private void channelScanWorker_DoWork(object sender, DoWorkEventArgs e)
{
int numChannels = this.MaxChannel.PhysicalChannel - this.MinChannel.PhysicalChannel;
IVirtualChannelProvider _virtualChannelTuner = this as IVirtualChannelProvider;
for (int i = this.MinChannel.PhysicalChannel; i <= this.MaxChannel.PhysicalChannel; i++)
{
if (CheckScanCanceled(e))
{
return;
}
this.SetChannel(new Channel(i));
Thread.Sleep(500);
if (CheckScanCanceled(e))
{
return;
}
int str = this.GetSignalStrength();
AppLogger.Message("Try channel : " + i + " str=" + str);
if (str != 0)
{
Channel actual = this.GetChannel();
if (actual.MajorChannel != -1)
{
if (_virtualChannelTuner != null)
{
List <Channel> virtualChannels = _virtualChannelTuner.GetVirtualChannels();
foreach (Channel ch in virtualChannels)
{
if ((ch.MajorChannel == actual.MajorChannel) && (ch.MinorChannel > 0))
{
ch.CarrierFrequency = actual.CarrierFrequency;
_foundChannels.Add(ch);
}
}
}
else
{
_foundChannels.Add(actual);
}
}
}
if (CheckScanCanceled(e))
{
return;
}
channelScanWorker.ReportProgress((int)(((double)(i - this.MinChannel.PhysicalChannel) / (double)numChannels) * 100));
}
}
private void Timer_Tick(object sender, EventArgs e)
{
_timer.Enabled = false;
int str = _baseTuner.GetSignalStrength();
Debug.WriteLine("Channel " + _current.ToString() + " Str: " + str.ToString());
if (str != 0)
{
Channel actual = _baseTuner.TryChannel;
if (actual != null)
{
Debug.WriteLine("actually found channel: " + actual.ToDebugString());
if (_virtualChannelTuner != null)
{
List <Channel> virtualChannels = _virtualChannelTuner.GetVirtualChannels();
foreach (Channel ch in virtualChannels)
{
_channelList.Add(ch);
}
}
else
{
_channelList.Add(actual);
}
_channelList.DumpToDebug();
}
}
if (Current.Equals(_max))
{
Stop();
_baseTuner.KnownChannels = this.FoundChannels;
if (_baseTuner.KnownChannels.Count > 0)
{
_baseTuner.Channel = _baseTuner.KnownChannels.Items[0];
}
if (ChannelScanComplete != null)
{
ChannelScanComplete.Invoke(this, new ChannelScanCompleteEventArgs(_channelList.Count));
}
}
else
{
Current = new Channel(Current.PhysicalChannel + 1);
_baseTuner.TryChannel = Current;
curChannelCount++;
if (ChannelScanProgressUpdate != null)
{
this.ChannelScanProgress = (int)(((double)curChannelCount / (double)totalChannels) * 100.0);
ChannelScanProgressUpdate.Invoke(this, new EventArgs());
}
if (!_channelScanCancelled)
{
_timer.Enabled = true;
}
}
}
