Python Requires Chilkat v11.7.0+

Create a Wi-Fi QR Code

Demonstrates a QR code that joins a phone to a Wi-Fi network when scanned. A QR code only holds text. Phones recognize text of the form WIFI:T:;S:;P:;; and offer to join the network. T is WPA (also used for WPA2 and WPA3), WEP, or nopass for an open network, and H:true can be added for a hidden network. In the name and the password, the characters backslash, semicolon, comma, colon and double quote must each be preceded by a backslash.

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Chilkat2-Python

import sys
import chilkat2

success = False

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

json = chilkat2.JsonObject()
json.UpdateString("payload.text","WIFI:T:WPA;S:Chilkat Guest;P:correct-horse-battery-staple;;")

# Level Q, so that the code still scans when it is printed small or gets worn.
json.UpdateString("encoding.qr.errorCorrection","Q")
json.UpdateInt("render.moduleSize",8)

# Say which network it is under the code.
json.UpdateBool("render.text.enabled",True)
json.UpdateString("render.text.value","Wi-Fi: Chilkat Guest")
json.UpdateInt("render.text.scale",2)

json.UpdateString("output.path","qa_output/qr_wifi.png")
json.UpdateBool("output.overwrite",True)
json.UpdateString("output.return","none")

fmt = chilkat2.Formats()
jsonOut = chilkat2.JsonObject()
success = fmt.QrCode("generate",json,jsonOut)
if (success == False):
    print(fmt.LastErrorText)
    sys.exit()

print("file: " + jsonOut.StringOf("outputs[0].path"))
print("QR version: " + str(jsonOut.IntOf("symbols[0].selectedEncoding.version")))
print("image: " + str(jsonOut.IntOf("outputs[0].width")) + " x " + str(jsonOut.IntOf("outputs[0].height")) + " pixels")

# The image written to qa_output/qr_wifi.png:

# 

# Sample output:

# file: qa_output/qr_wifi.png
# QR version: 5
# image: 360 x 374 pixels