VolumeLabel

unsafe string System.IO.DriveInfo.VolumeLabel

getset

Definition at line 104 of file DriveInfo.cs.

    {
        get
        {
            char* ptr = stackalloc char[261];
            using (System.IO.DisableMediaInsertionPrompt.Create())
            {
                if (!global::Interop.Kernel32.GetVolumeInformation(Name, ptr, 261, null, null, out var _, null, 0))
                {
                    throw Error.GetExceptionForLastWin32DriveError(Name);
                }
            }
            return new string(ptr);
        }
        [SupportedOSPlatform("windows")]
        [param: AllowNull]
        set
        {
            uint lpOldMode;
            bool flag = global::Interop.Kernel32.SetThreadErrorMode(1u, out lpOldMode);
            try
            {
                if (!global::Interop.Kernel32.SetVolumeLabel(Name, value))
                {
                    int lastPInvokeError = Marshal.GetLastPInvokeError();
                    if (lastPInvokeError == 5)
                    {
                        throw new UnauthorizedAccessException(System.SR.InvalidOperation_SetVolumeLabelFailed);
                    }
                    throw Error.GetExceptionForWin32DriveError(lastPInvokeError, Name);
                }
            }
            finally
            {
                if (flag)
                {
                    global::Interop.Kernel32.SetThreadErrorMode(lpOldMode, out var _);
                }
            }
        }
    }