Working C# code to safely eject removable storage (Windows 8.1, compiled 32-bit)
This is a class library of code stolen from a codeprojects page, and modified to fix a bug where it wasn't ejecting the drive it claimed to be ejecting. All the copyright headers in it are from the original author. I'm providing this code here since aparently the codeprojects page is dead (and the code posted there was broken anyways).
I'm running this code on Windows 8.1 Embedded Industrial (64-bit), but compiled as a 32-bit dll. I don't think it will work when compiled for 64-bit, and I don't plan on doing anything about that. If you can/do, feel free to send me a pull request. Preferably you can modify the code in such a way that it will work for both (#ifdefs, etc) so I don't have to figure out what you changed and go back and add them myself.
I'm distributing this software with NO WARRANTY and NO GUARANTEE of suitability for any purpose, etc, etc, yada, yada, don't sue me.
Usage example pulled from my code:
VolumeDeviceClass volumes = new VolumeDeviceClass(); foreach (Volume vol in volumes.Devices) { if (vol.LogicalDrive.Equals(eject_drive)) { eventLog.WriteEntry("Attempting to eject drive: " + cur_write_drive); vol.Eject(false); eventLog.WriteEntry("Done ejecting drive."); break; } }