help write code

[Qwerty123098]

I created lineEdit, button, and password generator engine , password is generated in lineEdit, and so, when I click this button, I want to save the password in a .txt file. Who can write such code.
My Qt version is 5.14

[VRonin]

@Qwerty123098 said in help write code:

Who can write such code.

You can! See https://doc.qt.io/qt-5/qfile.html (there is a paragraph that starts with "To write text")

P.S.

I want to save the password in a .txt file

usually you don't save the password but a QCryptographicHash of the password for security reasons

[Qwerty123098]

no, in the sense of the text that is written in lineEdit to save in a .txt file in a directory by clicking on the "Save file" button

[Pl45m4]

@Qwerty123098

Use your lineEdit->text() , convert it to a QByteArray and then generate a QCryptographicHash (like @VRonin mentioned above) from it. Afterwards you can store this in your txt-file.

To do so, you open your file or create a new one and write your array to file.

QFile file("PATH/pw.txt");
if (file.open(QIODevice::WriteOnly)) 
{
	file.write(YourByteArray);
	file.close();
}

@Qwerty123098 said in help write code:

text that is written in lineEdit save in a .txt file in a directory

Just normal text you dont need to encrypt or hash, but you dont want to do this with real passwords and save them as plain text in a txt-file on your drive.

[Qwerty123098]

@Pl45m4 save by clicking on the "Save file" button

[Pl45m4]

@Qwerty123098

Connect your button (clicked signal) with your slot / function and put your code there.
https://doc.qt.io/qt-5/signalsandslots.html

[Qwerty123098]

Thank you