VintaSoft Twain .NET SDK v10.2
Vintasoft.WpfTwain Namespace / Device Class / LightPath Property
Example




In This Topic
    LightPath Property (Device)
    In This Topic
    Determines that the image was captured transmissively or reflectively.
    Syntax
    'Declaration
     
    Public Property LightPath As LightPath
    'Usage
     
    Dim instance As Device
    Dim value As LightPath
     
    instance.LightPath = value
     
    value = instance.LightPath
    public LightPath LightPath {get; set;}
    public: __property LightPath get_LightPath();
    public: __property void set_LightPath( 
       LightPath value
    );
    public:
    property LightPath LightPath {
       LightPath get();
       void set (    LightPath value);
    }
    Exceptions
    ExceptionDescription
    Thrown if device is in wrong state.
    Thrown if device does not support capability.
    Thrown if the .NET debugger is used and the function evaluation requires all threads to run.
    Remarks
    Call this property only when device is opened (State == DeviceState.Opened).

    Supported pixel types can be received by the GetSupportedLightPaths method.
    Example
    This example shows how to scan negatives using a scanner.
    Public Sub ScanColorImageWithLightPath(ByVal device As Device)
        device.ShowUI = False
        device.DisableAfterAcquire = True
                
        device.Open()
        device.PixelType = PixelType.RGB
        device.UnitOfMeasure = UnitOfMeasure.Inches
        device.Resolution = New Resolution(300.0F, 300.0F)
        device.LightPath = LightPath.Transmissive
                
        device.Acquire()
    End Sub
    public void ScanColorImageWithLightPath(Device device)
    {
        device.ShowUI = false;
        device.DisableAfterAcquire = true;
                
        device.Open();
        device.PixelType = PixelType.RGB;
        device.UnitOfMeasure = UnitOfMeasure.Inches;
        device.Resolution = new Resolution(300f, 300f);
        device.LightPath = LightPath.Transmissive;
                
        device.Acquire();
    }
    Requirements

    Target Platforms: Windows 8, Windows 7, Windows Vista, Windows XP, Windows Server 2012, Windows Server 2008, Windows Server 2003

    See Also