Print text on the LineEdit

[redfox_02]

Hello everyone I am new to this forum and I enjoy a bit of time with QT 5.7 I've created a first graphical interface, but now I have a problem where I'm stuck printing LineEdit.
I post the code I was able to print in the textEdit text but if you want to print in a LineEdit simply replacing the previous me error:


void MainWindow:n_actionPrint_triggered()
{
QPrinter printer;
printer.setPrinterName("desierd printer name");
QPrintDialog dialog(&printer,this);
if(dialog.exec() == QDialog::Rejected) return;
ui->textEdit->print(&printer);
}


If as I said now I replace the textEdit the LineEdit me error will be changed because of something that row but do not know how ...

And also I should print various LineEdit not only so do not know even then how to assemble the various LineEdit because they are printed in the correct position.

If anyone has a solution thank you in advance.

[Nizars]

I am not quite sure what you mean. I am a beginner myself but I wonder, can you first get the text from LineEdit and then send it to the printer function? Basically dividing the process into smaller steps to diagnose where the problem occurs.

#include <QDebug>
void MainWindow::on_actionPrint_triggered()
{
    // actionPrint triggered
    qDebug() << "actionPrint triggered."
 
    // instanciate new printer
    QPrinter printer;
    qDebug() << "Printer instanciated."
 
    // Set name
    printer.setPrinterName("Desired printer name");
    qDebug() << "Printer name set: " + printer.name;
 
    // Instanciate new QPrintDialog
    QPrintDialog dialog(&printer,this);
 
    // Dialog
    if(dialog.exec() == QDialog::Rejected)
    {
        qDebug() << "QDialog rejected!";
        return;
    }
 
    // get text from LineEdit
    QString toPrint = ui->lineEdit->text().toString();
    qDebug() << "LineEdit text retreived:\n" + toPrint;
 
    // Print text from LineEdit
    toPrint->print(&printer);
    qDebug() << "Text print function called.";

#include <QDebug>
void MainWindow::on_actionPrint_triggered()
{
    // actionPrint triggered
    qDebug() << "actionPrint triggered."

    // instanciate new printer
    QPrinter printer;
    qDebug() << "Printer instanciated."

    // Set name
    printer.setPrinterName("Desired printer name");
    qDebug() << "Printer name set: " + printer.name;

    // Instanciate new QPrintDialog
    QPrintDialog dialog(&printer,this);

    // Dialog
    if(dialog.exec() == QDialog::Rejected)
    {
        qDebug() << "QDialog rejected!";
        return;
    }

    // get text from LineEdit
    QString toPrint = ui->lineEdit->text().toString();
    qDebug() << "LineEdit text retreived:\n" + toPrint;

    // Print text from LineEdit
    toPrint->print(&printer);
    qDebug() << "Text print function called.";

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Maybe "QString toPrint" isn't what you should end up using in the end, you might change it to QDocument or something else, I amnot quite sure really since I have never worked with those classes. I just thought that having the qDebug telling you what is going on might help you narrow down your your problem occurs.