public void StartExposure(short iso, double durationSeconds, double minDurationForBulbMode)
{
if (IsConnected == false)
{
throw new ASCOM.NotConnectedException();
}
if (exposureInProgress)
{
throw new ASCOM.InvalidOperationException("Exposure already in progress");
}
_exposureBackgroundWorker = new BackgroundWorker()
{
WorkerReportsProgress = false, WorkerSupportsCancellation = true
};
_exposureBackgroundWorker.DoWork += new DoWorkEventHandler(((sender, args) =>
{
SetShutterSpeed(durationSeconds, minDurationForBulbMode);
SetISO(iso);
SyncSaveFolder();
if (args.Cancel == false)
{
try
{
BeginExposure();
if (durationSeconds >= minDurationForBulbMode)
{
Thread.Sleep((int)(durationSeconds * 1000));
}
if (args.Cancel == false)
{
EndExposure(durationSeconds >= minDurationForBulbMode); //we dont call EndExposure in case if background worker cancelled as we assume it has been already ended
_fileSystemWatcher.EnableRaisingEvents = true;
}
}
finally
{
lock (_lock)
{
exposureInProgress = false;
}
}
}
}));
_exposureBackgroundWorker.RunWorkerCompleted += new RunWorkerCompletedEventHandler(((sender, args) =>
{
if (args.Cancelled == false)
{
ExposureCompleted?.Invoke(this, new ExposureCompletedEventArgs());
}
}));
_exposureBackgroundWorker.RunWorkerAsync();
}
public void StopExposure()
{
EndExposure(true);
_fileSystemWatcher.EnableRaisingEvents = true;
if (_exposureBackgroundWorker != null && _exposureBackgroundWorker.IsBusy)
{
_exposureBackgroundWorker.CancelAsync();
}
ExposureStopped?.Invoke(this, new ExposureStoppedEventArgs());
ExposureCompleted?.Invoke(this, new ExposureCompletedEventArgs());
}
private void _remoteApp_ExposureCompleted(object sender, ExposureCompletedEventArgs e)
{
ExposureCompleted?.Invoke(this, e);
}