private void unregisterEventListener(BrailleDisNet BrailleDis)
{
if (BrailleDis != null)
{
BrailleDis.ErrorOccured -= new BrailleDisNet.ErrorOccuredHandler(BrailleDis_ErrorOccured);
BrailleDis.inputChangedEvent -= new BrailleDisNet.InputChangedEventHandler(BrailleDis_inputChangedEvent);
BrailleDis.keyStateChangedEvent -= new BrailleDisNet.KeyStateChangedEventHandler(BrailleDis_keyStateChangedEvent);
BrailleDis.pinStateChangedEvent -= new BrailleDisNet.PinStateChangeEventHandler(BrailleDis_pinStateChangedEvent);
BrailleDis.touchValuesChangedEvent -= new BrailleDisNet.TouchValuesChangedEventHandler(BrailleDis_touchValuesChangedEvent);
BrailleDis.NewDeviceAttached -= new Action <BrailleDisNet, DeviceInformation_T>(BrailleDis_NewDeviceAttached);
}
}
private void closeBrailleDis(BrailleDisNet _bdn)
{
if (_bdn != null)
{
unregisterEventListener(_bdn);
try
{
_bdn.StopTouchEvaluation();
_bdn.Close();
}
catch (Exception)
{ }
}
}
/// <summary>
/// Tries to create and connect the BrailleDis.
/// Should be started in separate thread because this takes some time.
/// </summary>
private void tryConnectBrailleDis()
{
int trys = 0;
const int max = 30;
if (BrailleDis == null)
{
try
{
BrailleDis = new BrailleDisNet();
}
catch
{
BrailleDis = null;
return;
}
}
while (_run && (BrailleDis == null || !BrailleDis.DeviceIsInitialized || BrailleDis.UsedDevice == null))
{
if (!_run)
{
return;
}
if (trys++ >= max || BrailleDis == null)
{
BrailleDis = null;
return;
}
if (BrailleDis != null && BrailleDis.UsedDevice != null)
{
BrailleDis.UsedDevice.OpenDevice();
}
}
Connect();
Synchronize(LastMatrix);
Thread.CurrentThread.Abort();
}
void BrailleDis_NewDeviceAttached(BrailleDisNet arg1, DeviceInformation_T arg2)
{
Thread.Sleep(200);
fireInitialized(new BrailleIO_Initialized_EventArgs(Device));
System.Diagnostics.Debug.WriteLine("new Device attached");
}
