Q_OS_SYMBIAN macro does not work

[ehsanTC]

Hi everybody
In order to write symbian programs in Qt creator, I used Q_OS_SYMBIAN macro but it does not work. I tried Q_WS_S60 macro but it does not work too.
I used these macroe like below:

#if defined (Q_OS_SYMBIAN)
// TInt i;
// ....
#endif

After the execution I recieve a error message that those macros are undefined.
How can I solve the problem?

Thanks.

[somnathbanik]

Check this article this may help you http://wiki.forum.nokia.com/index.ph..._In_Qt_Project

[kamalakshan]

A more appropriate article to refer will be this one. Also check if you have the SDK installed properly and you have the right build configurations.

[skumar_rao]

Hi everybody
In order to write symbian programs in Qt creator, I used Q_OS_SYMBIAN macro but it does not work. I tried Q_WS_S60 macro but it does not work too.
I used these macroe like below:

#if defined (Q_OS_SYMBIAN)
// TInt i;
// ....
#endif

After the execution I recieve a error message that those macros are undefined.
How can I solve the problem?

Thanks.

can you let us see how the error looks in the console window. as for me Q_OS_SYMBIAN works fine . As far as i know #if defined does not give rise to a run time error.

[ehsanTC]

Hi friends
My code is here:

1. #include "mainwindow.h"
2.#include <QtGui/QApplication>
3.
4. #ifdef Q_OS_SYMBIAN
5. // Need these includes to lock orientation in Symbian
6.    #include <eikenv.h>
7.    #include <eikappui.h>
8.    #include <aknenv.h>
9.    #include <aknappui.h>
10.#else
11.   #warning :Q_OS_SYMBIAN not defined
12.#endif
13.
int main(int argc, char *argv[])
{
    QApplication app(argc, argv);

    MainWindow mainWindow;
    mainWindow.setOrientation(MainWindow::ScreenOrientationAuto);
    mainWindow.showExpanded();
    QString temp;

#ifdef Q_OS_SYMBIAN
    TInt i=9;
    QVariant iVar =i ;
    if ( iVar.canConvert<QString>())
    {
        temp = "The type TInt converted successfully to string\nTInt i==" ;
        tem += i.toString() ;
        mainWindow.Text ( temp );
    }

#elif defined(Q_OS_SYMBIAN)
    TInt i=9;
    QVariant iVar =i ;
    if ( iVar.canConvert<QString>())
    {
        temp = "No Q_WS_S60 defined.\n"+
                "The type TInt converted successfully to string\nTInt i==" ;
        tem += i.toString() ;
        mainWindow.Text ( temp );

    }
#elif defined(Q_WS_MAEMO_5)
    TInt i=9;
    QVariant iVar =i ;
    if ( iVar.canConvert<QString>())
    {
        temp = "No Q_WS_S60 and Q_OS_SYMBIAN defined.\n"+
                "The type TInt converted successfully to string\nTInt i==" ;
        tem += i.toString() ;
        mainWindow.Text ( temp );
    }

#else
    temp = "No Q_WS_S60 and Q_OS_SYMBIAN and Q_WS_MAEMO_5 defined";
    mainWindow.Text (temp);
#endif

    return app.exec();
}

I get the #warning :Q_OS_SYMBIAN not defined at line 11 and none of instructions inside the macro blocks in the main function execute.
I used a simple Text() function to write a string on the phone display.
Regards

[ehsanTC]

My project file is:

DEPLOYMENTFOLDERS = # file1 dir1

symbian:TARGET.UID3 = 0xEA621786

symbian:TARGET.CAPABILITY += NetworkServices

SOURCES += main.cpp mainwindow.cpp
HEADERS += mainwindow.h
FORMS += mainwindow.ui

include(deployment.pri)
qtcAddDeployment()

symbian {
    LIBS += -lcone -leikcore -lavkon
}

[kamalakshan]

And in Qt Creator which is the target you have chosen to build the project?

[ehsanTC]

When I wanted to create project, I just chose the Mobile Project and in the .pro file added three lines of code.

[skumar_rao]

When I wanted to create project, I just chose the Mobile Project and in the .pro file added three lines of code.

but did you choose "symbian " target ? by default it is emulator so QtCreator is working properly for that ;-)

[ehsanTC]

Hi friends
My code is here:

1. #include "mainwindow.h"
2.#include <QtGui/QApplication>
3.
4. #ifdef Q_OS_SYMBIAN
5. // Need these includes to lock orientation in Symbian
6.    #include <eikenv.h>
7.    #include <eikappui.h>
8.    #include <aknenv.h>
9.    #include <aknappui.h>
10.#else
11.   #warning :Q_OS_SYMBIAN not defined
12.#endif
13.
int main(int argc, char *argv[])
{
    QApplication app(argc, argv);

    MainWindow mainWindow;
    mainWindow.setOrientation(MainWindow::ScreenOrientationAuto);
    mainWindow.showExpanded();
    QString temp;

#ifdef Q_OS_SYMBIAN
    TInt i=9;
    QVariant iVar =i ;
    if ( iVar.canConvert<QString>())
    {
        temp = "The type TInt converted successfully to string\nTInt i==" ;
        tem += i.toString() ;
        mainWindow.Text ( temp );
    }

#elif defined(Q_OS_SYMBIAN)
    TInt i=9;
    QVariant iVar =i ;
    if ( iVar.canConvert<QString>())
    {
        temp = "No Q_WS_S60 defined.\n"+
                "The type TInt converted successfully to string\nTInt i==" ;
        tem += i.toString() ;
        mainWindow.Text ( temp );

    }
#elif defined(Q_WS_MAEMO_5)
    TInt i=9;
    QVariant iVar =i ;
    if ( iVar.canConvert<QString>())
    {
        temp = "No Q_WS_S60 and Q_OS_SYMBIAN defined.\n"+
                "The type TInt converted successfully to string\nTInt i==" ;
        tem += i.toString() ;
        mainWindow.Text ( temp );
    }

#else
    temp = "No Q_WS_S60 and Q_OS_SYMBIAN and Q_WS_MAEMO_5 defined";
    mainWindow.Text (temp);
#endif

    return app.exec();
}

I get the #warning :Q_OS_SYMBIAN not defined at line 11 and none of instructions inside the macro blocks in the main function execute.
I used a simple Text() function to write a string on the phone display.
Regards

Let me correct it, just the last block codes

#else
.....
#endif

executes

[ehsanTC]

but did you choose "symbian " target ? by default it is emulator so QtCreator is working properly for that ;-)

you mean, what should I do to change the target?
I have to add something to .pro file?

[ltomuta]

In the IDE go to Help -> Contents -> Qt Creator -> Getting started -> Building and Running an Example Application. Read that and learn about targets and target selection.

[savaj]

This article might be helpful to use to create Qt mobile application for Symbian platform.
http://wiki.forum.nokia.com/index.ph...r_with_Symbian

[skumar_rao]

This article might be helpful to use to create Qt mobile application for Symbian platform.
http://wiki.forum.nokia.com/index.ph...r_with_Symbian

i did not understand how this is helpful for "Q_OS_SYMBIAN macro does not work"

[ehsanTC]

When I want to create a new mobile project in the "Qt Versions" level in the creating new project, that we can choose
Desktop, Maemo, Qt Simulator or Symbian Device, there is problem identifiers (yellow triangle)
in front of "Qt 4.7.2 for Symbian^1(Qt SDK)" and "Qt 4.7.2 for Symbian^3(Qt SDK)".
Additionally, when I want to run the project for the Symbian Device, it can not run, but for Maemo or simulator it runs.

Can it become the reason for the problem?