VS2013 the first program to write QT

A tutorial on configuring QT environment under VS2013 I will not write a lot on the internet, then I would like to give a very simple introduction to the demo example.

Main.cpp
#include "qttest.h"
#include <QtWidgets/QApplication>
#include <qtwidgets/ qpushbutton>

int main (int argc, char* argv[])//main is the portal of the main program, used to initialize some of the program control to the QT library

{

    qapplication app (argc, argv);   It is necessary to create a Qapplication object before any QT window System parts are used. 

    Qpushbutton button ("Hello Qt", NULL);   Create a button//app.setmainwidget (&button) that displays "Hello Qt"



    ;//Set the main window part of the Application as button

    button.resize (MB);    Call the button's resize function to reset the button size to 200*200

    button.show ();  Call the Display function



    return app.exec ();//Here main controls the program to Qt, and when the application exits QT returns

    //in EXEC (). QT accepts and processes user and system events and passes them to the appropriate widget.

}

Qtest.h
#ifndef qttest_h
#define QTTEST_H

#include <QtWidgets/QMainWindow>
#include "ui_ Qttest.h "

class Qttest:public Qmainwindow
{
    q_object public

:
    qttest (Qwidget *parent = 0);
    ~qttest ();

Private:
    ui::qttestclass Ui;
};

#endif//Qttest_h

Qtest.cpp
#include "qttest.h"

qttest::qttest (Qwidget *parent)
    : Qmainwindow (parent)
{
    UI.SETUPUI (this);
}

Qttest::~qttest ()
{

}