QT for multi-window switching

This article turned from: http://www.2cto.com/kf/201203/124441.html. QT Multi-window switching program layout in 1.ui files

2. Main program main.cpp

#include <QtGui/QApplication>  
#include "mainwindow.h"  
 
int main (int argc, char *argv[]) 
{ 
    Qapplication A (argc, argv); 
    MainWindow W; 
    W.show (); 
     
    return a.exec (); 
} 

Main interface Program: mainwindow.h

ifndef mainwindow_h 
#define MAINWINDOW_H  
 
#include <QMainWindow>  
#include "Dialog1.h"  
# Include "Dialog2.h"  
 
namespace Ui { 
class MainWindow; 
} 
 
Class Mainwindow:public Qmainwindow 
{ 
    q_object public 
     
: 
    explicit MainWindow (Qwidget *parent = 0); C12/>~mainwindow (); 
     
Private slots: 
    void on_pushbutton_clicked (); 
 
    void on_pushbutton_2_clicked (); 
 
 
    void on_pushbutton_3_clicked (); 
 
Private: 
    Ui::mainwindow *ui; 
    Dialog1 Dialog1; 
    Dialog2 dialog2; 
}; 
 
#endif//Mainwindow_h 

Mainwindow.cpp

"> #include" mainwindow.h " 
#include" ui_mainwindow.h "  
 
 
Mainwindow::mainwindow (Qwidget *parent): 
    Qmainwindow (parent), 
    UI (new Ui::mainwindow) 
{ 
    ui->setupui (this); 
 
} 
 
Mainwindow::~mainwindow () 
{ 
    delete ui; 
} 
 
void mainwindow::on_pushbutton_clicked () 
{ 
    this->hide (); 
    Dialog1.show (); 
    Dialog1.exec (); 
    This->show (); 
 
} 
 
void mainwindow::on_pushbutton_2_clicked () 
{ 
    this->close (); 
} 
 
 
 
void mainwindow::on_pushbutton_3_clicked () 
{ 
    this->close (); 
    Dialog2.show (); 
    Dialog2.exec (); 
    This->show (); 
} 

Dialog1.cpp

#include "dialog1.h"  
#include "Ui_dialog1.h"  
 
Dialog1::D ialog1 (Qwidget *parent): 
    qdialog (parent), 
    UI (New UI::D ialog1) 
{ 
    ui->setupui (this); 
} 
 
Dialog1::~dialog1 () 
{ 
    delete ui; 
} 
 
void dialog1::on_pushbutton_clicked () 
{ 
 
    this->close (); 
} 

Dialog2.cpp is similar to Dialog1

Key points:

This->close ();
Dialog2.show ();
Dialog2.exec ();
This->show ();
determine if the main interface is echoing by waiting for the dialog.exec () message. Operation Result: