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));
}
}
public ChannelScanner(TVGraphs.BaseLocalTuner graph)
{
if (graph == null)
{
throw new ArgumentNullException("graph", "graph must not be null!");
}
_baseTuner = graph;
_virtualChannelTuner = _baseTuner as IVirtualChannelProvider;
_min = graph.MinChannel;
_max = graph.MaxChannel;
totalChannels = _max.PhysicalChannel - _min.PhysicalChannel;
Current = _min;
_timer = new System.Windows.Forms.Timer();
_timer.Tick += new EventHandler(Timer_Tick);
_timer.Interval = 1000;
}
