QT with Raspberry (MRAA library)

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I am using Raspberry Pi, I have tried to write a c++ programming in QT creator. I have installed MRAA library. Before I have used wiring Pi library. Now I don't know how to change. So please solve this issue.

    pinMode(T_C,OUTPUT);           
    pinMode(E_C,INPUT);
    pullUpDnControl(E_C,PUD_DOWN);

jsulm

@Geeva Which issue?
Could you please explain what the issue is?

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Thanks for your reply. For example I have used wiringPi Library for Raspberry pi developed code using QT creator IDE. Now I want to cross compile that into UP Board. Is it possible to use wiring Pi ? Because if I want to use mraa I want to modify everything. So for cross compilation how to proceed ?