QT with DLL ?

[schnitzel]

That's a very basic question - get your hands on a C++ book. Try the online book referenced here:
http://doc.qt.nokia.com/4.7/how-to-learn-qt.html


1) Have you tried mingw-utils - reimp and dlltool to create an import lib? Make sure you use the 0.3 version, not the latest.

2) You might want to create a new project of type 'C++ Library' in Qt Creator. Then, assuming the source code you have is portable, add all cpp and h files to the project.

3) You can also learn a lot from looking at how other projects work, for example qextserialport.

[digog]

2) You might want to create a new project of type 'C++ Library' in Qt Creator. Then, assuming the source code you have is portable, add all cpp and h files to the project.

I'm not sure if the source code is portable, but I did it. It created a .a file not a .lib file.

3) You can also learn a lot from looking at how other projects work, for example qextserialport.

Didn't find this example.

[schnitzel]

Ok, if you created the .a file, then you should be able to link it to your app by specifying the following in your .pro file:

LIBS += path/to/library/yourlib.a

LIBS += path/to/library/yourlib.a

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about the qextserialport project, you can find it here: http://code.google.com/p/qextserialport/

I have successfully built that library as dynamic and static.

[digog]

I have successfully built that library as dynamic and static.

What library you are talking about? mpusbapi?

And another question is if I want to link that library at run-time can I use the QLibrary?