Access folder network in Windows

[Gianluca86]

Hello everyone,
I would like access to a folder (copy in the files or read) that resides on a computer connected to the local network.
To read the folder I use the normal command:

if(!QDir(QDir::toNativeSeparators("//192.168.0.20/FOLDER")).exists())
{/
    qDebug()<<"Not Exist";
}

But since I have to enter username and password, I always find that the folder doesn't exist.
How do I have to enter this data? I tried to use QNetworkManager, but it didn't work (maybe I did not understand how to implement it correctly)
it's possible to do it? Are there examples?
thank you

Edit:
I'm using QT 5.7 on Windows

[jsulm]

@Gianluca86 The easiest way is actually to map that network share to a drive letter and access it then like any other path.

[sierdzio]

Qt does not support samba natively. See some hints here, here and here

[the_]

@Gianluca86

If it's only Windows you could use MSDN WNetAddConnection2

[Gianluca86]

Thank you all for the answers.
@sierdzio : Thanks for the link, now all I need is for Windows, but when I pass on to the linux will be very useful.
@the_ : I don't understand how you can use a Windows function in Qt

In any case, to resolve the problem quickly I turn off password protected sharing.

[the_]

@Gianluca86

easy as using Qt methods ;)

just include the neccessary header files in your source code and add the libs to the pro file.