Qt aligning the application to the top left corner on screen

Question

Recently I am working on a Qt Gui application with c++ and I need to align my window to top left corner when I run the application. (It should open on the top left corner by default).

Is there any way I can do this on the code or by Qt designer?

I would be really glad if someone could help.

score 7 · Accepted Answer · answered May 23 '18 at 07:51

7

Supposing you have a main window, move it to the top left corner of the primary screen rectangle (get the screen object, and its geometry, from the QApplication instance):

#include "mainwindow.h"
#include <QApplication>
#include <QScreen>

int main(int argc, char *argv[])
{
    QApplication a(argc, argv);

    MainWindow w;

    QRect screenrect = a.primaryScreen()->geometry();
    w.move(screenrect.left(), screenrect.top());
    w.show();

    return a.exec();
}

answered May 23 '18 at 07:51

p-a-o-l-o

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Thank you so much it worked. Do you know any other way that does this, but not by changing the main.cpp? – BUY May 23 '18 at 08:09
1

You can put the (more or less) same code in the main window constructor, I think. What's the trouble with changing the main? – p-a-o-l-o May 23 '18 at 08:13
Just for more plain code. It has no trouble I was curious, thank you. – BUY May 23 '18 at 08:20
Remind not to forget "#include " – Wade Wang Apr 21 '21 at 07:23

Qt aligning the application to the top left corner on screen

1 Answers1