[Solved] Connect combobox using signals

[p3c0]

@Ratzz Correct. Now the rest should work. Just don't forget to change the slot's definition.

[Ratzz]

@p3c0 Why to change the slot definition?

[p3c0]

@Ratzz Because in you have connected the signal activated to slot m_combobox which takes one argument.
connect(combobox,SIGNAL (activated(int)),this,SLOT(m_combobox(int)));
But there is no such slot defined with single argument and thus the connection will fail as it will not be able to find that slot. You have a slot m_combobox() which takes no arguments.

[Ratzz]

@p3c0
i used setGeometry() to assign position

•  pushbutton->setGeometry(QRect(QPoint(100, 200),QSize(90, 40)));
  

How to do use move();?

[p3c0]

@Ratzz pushbutton->move(10,100). See http://doc.qt.io/qt-5/qwidget.html#pos-prop
But as said earlier its best to use Layouts. See using Layouts for more details.

[Ratzz]

@p3c0 Can you give me rough sketch for my slot?

[p3c0]

@Ratzz
connect(combobox,SIGNAL (activated(int)),this,SLOT(m_combobox(int))); -> This is correct
mainwindow.h

private slots:
    void m_combobox(int index);

mainwindow.cpp

void MainWindow::m_combobox(int index)
{
    label->setText("1");
}

[Ratzz]

@p3c0
Thank you.
I will try using Layouts.

[p3c0]

@Ratzz You're Welcome :)
Since you are new here few more forum related reminders:

• Always surround the code blocks with ``` (3 backticks) while posting so that it gets nicely formatted and thus more readable for others.
• Mark the post as solved by editing the post title and prepending [Solved]

Happy Qt Coding ...

[Ratzz]

@p3c0
Sure :)