How to generate QR code in Cpp ?

[Saikumar]

I would like to generate QR code by taking string input from the user. Can anyone suggest reference for the QR code and also how to dowload pods.pri file.

[mrjj]

Hi
you could use an existing library
https://github.com/fukuchi/libqrencode

• how to dowload pods.pri file.

I have zero idea what pods.pri files are :)

[Saikumar]

@mrjj
I have downloaded libqrencode file already. But getting errors.
[0_1514451884337_mainwindow.cpp](Uploading 100%)
Errors screenshot :

[Saikumar]

@Saikumar
My Program :

[mrjj]

Hi
You both have Mainwindow AND QWidget in constructor that seems odd.?

[Saikumar]

@mrjj
I have removed that line then also I am getting errors...
Mainly on data variable name

[mrjj]

@Saikumar
what data variable ?
the
data.toStdString() one ?

should just be a member
QString data of mainwindow it seems.

[Saikumar]

@mrjj
It's taking it as QWidgetData private variable that's why it is giving mainwindow doesn't have any data variable name. How to resolve this problem. Getting conflict on the data . It's saying data is private variable. But when assigning getting error Qstring can't be convert to QWidgetData type on this line this->data=data .

[mrjj]

@Saikumar
Hi
I think there is a name conflict between a string name data and something else
please rename your data string.

[Saikumar]

@mrjj
Hii,
I have created data variable in my program.
Its working now.

Thank you.