QTableWidgetItem text() function not linking ?

Hello,

I want to get the text of a cell of a tablewidget on my form.

I have already filled the tablewidget with new tablewidgetitems using setItem(), and all text is showing fine in my first test program.

Now i try to write a 'getter' function using the QTablewidget text() function like this :

Code:

---

QString CMainDialog::getTableText( int nRow, int nCol )
{
    QString sResult="-";
    QTableWidgetItem *pCell = ui->tblPorts->item( nRow, nCol );
 
    if( pCell!=NULL )
        sResult = pCell->text();
 
    return sResult;
}

---

Compiling goes fine, but then I get a linker error saying

mainDialog.obj:: error: unresolved external symbol "__declspec(dllimport) public: class QString __thiscall QTableWidgetItem::text(void)const " (__imp_?text@QTableWidgetItem@@QBE?AVQString@@XZ)

I am working with QtCreator and have Qt 4.6.3 statically linked with the MS VC compiler.

Has anyone already encountered this ? Or better yet, has a solution for this ?

Best regards,
Marc

Do you link the right lib files to your code? Do you have build Qt static for release and debug mode?

Hi Lykurg,

Linking fails both in debug and release mode. I have built Qt statically both for release and debug mode.

QtCreator makes my .pro file, and Qt core and gui are included. I just added stuff to use QextSerialPort (which is working by the way, so that's not the issue). I would be surprised if I had to manually add an extra LIB just to use a QTableWidget.

Code:

---

QT       += core gui
TARGET = DibScan
TEMPLATE = app
SOURCES += main.cpp\
        mainDialog.cpp
HEADERS  += mainDialog.h
FORMS    += mainDialog.ui
INCLUDEPATH += ".\include"
LIBS          += -lqextserialport
win32:DEFINES  = _TTY_WIN_ QWT_DLL QT_DLL

---

I don't see why the QTableWidgetItem::setText() function is no problem, but the text() function is. It should be in the same source file in Qt I would think.

Best regards,
Marc

Can't see "CONFIG += static" and I don't know QT_DLL exactly, but dll is not what you want when you link static. I am a little confused. ([WIKI]Building static Qt on Windows[/WIKI])

Hi Lykurg,

Thanks, you pointed me in the right direction.

I just blindly copied the #win32:DEFINES = _TTY_WIN_ QWT_DLL QT_DLL from the example with QextSerialport to my .pro file. I tought it just had to do something with Qextserialport.

But the QT_DLL and QWT_DLL defines are of course not allowed for a static application. Everything works if I leave it out.

I'm not sure why I don't need the CONFIG += static line. I think it is because I modified the QMAKE_CFLAGS / CXXFLAGS / LFLAGS directly in the qmake.conf file in the mkspecs directory.

Best regards,
Marc