QT how to use std::string in a QLineEdit

Question

Dear All,

I have the following problem. I am trying to integrate a large code written by me with a QT interface. Some of my functions return std::string; I did not succeed in making setText accept them (other functions returning char do not give me problems).

What should I do? Thanks!

Giuseppe

Answer 1

There's no constructor for QString that takes a std::string. Convert it first to a C string using std::string::c_str().

Answer 2

Try this:

std::string a = "aaa";
lineEdit->setText(QString::fromStdString(a));

You will need Qt with STL support.