In This Topic ▼

Mode Property

Summary

Gets or sets the current mode of a multifunction tuner.

Syntax

C++/CLI

public TunerModeType Mode { get; set; }

public: 
property TunerModeType Mode { 
   TunerModeType get(); 
   void set (    TunerModeType ); 
}

Property Value

A TunerModeType enumeration value indicating the current mode. To determine the modes available on the installed tuner, use the AvailableModes property. For more detailed information, refer to the Microsoft documentation for IAMTuner.get_Mode.

Remarks

Gets or sets the current mode of a multifunction tuner.

Example

using Leadtools; 
using Leadtools.MediaFoundation; 
using LeadtoolsMediaFoundationExamples.Fixtures; 
 
 
public bool _result = false; 
public CaptureCtrlForm _form = new CaptureCtrlForm(); 
 
public void TuningSpaceExample() 
{ 
   // reference the forms capture control and tv tuner 
   CaptureCtrl capturectrl = _form.CaptureCtrl; 
 
   // input and output files 
   string inFile = Path.Combine(LEAD_VARS.MediaDir, "CaptureCtrl_Source.avi"); 
   string outFile = Path.Combine(LEAD_VARS.MediaDir, "TVTuner_TuningSpaceExample.avi"); 
 
   try 
   { 
      // select the first device with analog in it's name 
      // Replace "Analog" with your video capture device name 
      if (capturectrl.VideoDevices["Analog"] == null) 
         throw new Exception("No Analog video devices available!"); 
 
      capturectrl.VideoDevices["Analog"].Selected = true; 
 
      // get the TV Tuner device 
      TVTuner tvtuner = capturectrl.TVTuner; 
 
      // Check if TV tuner is valid 
      if (tvtuner != null) 
      { 
         tvtuner.Mode = TunerModeType.TV; 
         tvtuner.SetInputType(0, TunerInputType.Antenna); 
         int tuningSpace = tvtuner.TuningSpace; 
 
         // set the current tuning space to 9999  
         // tuning spaces are user defined and allow you to override  
         // channel and frequency mappings for the given input type (Cable or Antenna) 
         tvtuner.TuningSpace = 9999; 
         tvtuner.CountryCode = 1; 
 
         int max = tvtuner.ChannelMax; 
         int min = tvtuner.ChannelMin; 
 
         // loop through some channels and tune 
         for (int i = min; i <= max; i++) 
         { 
            tvtuner.SetChannel(i, 0, 0); 
            tvtuner.AutoTune(i); 
            bool signal = (tvtuner.SignalPresent == TunerSignalStrength.SignalPresent); 
         } 
 
         // store the tuning frequencies in the tuning space registy 
         tvtuner.StoreAutoTune(); 
 
         // set the result 
         _result = true; 
      } 
   } 
   catch (Exception) 
   { 
      _result = false; 
   } 
 
   // we'll loop on the state and pump messages for this example. 
   // but you should not need to if running from a Windows Forms application. 
   while (capturectrl.State == CaptureState.Running) 
      Application.DoEvents(); 
} 
 
static class LEAD_VARS 
{ 
   public const string MediaDir = @"C:\LEADTOOLS23\Media"; 
}

Requirements

Target Platforms

Reference

TVTuner Class

TVTuner Members

Download our FREE evaluation

Help Version 23.0.2024.7.13

Leadtools.MediaFoundation Assembly

Introduction

Getting Started

Namespaces

Leadtools.MediaFoundation Namespace

Leadtools.MediaFoundation.Common Namespace

Assemblies