Ruby Requires Chilkat v11.7.0+

Create a vCard (Contact) QR Code

See more QR Code Examples

Demonstrates a QR code that adds a contact to a phone when scanned. The text is a vCard, the standard format for contact details: lines between BEGIN:VCARD and END:VCARD, each ending with CRLF. A vCard is fairly long, so the symbol is larger than one holding a web address. Leave out the fields that are not needed to keep it small. Ruby

require 'chilkat'

success = false

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

#  The second argument of AppendLine is cktrue to end each line with CRLF.
sbCard = Chilkat::CkStringBuilder.new()
sbCard.AppendLine("BEGIN:VCARD",true)
sbCard.AppendLine("VERSION:3.0",true)
sbCard.AppendLine("N:Smith;Alex;;;",true)
sbCard.AppendLine("FN:Alex Smith",true)
sbCard.AppendLine("ORG:Example Company",true)
sbCard.AppendLine("TITLE:Sales Manager",true)
sbCard.AppendLine("TEL;TYPE=CELL:+1-555-0100",true)
sbCard.AppendLine("EMAIL:alex.smith@example.com",true)
sbCard.AppendLine("URL:https://www.example.com",true)
sbCard.AppendLine("END:VCARD",true)

json = Chilkat::CkJsonObject.new()
json.UpdateSb("payload.text",sbCard)
json.UpdateInt("render.moduleSize",6)
json.UpdateString("output.path","qa_output/qr_vcard.png")
json.UpdateBool("output.overwrite",true)
json.UpdateString("output.return","none")

fmt = Chilkat::CkFormats.new()
jsonOut = Chilkat::CkJsonObject.new()
success = fmt.QrCode("generate",json,jsonOut)
if (success == false)
    print fmt.lastErrorText() + "\n";
    exit
end

print "vCard length: " + sbCard.get_Length().to_s() + "\n";
print "QR version: " + jsonOut.IntOf("symbols[0].selectedEncoding.version").to_s() + "\n";
print "modules: " + jsonOut.IntOf("symbols[0].dimensions.modulesWide").to_s() + " x " + jsonOut.IntOf("symbols[0].dimensions.modulesHigh").to_s() + "\n";
print "image: " + jsonOut.IntOf("outputs[0].width").to_s() + " x " + jsonOut.IntOf("outputs[0].height").to_s() + " pixels" + "\n";

#  The image written to qa_output/qr_vcard.png:

#  

#  Sample output:

#  vCard length: 197
#  QR version: 10
#  modules: 57 x 57
#  image: 390 x 390 pixels