Close Button

[Lycus HackerEmo]

I am creating a small program that contains 2 QPusButon, the button "Hola" serves as clicking on the button it should display the message "Hola Mundo", the other button "Salir" what you should do is that when clicked must close the program, but does not work.

#include <QtGui>
#include "holamensaje.h"
 
holamensaje::holamensaje(QWidget *parent)
    : QWidget(parent)
{
    holabutton = new QPushButton("Hola");
    salirbutton = new QPushButton("Salir");
 
    connect(holabutton, SIGNAL(clicked()),this, SLOT(hola()));
    QObject::connect(salirbutton, SIGNAL(clicked()),this, SLOT(quit()));
 
    QHBoxLayout *layout = new QHBoxLayout;
    layout->addWidget(holabutton);
    layout->addWidget(salirbutton);
 
    QGridLayout *mainLayout = new QGridLayout;
    mainLayout->addWidget(holabutton, 0, 0);
    mainLayout->addWidget(salirbutton, 0, 1);
 
    setLayout(layout);
    setWindowTitle("Hola Mensaje");
    resize(250, 100);
}
 
void holamensaje::hola()
{
    QMessageBox msgBox;
    msgBox.setText("Hola Mundo!!!");
    msgBox.exec();
}

#include <QtGui>
#include "holamensaje.h"

holamensaje::holamensaje(QWidget *parent)
    : QWidget(parent)
{
    holabutton = new QPushButton("Hola");
    salirbutton = new QPushButton("Salir");

    connect(holabutton, SIGNAL(clicked()),this, SLOT(hola()));
    QObject::connect(salirbutton, SIGNAL(clicked()),this, SLOT(quit()));

    QHBoxLayout *layout = new QHBoxLayout;
    layout->addWidget(holabutton);
    layout->addWidget(salirbutton);

    QGridLayout *mainLayout = new QGridLayout;
    mainLayout->addWidget(holabutton, 0, 0);
    mainLayout->addWidget(salirbutton, 0, 1);

    setLayout(layout);
    setWindowTitle("Hola Mensaje");
    resize(250, 100);
}

void holamensaje::hola()
{
    QMessageBox msgBox;
    msgBox.setText("Hola Mundo!!!");
    msgBox.exec();
}

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I'm newbie. sorry my English and to use the google translator

[spirit]

QWidget has not such slot as quit you should use close instead or QCoreApplication::quit.

1.

...
connect(salirbutton, SIGNAL(clicked()),this, SLOT(close()));
...

...
connect(salirbutton, SIGNAL(clicked()),this, SLOT(close()));
...

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2.

#include <QApplication>
...
connect(salirbutton, SIGNAL(clicked()),qApp, SLOT(quit()));
...

#include <QApplication>
...
connect(salirbutton, SIGNAL(clicked()),qApp, SLOT(quit()));
...

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[Lycus HackerEmo]

thanks you very much for the help

one more question, everything else in de code is correctly, may be simplified?

[Lykurg]

everything else in de code is correctly, may be simplified?

No, mainLayout is senseless since you don't use it.

[Lycus HackerEmo]

thanks for the help, and remove what was not necessary.