Avoiding ui->setupUi(this);

  • Hi I have the following files

    A form mainwindow.ui that contains a button named okButton

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

    MainWindow::MainWindow(QWidget *parent) : QMainWindow(parent) , ui(new Ui::MainWindow){


    delete ui;

    @#include <QtGui/QApplication>
    #include "mainwindow.h"

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

    return a.exec&#40;&#41;;


    Every time I want to acces and object from the form, I have to do it, as in the mainWindow constructor via ui->okButton. What changes do I need to do in order to access the okButton without having to use the ui pointer?

    Thanks in advance

  • You can "inherit from the UI struct":http://qt-project.org/doc/qt-4.8/designer-using-a-ui-file.html#the-multiple-inheritance-approach, so it's members become part of your class

  • ... or you can construct your user interface using code you write for yourself.

  • ...or you can add a QPushButton* member variable in your class, and assign the ui->okButton to that variable directly after the call to setupUi.

    ...or you can learn to appreciate that your UI elements are all nicely grouped together in a ui member instead of cluttering up your internal API.

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