Handling of Surrogate Pair Characters

m.kawakami

Can I receive a file name with surrogate pair characters in the argument and open the file correctly with QFile, for example?
I'm having trouble with the surrogate pair characters being garbled as shown below.

"𩸽.txt" -> "??.txt"

// Run example.   test.exe 𩸽.txt
int main(int argc, char* argv[])
{
    QFile file(argv[1]);
    if (!file.open(QIODevice::WriteOnly)) {
        // open failed.
    }
}

The following is environmental information.

Windows 10
Qt 5.15.5

Christian Ehrlicher

You must not simply convert a char* to a QString - how should QString should know the enconding about the char*?
Use a Q(Core)Application and read the arguments from there - then they should be properly encoded.

m.kawakami

Thank you for your response.
You've been very helpful.