Changing text of button in no relation to button

[tbscope]

Always try to use the lowest common denominator.
All objects of the main window are accessible via the main window, thus change the text of a component of the main window inside a function or slot of the main window.

Example

void MainWindow::slotButtonClicked()
{
    int result = doSomething();
 
    if (result == 1) 
        button->setText("New text");
}
 
int MainWindow::doSomething()
{
    return something;
}

void MainWindow::slotButtonClicked()
{
    int result = doSomething();

    if (result == 1) 
        button->setText("New text");
}

int MainWindow::doSomething()
{
    return something;
}

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