QT add Label to certain position

Question

I'm new to QT and I want to know how to add a label on a certain position by code. I create a new application and I have these code automatically:

#include "mainwindow.h"
#include "ui_mainwindow.h"

MainWindow::MainWindow(QWidget *parent) :
    QMainWindow(parent),
    ui(new Ui::MainWindow)
{
    ui->setupUi(this);
}

MainWindow::~MainWindow()
{
    delete ui;
}

I want to add a label to a certain position, for example, its geometry is (10, 10, 30, 80). How do I do this by code? Someone can help me?

You should checkout the Qt tutorials. They help you a lot there. — Hayt, Sep 06 '16 at 12:07
1) Use Qt Designer. 2) Create an instance of `QLabel` manually. What is your exact problem? Did you try to read Qt tutorials? — Dmitry Sazonov, Sep 06 '16 at 12:07
See also here for more information: http://stackoverflow.com/tags/qt/info — Hayt, Sep 06 '16 at 12:10
create a QLabel object and set its parent you main window then use qlabel->setGeometry(QRectF(10,10,30,80)) — mostafaTmj, Sep 06 '16 at 12:39

score 8 · Accepted Answer · edited Feb 08 '17 at 15:11

8

You need to create an instance of QLabel, like this: (Here is the example from the docs. Try implementing it yourself with your standards. The docs are helpful)

QLabel *label = new QLabel(this);
label->setFrameStyle(QFrame::Panel | QFrame::Sunken);
label->setText("first line\nsecond line");
label->setAlignment(Qt::AlignBottom | Qt::AlignRight);
//Here is how to change position:
label->setGeometry(QRectF(10,10,30,80));

By the way, here is what an example QLabel looks like:

edited Feb 08 '17 at 15:11

Community

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answered Sep 06 '16 at 12:43

Arnav Borborah

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It work's! By the way, what are the docs? A link will be helpful^_^ – Hongxu Jin Sep 06 '16 at 12:57
Why I fail to create this label when I put these code in the on_button_clicked() function? – Hongxu Jin Sep 06 '16 at 13:12
See http://www.qtforum.org/article/31684/set-the-text-of-a-label-using-a-pushbutton.html?s=03e451860f88b3f356539ee5e95a873138fd1c5d#post111464 – Arnav Borborah Sep 06 '16 at 13:13

QT add Label to certain position

1 Answers1