VB.NET Requires Chilkat v11.7.0+

Generate a QR Code as SVG

See more QR Code Examples

Demonstrates SVG output. An SVG is a vector image, so it stays sharp at any size, which suits print and responsive web pages. Setting output.format to svg and output.return to text returns the SVG document as a string in outputs[0].text. The SVG can also be written straight to a file with output.path, the same as a PNG. VB.NET

Dim success As Boolean = False

'  This example requires the Chilkat API to have been previously unlocked.
'  See Global Unlock Sample for sample code.

Dim json As New Chilkat.JsonObject
json.UpdateString("payload.text","https://www.chilkatsoft.com/")
json.UpdateString("output.format","svg")

'  An SVG is text, so it can be returned as text rather than as base64.
json.UpdateString("output.return","text")

Dim fmt As New Chilkat.Formats
Dim jsonOut As New Chilkat.JsonObject
success = fmt.QrCode("generate",json,jsonOut)
If (success = False) Then
    Debug.WriteLine(fmt.LastErrorText)
    Exit Sub
End If


Dim sbSvg As New Chilkat.StringBuilder
jsonOut.StringOfSb("outputs[0].text",sbSvg)

Debug.WriteLine("MIME type: " & jsonOut.StringOf("outputs[0].mimeType"))
Debug.WriteLine("size: " & jsonOut.IntOf("outputs[0].width") & " x " & jsonOut.IntOf("outputs[0].height") & " " & jsonOut.StringOf("outputs[0].units"))
Debug.WriteLine("SVG length: " & sbSvg.Length & " characters")

'  The SVG is a complete document that can be saved, or placed inline in an HTML page.
success = sbSvg.WriteFile("qa_output/qr_chilkat.svg","utf-8",False)
If (success = False) Then
    Debug.WriteLine(sbSvg.LastErrorText)
    Exit Sub
End If


'  The SVG:

'  

'  Sample output:

'  MIME type: image/svg+xml
'  size: 148 x 148 px
'  SVG length: 12500 characters