HResult Property (BarcodeReadSymbologyEventArgs)

Any error that may have occurred during the read operation.

Syntax

C#
Visual Basic
WinRT C#
Java
Objective-C
WinRT JavaScript
C++

public int HResult {get;}

'Declaration

Public ReadOnly Property HResult As Integer

'Usage

Dim instance As BarcodeReadSymbologyEventArgs
Dim value As Integer
 
value = instance.HResult

public int HResult {get;}

 get_HResult();

public:
property int HResult {
   int get();
}

Property Value

An int value that represent any error that may have occurred during the read operation. Otherwise (no errors occurred), it will be 0 (0 in Visual Basic).

Remarks

If an error occurs during the read operation and HResult contains a valid error code, then depending on the value of BarcodeReader.ErrorMode, the BarcodeReader object may throw this exception after the event handler returns. This is determined as follows:

Value	Action
BarcodeReaderErrorMode.Default	(Default behavior). The BarcodeReader will throw the error after the event handler returns. You must catch this exception in your application.
BarcodeReaderErrorMode.IgnoreAll	The error code is still in HResult, but the BarcodeReader will not throw the exception when the event handler returns. It is up to you to decide if and when to throw the exception and how to handle it. The C# and VB Barcode Main Demo shows the errors (if any) in a list after the read operation is completed.

Example

For an example, refer to BarcodeReader.ReadSymbology.

Requirements

Target Platforms

Reference

BarcodeReadSymbologyEventArgs Class
BarcodeReadSymbologyEventArgs Members
BarcodeReader.ReadSymbology