PowerBuilder 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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integer li_rc
long li_Success
oleobject loo_Json
oleobject loo_Fmt
oleobject loo_JsonOut

li_Success = 0

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

loo_Json = create oleobject
li_rc = loo_Json.ConnectToNewObject("Chilkat.JsonObject")
if li_rc < 0 then
    destroy loo_Json
    MessageBox("Error","Connecting to COM object failed")
    return
end if
loo_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.
loo_Json.UpdateString("encoding.qr.errorCorrection","Q")
loo_Json.UpdateInt("render.moduleSize",8)

//  Say which network it is under the code.
loo_Json.UpdateBool("render.text.enabled",1)
loo_Json.UpdateString("render.text.value","Wi-Fi: Chilkat Guest")
loo_Json.UpdateInt("render.text.scale",2)

loo_Json.UpdateString("output.path","qa_output/qr_wifi.png")
loo_Json.UpdateBool("output.overwrite",1)
loo_Json.UpdateString("output.return","none")

loo_Fmt = create oleobject
li_rc = loo_Fmt.ConnectToNewObject("Chilkat.Formats")

loo_JsonOut = create oleobject
li_rc = loo_JsonOut.ConnectToNewObject("Chilkat.JsonObject")

li_Success = loo_Fmt.QrCode("generate",loo_Json,loo_JsonOut)
if li_Success = 0 then
    Write-Debug loo_Fmt.LastErrorText
    destroy loo_Json
    destroy loo_Fmt
    destroy loo_JsonOut
    return
end if

Write-Debug "file: " + loo_JsonOut.StringOf("outputs[0].path")
Write-Debug "QR version: " + string(loo_JsonOut.IntOf("symbols[0].selectedEncoding.version"))
Write-Debug "image: " + string(loo_JsonOut.IntOf("outputs[0].width")) + " x " + string(loo_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


destroy loo_Json
destroy loo_Fmt
destroy loo_JsonOut