Thread: C++ - Eject USB stick

Windows 10

Hello,

I've got a Sandisk Cruzer inserted in a USB hub.
With the code included I can eject & unmount the stick.
It does'nt show in Windows after I run the code, so I'm guessing it works.
However if I eject through Windows the USB stick ready light goes out, but
not with my code, its ejected but the ready light stays on.
Is there a way to turn the ready light off?

Regards

Code:

if (EjectVolume((TCHAR)data[0]))
{
    QMessageBox::information(this, tr("OK"),
                             ("USB device '" + dl + "' ejected.\n\n"));
    ui->info->clear();
}

Code:

BOOL EjectVolume(TCHAR cDriveLetter)
{
    HANDLE hVolume;

    BOOL fRemoveSafely = FALSE;
    BOOL fAutoEject = FALSE;

    // Open the volume.
    hVolume = OpenVolume(cDriveLetter);
    if (hVolume == INVALID_HANDLE_VALUE)
        return FALSE;

    // Lock and dismount the volume.
    if (LockVolume(hVolume) && DismountVolume(hVolume)) {
        fRemoveSafely = TRUE;

        // Set prevent removal to false and eject the volume.
        if (PreventRemovalOfVolume(hVolume, FALSE) &&
                AutoEjectVolume(hVolume))
            fAutoEject = TRUE;
    }

    // Close the volume so other processes can use the drive.
    if (!CloseVolume(hVolume))
        return FALSE;

    //qDebug() << fRemoveSafely << fAutoEject;
    if (fAutoEject)
        printf("Media in Drive %c has been ejected safely.\n",
               cDriveLetter);
    if (fRemoveSafely)
        printf("Media in Drive %c can be safely removed.\n",
               cDriveLetter);

    return TRUE;
}

Code:

Output:-
Media in Drive J has been ejected safely.
Media in Drive J can be safely removed.