corner and resized to 1900x980. Do not use the mouse or keyboard while a script runs - the library sends real input events.
Screens smaller than 1900x980 cannot show the whole window; use a larger monitor or a virtual display.
The Windows driver is language independent: it opens analyses with MC9's keyboard accelerators (Alt+1 transient, Alt+2 AC, ...), runs with F2, and finds dialog buttons by class and order instead of by pixel position.

Work folder¶

%LOCALAPPDATA%\mc9\exchange holds circuits, numeric output and screenshots (override with the MC9_HOME environment variable).