public VolumeEventArgs(DriveChars driveChar)
{
this.DriveChar = driveChar;
}
private static void ApplicationEvents_Idle(object sender, EventArgs e)
{
DriveChars logicalDrives = (DriveChars) Windows.GetLogicalDrives();
DriveChars readyDriveMask = GetReadyDriveMask(FDriveMask & logicalDrives);
bool flag = false;
int num = 1;
for (int i = 0; i < 0x1a; i++)
{
DriveChars driveChar = FDriveMask & (num << i);
if (driveChar != DriveChars.None)
{
if (((FReadyDriveMask & driveChar) == DriveChars.None) && ((readyDriveMask & driveChar) > DriveChars.None))
{
Filter.RaiseArrived(new VolumeEventArgs(driveChar));
flag = true;
}
if (((FReadyDriveMask & driveChar) > DriveChars.None) && ((readyDriveMask & driveChar) == DriveChars.None))
{
Filter.RaiseRemoved(new VolumeEventArgs(driveChar));
flag = true;
}
}
}
if (flag)
{
Filter.RaiseChanged(EventArgs.Empty);
}
FReadyDriveMask = readyDriveMask;
}
private void RaiseVolumeEvent(DriveChars chars, EventHandler<VolumeEventArgs> eventHandler)
{
if (eventHandler != null)
{
uint num = 1;
for (int i = 0; i < 0x1a; i++)
{
DriveChars driveChar = chars & ((DriveChars) (num << i));
if (driveChar != DriveChars.None)
{
VolumeEventArgs e = new VolumeEventArgs(driveChar);
eventHandler(null, e);
}
}
}
this.RaiseChanged(EventArgs.Empty);
}
protected override void WndProc(ref Message m)
{
int msg = m.Msg;
if (msg == 0x113)
{
if (m.WParam == TimerArriveId)
{
Windows.KillTimer(base.Handle, TimerArriveId);
if (this.ArrivingChars != DriveChars.None)
{
this.RaiseVolumeEvent(this.ArrivingChars, this.Arrived);
}
else
{
this.RaiseChanged(EventArgs.Empty);
}
this.ArrivingChars = DriveChars.None;
}
}
else
{
DriveChars none;
if (msg != 0x219)
{
if (m.Msg == this.MsgQueryCancelAutoPlay)
{
none = DriveChars.None;
if (OS.IsWinXP)
{
none = (DriveChars) (((int) 1) << ((int) m.WParam));
if ((this.ArrivingChars & none) > DriveChars.None)
{
goto Label_02E5;
}
this.ArrivingChars |= none;
}
if (Windows.SetTimer(base.Handle, TimerArriveId, 100, IntPtr.Zero) == IntPtr.Zero)
{
if (none != DriveChars.None)
{
this.RaiseArrived(new VolumeEventArgs(none));
}
this.RaiseChanged(EventArgs.Empty);
}
}
}
else
{
switch (((int) m.WParam))
{
case 0x8000:
none = this.GetVolumeDriveChars(m.LParam);
if (none != DriveChars.None)
{
this.ArrivingChars = none;
if (Windows.SetTimer(base.Handle, TimerArriveId, 0x76c, IntPtr.Zero) == IntPtr.Zero)
{
this.ArrivingChars = DriveChars.None;
this.RaiseVolumeEvent(none, this.Arrived);
}
}
goto Label_02E5;
case 0x8001:
if (DEV_BROADCAST_HDR.GetDeviceType(m.LParam) == DBT_DEVTYP.DBT_DEVTYP_HANDLE)
{
_DEV_BROADCAST_HANDLE _dev_broadcast_handle = (_DEV_BROADCAST_HANDLE) Marshal.PtrToStructure(m.LParam, typeof(_DEV_BROADCAST_HANDLE));
if (this.RemovingMap != null)
{
foreach (VolumeEvents.DeviceNotificationInfo info in this.RemovingMap.Values)
{
if (info.NotificationHandle.DangerousGetHandle() == _dev_broadcast_handle.dbch_hdevnotify)
{
CancelEventArgs e = new CancelEventArgs(false);
info.OnNotification(e);
if (e.Cancel)
{
m.Result = (IntPtr) 0x424d5144;
}
break;
}
}
}
}
goto Label_02E5;
case 0x8002:
case 0x8003:
goto Label_02E5;
case 0x8004:
none = this.GetVolumeDriveChars(m.LParam);
if (none != DriveChars.None)
{
this.RaiseVolumeEvent(none, this.Removed);
}
goto Label_02E5;
}
}
}
Label_02E5:
base.WndProc(ref m);
}
private static DriveChars GetReadyDriveMask(DriveChars driveMask)
{
DriveChars none = DriveChars.None;
int num = 1;
for (int i = 0; i < 0x1a; i++)
{
DriveChars chars2 = driveMask & (num << i);
if (chars2 != DriveChars.None)
{
VolumeInfo info = VolumeCache.Get(chars2.ToString() + @":\");
if ((info != null) && info.IsReady)
{
none |= chars2;
}
}
}
return none;
}
