Using Qwt in eclipse CDT

[Lawand]

I am using Eclipse CDT and Qt4 on Windows XP,
how can I include Qwt classes in my project?
note that I don't need to use Qwt classes to appear in the designer's Widget Box, rather I just want to include and use Qwt classes in code...

Thanks in advance

[StefanK]

I added the include path to the eclipse project file (see attachment) as well as to the QT's .pro project file like...

INCLUDEPATH += /usr/local/qwt-5.1.1/include
LIBS += /usr/local/qwt-5.1.1/lib/libqwt.a

...where /usr/local/qwt-5.1.1 is the installation path of the library.
By the way I use the QT plug-in for eclipse which helps a lot.

I'm working on Linux, perhaps there are differences on XP.
Best Regards
Stefan

[Lawand]

Thanks for replying,
I am using Qwt 5.2.0 and I didn't find the "Include" directory in Qwt...

[dbrmik]

Hi

You could create a Qwt folder in the your Qt include folder and copy all the header files from qwt5.2/src directory to it

Regards

[Lawand]

seems like the "src" is the one I should include, I done like StefanK's screenshot (added "C:\qwt-5.2.0\src" into Include Paths)

And then added:

INCLUDEPATH += C:\qwt-5.2.0\src
LIBS += C:\qwt-5.2.0\lib\libqwt5.a

into the project file (.pro) and now the build succeeds but the application gets terminated right after I launch it and I get this error:

The application failed to initialize properly (0xc0000005). Click on OK to terminate the application.

[Lawand]

I edited qwtconfig.pri and removed this line:

CONFIG           += QwtDll

CONFIG           += QwtDll

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thus, building Qwt as a static library,
and the problem is solved

Thanks guys for your help.

[derektaprell]

Hi,
I am trying something similar and having the smae problem. Basically, I want to have an attitude indicator in an application exactly like the qwt example. I have compiles qwt fine and have successfully compiled and run the samle with the attitude indicator, and added a dial to the ui.

When I try to add the attitude_indicator.cpp and .h files to the project (without using them) it will still compile but returns

exited with code -1073741819

exited with code -1073741819

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or

exited with code -1073741511

exited with code -1073741511

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Running gdb returns

Program received signal SIGSEGV, Segmentation Fault.
Program exited with code 0x30000000005

Program received signal SIGSEGV, Segmentation Fault.
Program exited with code 0x30000000005

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What could be causing this? This is my .pro file:

TARGET = Test1
TEMPLATE = app
 
 
SOURCES += main.cpp\
        mainwindow.cpp \
        attitude_indicator.cpp
 
HEADERS  += mainwindow.h \
        attitude_indicator.h
 
 
FORMS    += mainwindow.ui
 
INCLUDEPATH += "C:\Qwt-5.2.0\include"
LIBS += -L"C:\Qwt-5.2.0\lib" \
        -lqwt5

TARGET = Test1
TEMPLATE = app


SOURCES += main.cpp\
        mainwindow.cpp \
        attitude_indicator.cpp

HEADERS  += mainwindow.h \
        attitude_indicator.h


FORMS    += mainwindow.ui

INCLUDEPATH += "C:\Qwt-5.2.0\include"
LIBS += -L"C:\Qwt-5.2.0\lib" \
        -lqwt5

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Any ideas would be appreciated. Thanks

[Lawand]

Perhaps you should put the Qwt dll file next to the binary (exe) file.

[derektaprell]

Thanks Lawand, unfortunately that did not help. I have solved the problem from your idea though. I had a whole bunch of dlls in the exe folder already and since I reinstalled qt a few days ago the QtGui4.dll did not like playing with Qwt5.dll (possibly from different compiler versions?).

Thanks for your help

[Lawand]

You're Welcome