Gets or sets the current tuning space.
Syntax
Visual Basic (Declaration) | |
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Public Property TuningSpace As Integer |
Visual Basic (Usage) | Copy Code |
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Dim instance As TVTuner
Dim value As Integer
instance.TuningSpace = value
value = instance.TuningSpace |
C# | |
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public int TuningSpace {get; set;} |
C++/CLI | |
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public:
property int TuningSpace {
int get();
void set ( int value);
} |
Property Value
A value representing the tuning space identifier.
Example
Visual Basic | Copy Code |
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Public _result As Boolean = False
Public _form As CaptureCtrlForm = New CaptureCtrlForm()
Public Sub TuningSpaceExample()
' reference the forms capture control and tv tuner
Dim capturectrl As CaptureCtrl = _form.CaptureCtrl
' input and output files
Dim inFile As String = Path.Combine(LEAD_VARS.MediaDir, "CaptureCtrl_Source.avi")
Dim outFile As String = 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") Is Nothing Then
Throw New Exception("No Analog video devices available!")
End If
capturectrl.VideoDevices("Analog").Selected = True
' get the TV Tuner device
Dim tvtuner As TVTuner = capturectrl.TVTuner
' Check if TV tuner is valid
If Not tvtuner Is Nothing Then
tvtuner.Mode = TunerModeType.TV
tvtuner.SetInputType(0, TunerInputType.Antenna)
Dim tuningSpace As Integer = 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
Dim max As Integer = tvtuner.ChannelMax
Dim min As Integer = tvtuner.ChannelMin
' loop through some channels and tune
Dim i As Integer = min
Do While i <= max
tvtuner.SetChannel(i, 0, 0)
tvtuner.AutoTune(i)
Dim signal As Boolean = (tvtuner.SignalPresent = TunerSignalStrength.SignalPresent)
i += 1
Loop
' store the tuning frequencies in the tuning space registy
tvtuner.StoreAutoTune()
' set the result
_result = True
End If
Catch e1 As Exception
_result = False
End Try
' 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.
Do While capturectrl.State = CaptureState.Running
Application.DoEvents()
Loop
End Sub
Public NotInheritable Class LEAD_VARS
Public Const MediaDir As String = "C:\Program Files (x86)\LEAD Technologies\LEADTOOLS 17\Media"
End Class |
C# | Copy Code |
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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:\Program Files (x86)\LEAD Technologies\LEADTOOLS 17\Media";
} |
Remarks
Requirements
Target Platforms: Microsoft .NET Framework 2.0, Windows 2000, Windows XP, Windows Server 2003 family, Windows Server 2008 family, Windows Vista, Windows 7
See Also