Creation of .dll file using build option in Qt-Creator

[sandeepv]

Hi

I have a project which has to create a .dll file when run in debug or release modes. But i see no .dll file is created, but it shows a .exe file created instead. Please help me out how to create a .dll file. Please tell me what is the mistake i'm making.

Thank you in advance.

• Sandeep

[mcosta]

Post your .pro file.
Generally speaking should be

@TEMPLATE=lib
CONFIG += dll@

[sandeepv]

Hi mcosta,

Below is my .pro file.

NAME = dll_example
TEMPLATE = app
CONFIG += console release
CONFIG -= qt
DEFINES += DIRECT_INCLUDE

LIBS += jazznovoscreendatasource.lib

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

datasource specific files

SOURCES += main.cpp

HEADERS += jazzport.h
SOURCES += jazzport.cpp

HEADERS += jazzstring.h
SOURCES += jazzstring.cpp

win32:CONFIG(release, debug|release): LIBS += -L$$PWD/ -ljazznovoscreendatasource
else:win32:CONFIG(debug, debug|release): LIBS += -L$$PWD/ -ljazznovoscreendatasourced
else:unix: LIBS += -L$$PWD/ -ljazznovoscreendatasource

INCLUDEPATH += $$PWD/
DEPENDPATH += $$PWD/

[mcosta]

Hi,

how I said in the previous post, in your PRO file there isn't a TEMPLATE=lib.

In your PRO youcreate an executable that link a library named jazznovoscreendatasource.

What do you want instead?

[sandeepv]

Hi,

ya thats all.. Thank you. It worked fine. It was able to give me a .dll file. But i face a major problem with the .dll created. In the newly created .dll file, there is no method getting exported. I am trying to export 2 functions to the dll. But in the created dll there are no functions getting exported. Any idea with this??

[SGaist]

Hi,

Have a look at this "wiki":http://qt-project.org/wiki/How_to_create_a_library_with_Qt_and_use_it_in_an_application

It should get you started.

Hope it helps

[AlterX]

just use:
@
TEMPLATE = lib
@

It will generate .dll under windows and .so under linux or other under other systems

[ceora]

[quote author="sandeepv" date="1368129995"]Hi,

ya thats all.. Thank you. It worked fine. It was able to give me a .dll file. But i face a major problem with the .dll created. In the newly created .dll file, there is no method getting exported. I am trying to export 2 functions to the dll. But in the created dll there are no functions getting exported. Any idea with this??[/quote]

Ive got the same problem, if you use visual studio compiler try to add this to the file you nedd to export the function:

@#define DllExport __declspec( dllexport )@

and add DllExport before any function you need to export (in the header).