Gets the index of the video capture input that was last selected in the video cross bar property page.
Syntax
Visual Basic (Declaration) | |
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Public ReadOnly Property NearestSelection As Integer |
Visual Basic (Usage) | Copy Code |
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Dim instance As CaptureInputs
Dim value As Integer
value = instance.NearestSelection |
C# | |
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public int NearestSelection {get;} |
C++/CLI | |
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public:
property int NearestSelection {
int get();
} |
Property Value
The zero-based index of the nearest selected item; or -1 if no item is selected.
Example
Visual Basic | Copy Code |
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Public _result As Boolean = False
Public _form As CaptureCtrlForm = New CaptureCtrlForm()
Public Sub NearestSelectionExample()
' reference the capture control and it's video inputs
Dim capturectrl As CaptureCtrl = _form.CaptureCtrl
' set a video device first, you should use your video device name here
If capturectrl.VideoDevices("Analog") Is Nothing Then
Throw New Exception("No Analog video tuner device available")
End If
capturectrl.VideoDevices("Analog").Selected = True
' set a video device first, you should use your video device name here
If capturectrl.AudioDevices("Analog") Is Nothing Then
Throw New Exception("No matching Analog audio device available")
End If
capturectrl.AudioDevices("Analog").Selected = True
Try
' get the video inputs collection
Dim videoInputs As CaptureInputs = capturectrl.VideoInputs
' select the video tuner input
videoInputs("Video Tuner").Selected = True
' select the nearest selection to the last selection
videoInputs.Selection = videoInputs.NearestSelection
' set the result to what we expect
_result = True
Catch e1 As Exception
_result = False
End Try
End Sub |
C# | Copy Code |
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public bool _result = false;
public CaptureCtrlForm _form = new CaptureCtrlForm();
public void NearestSelectionExample()
{
// reference the capture control and it's video inputs
CaptureCtrl capturectrl = _form.CaptureCtrl;
// set a video device first, you should use your video device name here
if (capturectrl.VideoDevices["Analog"] == null)
throw new Exception("No Analog video tuner device available");
capturectrl.VideoDevices["Analog"].Selected = true;
// set a video device first, you should use your video device name here
if (capturectrl.AudioDevices["Analog"] == null)
throw new Exception("No matching Analog audio device available");
capturectrl.AudioDevices["Analog"].Selected = true;
try
{
// get the video inputs collection
CaptureInputs videoInputs = capturectrl.VideoInputs;
// select the video tuner input
videoInputs["Video Tuner"].Selected = true;
// select the nearest selection to the last selection
videoInputs.Selection = videoInputs.NearestSelection;
// set the result to what we expect
_result = true;
}
catch (Exception)
{
_result = false;
}
} |
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