Windows 10: Ejecting Removable Disk

I'm writing a C program for Windows that deals specifically with lettered optical drives. From the dearth of information, I gather no easy solution exists for programmatically ejecting such a disk. But I'll ask. Does anyone know an API under C that can be used to eject an optical disk without disturbing the user, such as a disk mounted on drive e:?

Thank you for your attention.

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:)

 

Xbox one. Disk is stuck

Alright, I have tried to do the restart option, I have tried to use the little hole by the reconnect button but the disk is stuck. Any tips on how to remove the disk with out having to send it in? It still makes the eject noise like how the disk is normally
ejected.

 

problem show local disk on my computer from last localdisk connect and dont remove

when i connect my hdd external i must go to disk management and click change my drive letter and add drive letter and then my laptop open my hdd external. and after remove and eject my hard external still that local disk in my laptop show and don't clean
from my this pc.

when I click on this local disk I see error "location is not availabale" and I don't know how can remove this local disk from this pc after eject my h.d.d external.

I convert my laptop h.d.d to external h.d.d and there are two drive in my external h.d.d

 

Does this help?

https://support.microsoft.com/en-us/...000-windows-xp

 

Thank you very much!

My program deals solely with read-only optical disks -- no flashdrive, so I believe that a drastic shortening of your example will work. Here is the resulting code. It compiles cleanly but I'm not yet far along enough to test it. Will report later.

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Code: #include <windows.h> #include <winioctl.h> #include <tchar.h> #include <stdio.h> /* Eject optical disk */ void eject(drn) char *drn; /* drive ID letter (& */ { HANDLE hvol; DWORD byr; /* entry */ hvol = CreateFile(drn,GENERIC_READ, FILE_SHARE_READ | FILE_SHARE_WRITE,0,OPEN_EXISTING,0,0); if (hvol == INVALID_HANDLE_VALUE) { printf("Manually eject %s\n",drn); return; } DeviceIoControl(hvol,IOCTL_STORAGE_EJECT_MEDIA,0,0,0,0,&byr,0); CloseHandle(hvol); return; }[/quote]

 

Glad to hear that, but I can't take credit for the example (that goes to Microsoft) just for knowing where to look for one *Smile

 

Well, it didn't work. Amended the code to show the system reason. When "drn" contains, "e:", the actual optical drive ID, the system message is "Access denied." With anything else it reports can't find the file or the path. To "\\e:" it reported couldn't find the network drive. "e:" worked with an earlier call to GetVolumeInformation, so I conclude that must be the expected name format.

"Access denied" smacks of administrative privilege. So I ran the program under Task Manager, giving it administrative privilege. Same result: "Access denied."

Guess when running this program I'll have to keep a File Manager window open to click "eject." Sigh.

Code: #include <windows.h> #include <winioctl.h> #include <tchar.h> #include <stdio.h> /* Eject optical disk */ void eject(drn) char *drn; /* drive ID letter (& */ { HANDLE hvol; int dwfl; DWORD byr; char msbuf[256]; /* entry */ hvol = CreateFile(drn,GENERIC_READ, 0,0,OPEN_EXISTING,0,0); if (hvol == INVALID_HANDLE_VALUE) { byr = GetLastError(); FormatMessage(FORMAT_MESSAGE_FROM_SYSTEM,0,byr, MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),msbuf,256,0); puts(msbuf); printf("Manually eject %s\n",drn); return; } DeviceIoControl(hvol,IOCTL_STORAGE_EJECT_MEDIA,0,0,0,0,&byr,0); CloseHandle(hvol); return; }[/quote]

 

What kind of computer, Desktop or Notebook? Some Desktop keyboards or third-party keyboards have an Eject key for ODDs as do a number of Notebooks, especially those marked for multi-media use. If playing audio CDs in Windows Media Player there is an Eject choice on one of the Menu items [Ctrl+J], other such programs may have it. Don't find it on VLC.

 

There's an eject button in VLC's 'Media > Open disc...' - use Ctrl+D for that.

@rLsj, if you like, you could find out how theirs works by searching through VLC's source code, available here.
VLC media player source code - VideoLAN

Being Open Source and covered by the GPL you're free to use their code.

 

What sets you apart is: You know where to look and what to look for! *Thumbs