How to create the method own slot in QT for blackberry Playbook

Hi all

After two days of work-around, I can successfully develop the project of the QT in Qnx IDE for blackberry playbook 2.0.

But now I have a problem to create the method of the slot to call on the click event of the specific button,

Here is my code.

#include

#include
#include
#include
#include

slots machines
void clickedSlots();

int main (int argc, char * argv []) {}

qputenv ("QT_QPA_FONTDIR", "/ usr/fonts/font_repository/monotype");
QCoreApplication::addLibraryPath ("app/native/lib");
QApplication app (argc, argv);

QWidget window;
Window.Resize(1024, 600);
window.setWindowTitle (QString::fromUtf8 ('QPushbutton Background'));
one click = new QPushButton ("Click Me");
Click on-> setToolTip ("Thanks");
Click on-> setMaximumHeight (100);
Click on-> setGeometry (400, 100, 100, 40);
QObject::connect (click, SIGNAL (clicked ()), & app, SLOT (clickedSlots ()));

QPalette * palette1 = new QPalette();
Palette1-> setColor (QPalette::Button, Qt::blue);
Click on-> setPalette(*palette1);

QPushButton * leave = new QPushButton ("Quit");
QObject::connect (quit, SIGNAL (clicked ()), & app, SLOT (quit ()));

QPalette * palette2 = new QPalette();
Palette2-> setColor (QPalette::Background, Qt::green);
Exit-> setPalette(*palette2);
Exit-> setGeometry (200, 100, 100, 40);
QVBoxLayout layout = new QVBoxLayout (& window);
layout-> setGeometry (QRect (0, 0, 1024, 600));
layout-> addWidget (click);
layout-> addWidget (quit);

Window.Show ();
Return app.exec ();
}

void clickedSlots() {}
QMessageBox msgBox.
msgBox.setWindowTitle ("Hello");
msgBox.setText ("You Clicked");
msgBox.show ();
msgBox.exec ();
}

Please help me with this problem. I had started to develop in QT before 2 days only. I'm not familiar with the development of QT.

Thanks in advance.

bskania.

You have the chance, I'm feeling generous today.

I fixed your code. You should really read the Qt documentation, it's fantastic. Here, it's a good start for the signals and Slots.

http://Qt-project.org/doc/Qt-4.8/signalsandslots.html

Mark this message as the solution and give me one as you please.

main.cpp

#include 

#include 
#include 
#include 
#include 
#include "myslots.h"

int main(int argc, char *argv[]) {
    qputenv("QT_QPA_FONTDIR", "/usr/fonts/font_repository/monotype");
    QCoreApplication::addLibraryPath("app/native/lib");
    QApplication app(argc, argv);

    QWidget window;
    window.resize(1024, 600);
    window.setWindowTitle(QString::fromUtf8("QPushbutton Background"));
    QPushButton *click = new QPushButton("Click Me");
    click->setToolTip("Thanks");
    click->setMaximumHeight(100);
    click->setGeometry(400, 100, 100, 40);
    myslots a;
    QObject::connect(click, SIGNAL(clicked()), &a, SLOT(clickedSlot()));

    QPalette* palette1 = new QPalette();
    palette1->setColor(QPalette::Button, Qt::blue);
    click->setPalette(*palette1);

    QPushButton *quit = new QPushButton("Quit");
    QObject::connect(quit, SIGNAL(clicked()), &app, SLOT(quit()));

    QPalette* palette2 = new QPalette();
    palette2->setColor(QPalette::Background, Qt::green);
    quit->setPalette(*palette2);
    quit->setGeometry(200, 100, 100, 40);
    QVBoxLayout* layout = new QVBoxLayout(&window);
    layout->setGeometry(QRect(0, 0, 1024, 600));
    layout->addWidget(click);
    layout->addWidget(quit);
    window.show();
    return app.exec();
}

myslots.h

#include 
#include 
#include 

class myslots : public QObject {
    Q_OBJECT

    public:
        myslots() { };

    public slots:
        void clickedSlot() {
            QMessageBox* msgBox = new QMessageBox();
            msgBox->setWindowTitle("Hello");
            msgBox->setText("You Clicked " + ((QPushButton*) sender())->text());
            msgBox->exec();
        };
};

myslots. Pro

TARGET = myslots
DEPENDPATH += .
INCLUDEPATH += .
HEADERS += myslots.h
SOURCES += main.cpp

Put all these files in the same folder, run qmake in there, it will produce a Makefile. Run make and it comes out a binary executable called myslots. That and your code works.

I don't have a lot of changes, I'll let you step through the code yourself to find out what I did. Look at the documentation for help.

I have not tested this Momentics, nor Alpha PlayBook/Dev. But I'm 100% sure the code works, since I ran it myself.

Tags: BlackBerry Developers

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