How to eject CD using WMI and Python?

Ahmet Alp Balkan picture Ahmet Alp Balkan · Jul 4, 2010 · Viewed 13.4k times · Source

Using Windows' WMI library, how can I eject CD rom mounted in a specific CD/DVD drive?

I am asking for sources from WMI docs or examples since I am using wmi.py library on Python.

It would be great if solution satisfies Windows computer newer than Windows 2000 and having multi CD-ROMs. (i.e. I have D: F: drives and both are CD-ROM drives. I might want to eject cd in F: specifically.)

Searched on the net but could not find anything relevant. The last solution must be having 3rd party binaries and executing from the shell.

Answer

Garett picture Garett · Jul 5, 2010

You can use ctypes.

import ctypes

ctypes.windll.WINMM.mciSendStringW(u"set cdaudio door open", None, 0, None)

UPDATE:

If you have more that one drive, you can use to open command to initialize a specific device before calling the function above. For example (not tested).

ctypes.windll.WINMM.mciSendStringW(u"open D: type cdaudio alias d_drive", None, 0, None)
ctypes.windll.WINMM.mciSendStringW(u"set d_drive door open", None, 0, None)

Also, see the documentation on how to check return values