[SOLVED]Yet another Signals and Slots issue

Rage44

Hi Im new to QT and I have a test program to test out Slots and dont know why it dose not work, it should
@#include "mainwindow.h"
#include "ui_mainwindow.h"
#include "speak.h"
#include <QDebug>

MainWindow::MainWindow(QWidget *parent) :
QMainWindow(parent),
ui(new Ui::MainWindow)
{
ui->setupUi(this);

Speak Ask;

//this works on startup
Ask.Speach();

//this works as it should
connect(ui->pushButton,SIGNAL(clicked()),this,SLOT(testSlotLocal()));
//This dose not work, Why dose it not work?
connect(ui->pushButton,SIGNAL(released()),&Ask,SLOT(Speach()));

}

void MainWindow::testSlotLocal( )
{

qDebug()<<"Hi there";

}@

This is the mainwindow.h
@#ifndef MAINWINDOW_H
#define MAINWINDOW_H

#include <QMainWindow>
#include "speak.h"
namespace Ui {
class MainWindow;
}

class MainWindow : public QMainWindow
{
Q_OBJECT

public:
explicit MainWindow(QWidget *parent = 0);
// ~MainWindow();

public slots:

// void testSlotLocal( );

private slots:
void testSlotLocal( );

private:
Ui::MainWindow *ui;
};

#endif // MAINWINDOW_H
@

This is my Object speak.h
@#ifndef SPEAK_H
#define SPEAK_H

#include <QObject>

class Speak : public QObject
{
Q_OBJECT
public:
explicit Speak(QObject *parent = 0);

signals:

public slots:
void Speach();
private slots:

};

#endif // SPEAK_H@

and this is my speak.cpp

@#include "speak.h"
#include <QDebug>

Speak::Speak(QObject *parent) :
QObject(parent)
{
qDebug()<<"How Can I Help You?";
}

void Speak::Speach()
{
qDebug()<<"How Can I Help You?";
}
@

So my question is why dose the slot Speach() not get executed with this connection? I just wont to press the pushButton
and have the message called to qDebug()..

@ connect(ui->pushButton,SIGNAL(released()),&Ask,SLOT(Speach()));@

qxoz

Hi!
Your Ask object is a local object for MainWindow constructor, and it is not exist outside constructor.
Try this:
@#ifndef MAINWINDOW_H
#define MAINWINDOW_H

#include <QMainWindow>
#include "speak.h"
namespace Ui {
class MainWindow;
}

class MainWindow : public QMainWindow
{
Q_OBJECT

public:
explicit MainWindow(QWidget *parent = 0);
// ~MainWindow();

public slots:

// void testSlotLocal( );

private slots:
void testSlotLocal( );

private:
Ui::MainWindow *ui;
Speak *Ask;
};

#endif // MAINWINDOW_H@

@#include "mainwindow.h"
#include "ui_mainwindow.h"
//#include "speak.h" - not needed here
#include <QDebug>

MainWindow::MainWindow(QWidget *parent) :
QMainWindow(parent),
ui(new Ui::MainWindow)
{
ui->setupUi(this);

Ask = new Speak(this);

//this works on startup
Ask->Speach();

//this works as it should
connect(ui->pushButton,SIGNAL(clicked()),this,SLOT(testSlotLocal()));
//This dose not work, Why dose it not work?
connect(ui->pushButton,SIGNAL(released()),Ask,SLOT(Speach()));

}

void MainWindow::testSlotLocal( )
{

qDebug()<<"Hi there";

}@

qxoz

By the way, Rage44 welcome to DevNet!

Rage44

Wow I can feel the love already lol
Thanks for clearing that up it works as it should

sierdzio

Please mark it as solved by editing your initial post and adding "[Solved]" to the title.

Cheers and also a cordial welcome to DevNet.

Jeroentjehome

Hi,
Place [SOLVED] in front of you post! That will void other people from reading this solved issue.
Greetz and welcome!!

sierdzio

Hah, I just knew that would happen ;)