Fill input in QWebView

[RzuF]

doc = ui->webView->page()->mainFrame()->documentElement();
 
    QWebElement login = doc.findFirst("input[id=\"login\"]");
    QWebElement password = doc.findFirst("input[id=\"password\"]");
    QWebElement password_conf = doc.findFirst("input[id=\"password_conf\"]");
    QWebElement answer =  doc.findFirst("input[id=\"secret_a\"]");
    QWebElement recapatcha = doc.findFirst("input[id=\"recaptcha_response_field\"]");
 
    login.setAttribute("value", ui->lineEdit->text());
    password.setAttribute("value", ui->lineEdit_2->text());
    password_conf.setAttribute("value", ui->lineEdit_2->text());
    answer.setAttribute("value", ui->lineEdit_3->text());
    recapatcha.setAttribute("value", ui->lineEdit_4->text());

doc = ui->webView->page()->mainFrame()->documentElement();

    QWebElement login = doc.findFirst("input[id=\"login\"]");
    QWebElement password = doc.findFirst("input[id=\"password\"]");
    QWebElement password_conf = doc.findFirst("input[id=\"password_conf\"]");
    QWebElement answer =  doc.findFirst("input[id=\"secret_a\"]");
    QWebElement recapatcha = doc.findFirst("input[id=\"recaptcha_response_field\"]");

    login.setAttribute("value", ui->lineEdit->text());
    password.setAttribute("value", ui->lineEdit_2->text());
    password_conf.setAttribute("value", ui->lineEdit_2->text());
    answer.setAttribute("value", ui->lineEdit_3->text());
    recapatcha.setAttribute("value", ui->lineEdit_4->text());

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I only fill inputs and I sumbit it by myself in QWebView. It hard to me, explain this what I want to do. But I belive you will understand me ;]

EDIT:

I think that I should use Requests to do it, am I on good way?