QAxObject and linker error LNK2019

pelumu

Hi,

after a pause of 6 years today I tried to develop a OLE-Client with Qt 5.0.2 and Qt Creater.

When I try to build my application I get 4 LNK2019 Errors refering to QAxObject. Can anybody help me?

My source code:

main.cpp:
#include <QCoreApplication>

#include <ActiveQt/QAxObject>

int main(int argc, char *argv[])
{
QCoreApplication a(argc, argv);

QAxObject broker;
bool brokerGeladen = broker.setControl("Broker.Application");
if(brokerGeladen)
{
    broker.dynamicCall("Quit");
}

return a.exec&#40;&#41;;

}

ole.pro:
#-------------------------------------------------

Project created by QtCreator 2013-06-26T17:28:09

#-------------------------------------------------

QT += core

QT -= gui

TARGET = Ole
CONFIG += console
CONFIG += qaxcontainer
CONFIG -= app_bundle

TEMPLATE = app

SOURCES += main.cpp

SGaist

Hi and welcome to devnet,

Did you check that you indeed have the QAx related libraries in your Qt installation ?

pelumu

Hi,

There is no qaxcontainer.lib in the lib Directory but a qt5axcontainer.lib. Using qt5axcontainer in the pro file doesn't help too.
Tomorrow I'll try it with VS 2012. Perhaps it's Working better.

dbzhang800

[quote author="pelumu" date="1372281406"]Hi,

There is no qaxcontainer.lib in the lib Directory but a qt5axcontainer.lib. Using qt5axcontainer in the pro file doesn't help too.
Tomorrow I'll try it with VS 2012. Perhaps it's Working better.
[/quote]

What you need is
@
QT += axcontainer
@
when using Qt5.

Please read the manual carefully.

And note that, CoInitialize() must be called when using COM/ActiveX. Nevertheless, you can omit CoInitialize() when using QApplication, as it has been called by QApplication. COM is needed by drag and drop basic function that provided by Windows.

pelumu

QT += axcontainer
doesn't help.

In which manual can I find this Information?

dbzhang800

Error messages reported by compiler and linker will be helpful ;-)

pelumu

It is working now.

My steps:
I uninstalled Qt 5.0.2 for Windows 64-bit (VS 2012, 500 MB) and installed Qt 5.0.2 for Windows 32-bit (VS 2010, 485 MB). Now I could compile it without errors but debugging didn't work.
Next step I uninstalled VS 2010 version and installed MinGW version.

With this version I can compile and debug without errors.

Thank you very much for your help.