Abt Push Butoon+ Signals & SLOTS

[Bharath Kumar]

Hi all,
What i want is whenever i press PushButton (like 1,2,3,4.....  in our 
telephone) it should be displayed on LCD and it''s value should be 
posted to some  application wchich is running backside.
I'm able to put  bush buttons using grid,but i can't "connect" it to LCD 
display  with an int value which is on the face of PushButton.
**The code is attached as an attachment as main.cpp .The exe(t7) also 
there for reference.* *

Plz any one help me out.*"*I'm using Qt/X11 version is 4.0 on Linux 
2.4.18.3"* *

Thanks in advance.
Regards,
BHARATH

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/****************************************************************
**
** VOIP APPLICATION
**
****************************************************************/

#include <stdio.h>
#include <QApplication>
#include <QFont>
#include <QGridWidget>
#include <QLCDNumber>
#include <QPushButton>
#include <QVBoxWidget>
#include <QAbstractButton>
#include <QLineEdit>
#include <QWidget>


#include "lcdrange.h"

class MyWidget : public QVBoxWidget
{
public:
    MyWidget(QWidget *parent = 0);
};

MyWidget::MyWidget(QWidget *parent)
    : QVBoxWidget(parent)
{
    setWindowTitle(tr("VoIP Application"));
    resize(325,400);
    
    //QLineEdit *inputLineEdit = new QLineEdit();
    
   //this is for lcd with max of 20 chars it can display
    QLCDNumber *lcd = new QLCDNumber(30, this);
   //lcd->setSegmentStyle(QLCDNumber::Filled);

    QGridWidget *grid = new QGridWidget(4, this);

    QPushButton *b1 = new QPushButton(grid);
    b1->setText("1") ;
    b1->setFont(QFont("Times", 16, QFont::Bold));
    connect(b1, SIGNAL(clicked()), lcd, SLOT(display(int)));
    
    QPushButton *b2 = new QPushButton(grid);
    b2->setText("2") ;
    b2->setFont(QFont("Times", 16, QFont::Bold));
    connect(b2, SIGNAL(clicked()), lcd, SLOT(display(int)));
    
    QPushButton *b3 = new QPushButton(grid);
    b3->setText("3") ;
    b3->setFont(QFont("Times", 16, QFont::Bold));
    connect(b3, SIGNAL(clicked()), lcd, SLOT(display(int)));

    QPushButton *call = new QPushButton(grid);
    call->setText("&CALL") ;
    call->setFont(QFont("Times", 16, QFont::Bold));
    connect(call, SIGNAL(clicked()), lcd, SLOT(display(int)));
    
    QPushButton *b4 = new QPushButton(grid);
    b4->setText("4") ;
    b4->setFont(QFont("Times", 16, QFont::Bold));
    connect(b4, SIGNAL(clicked()), lcd, SLOT(display(int)));
    
    QPushButton *b5 = new QPushButton(grid);
    b5->setText("5") ;
    b5->setFont(QFont("Times", 16, QFont::Bold));
    connect(b5, SIGNAL(clicked()), lcd, SLOT(display(int)));
    
    QPushButton *b6 = new QPushButton(grid);
    b6->setText("6") ;
    b6->setFont(QFont("Times", 16, QFont::Bold));
    connect(b6, SIGNAL(clicked()), lcd, SLOT(display(int)));
    
    QPushButton *flash = new QPushButton(grid);
    flash->setText("&FLAS") ;
    flash->setFont(QFont("Times", 16, QFont::Bold));
    connect(flash, SIGNAL(clicked()), lcd, SLOT(display(int)));
    
    QPushButton *b7 = new QPushButton(grid);
    b7->setText("7") ;
    b7->setFont(QFont("Times", 16, QFont::Bold));
    connect(b7, SIGNAL(clicked()), lcd, SLOT(display(int)));
    
    QPushButton *b8 = new QPushButton(grid);
    b8->setText("8") ;
    b8->setFont(QFont("Times", 16, QFont::Bold));
    connect(b8, SIGNAL(clicked()), lcd, SLOT(display(int)));
    
    QPushButton *b9 = new QPushButton(grid);
    b9->setText("9") ;
    b9->setFont(QFont("Times", 16, QFont::Bold));
    connect(b9, SIGNAL(clicked()), lcd, SLOT(display(int)));
    
    QPushButton *transfer = new QPushButton(grid);
    transfer->setText("&XFER") ;
    transfer->setFont(QFont("Times", 16, QFont::Bold));
    connect(transfer, SIGNAL(clicked()), lcd, SLOT(display(int)));
    
    QPushButton *star = new QPushButton(grid);
    star->setText("*") ;
    star->setFont(QFont("Times", 16, QFont::Bold));
    connect(star, SIGNAL(clicked()), lcd, SLOT(display(int)));
    
    QPushButton *b0 = new QPushButton(grid);
    b0->setText("0") ;
    b0->setFont(QFont("Times", 16, QFont::Bold));
    connect(b0, SIGNAL(clicked()), lcd, SLOT(display(int)));
    
    QPushButton *hash = new QPushButton(grid);
    hash->setText("#") ;
    hash->setFont(QFont("Times", 16, QFont::Bold));
    connect(hash, SIGNAL(clicked()), lcd, SLOT(display(int)));
    
    QPushButton *conf = new QPushButton(grid);
    conf->setText("C&ONF") ;
    conf->setFont(QFont("Times", 16, QFont::Bold));
    connect(conf, SIGNAL(clicked()), lcd, SLOT(display(int)));
    
    QPushButton *quit = new QPushButton(grid);
    quit->setText("Q&uit") ;
    quit->setFont(QFont("Times", 16, QFont::Bold));
    connect(quit, SIGNAL(clicked()), qApp, SLOT(quit()));
    
}
int main(int argc, char *argv[])
{
            QApplication app(argc, argv);
            MyWidget widget;
            widget.show();
            return app.exec();
}