LEADTOOLS Barcode (Leadtools.Barcode assembly)
LEAD Technologies, Inc

EnableDoublePass Property (QRBarcodeReadOptions)








Gets or sets a value indicating whether to use double pass when reading QR symbols. .NET support WinRT support Silverlight support
Syntax
[DefaultValueAttribute()]
[DisplayNameAttribute("Enable double pass")]
[CategoryAttribute("			Options")]
[DescriptionAttribute("If no barcodes of this symbology is found, auto pre-process the image and then re-scan")]
public bool EnableDoublePass {get; set;}
'Declaration
 
<DefaultValueAttribute()>
<DisplayNameAttribute("Enable double pass")>
<CategoryAttribute("			Options")>
<DescriptionAttribute("If no barcodes of this symbology is found, auto pre-process the image and then re-scan")>
Public Property EnableDoublePass As Boolean
'Usage
 
Dim instance As QRBarcodeReadOptions
Dim value As Boolean
 
instance.EnableDoublePass = value
 
value = instance.EnableDoublePass
[DefaultValueAttribute()]
[DisplayNameAttribute("Enable double pass")]
[CategoryAttribute("			Options")]
[DescriptionAttribute("If no barcodes of this symbology is found, auto pre-process the image and then re-scan")]
public bool EnableDoublePass {get; set;}
ObjectiveC Syntax
Java Syntax
DefaultValueAttribute()
DisplayNameAttribute("Enable double pass")
CategoryAttribute("			Options")
DescriptionAttribute("If no barcodes of this symbology is found, auto pre-process the image and then re-scan")
 get_EnableDoublePass();
set_EnableDoublePass(value);
[DefaultValueAttribute()]
[DisplayNameAttribute("Enable double pass")]
[CategoryAttribute("			Options")]
[DescriptionAttribute("If no barcodes of this symbology is found, auto pre-process the image and then re-scan")]
public:
property bool EnableDoublePass {
   bool get();
   void set (    bool value);
}

Property Value

true to use double pass when reading QR symbols. Otherwise, false. The default value is false.
Remarks

When reading 2D barcodes, LEADTOOLS can perform internal auto preprocessing on the image and try again if the engine cannot detect the barcode required. This may take extra processing and increase the barcode detection time. Hence, it is not recommended to always have it enabled, except in certain situations:

Example

For an example, refer to QRBarcodeReadOptions.

Requirements

Target Platforms: Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

See Also

Reference

QRBarcodeReadOptions Class
QRBarcodeReadOptions Members

 

 


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Leadtools.Barcode requires a Barcode Module license and unlock key. For more information, refer to: LEADTOOLS Toolkit Features