Qwt app compile error

[ajb]

I'm having problems with compiling the Qwt test applications. I'm using Qt Creator 1.1.0 and Qt 2009.02, and I've downloaded the Qwt 5.2.0 libraries. I'm developing in WinXP SP3.

I've copied some of the Qwt example files into new directories and imported them into Qt Creator through the relevant "pro" file (e.g. the one in "\examples\simple_plot"). The application builds fine, but exits immediately and gives the following error when I run it:

C:/Work/Qt/plot_test/debug/plot_test.exe exited with code -1073741515

C:/Work/Qt/plot_test/debug/plot_test.exe exited with code -1073741515

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If however I open up the example files directly from the <QwtRoot>\examples\... directory, they compile fine in QtCreator.

I've noticed a few other people on this forum having similar problems (e.g. here and here) but there are no suggested solutions in those cases.

Any ideas what could be going wrong? This is a minimal case, but the real issue is that I get this error message when I compile my custom applications in QtCreator whenever they make use of the Qwt libraries. Any suggestions would be greatly appreciated.

[ajb]

OK it looks like it's got to do with the PRO file. This thread is very handy.

I've followed the suggestions in that thread and I'm still getting the same problem. My PRO file is:

#include( C:\Qt\qwt-5.2.0\examples\examples.pri )
include( C:\Qt\qwt-5.2.0\qwtconfig.pri )
 
TARGET       = data_plot
 
HEADERS = \
    data_plot.h
 
SOURCES = \
     data_plot.cpp \
     main.cpp
 
LIBS += C:\Qt\qwt-5.2.0\lib\qwt5.dll
INCLUDEPATH += C:\Qt\qwt-5.2.0\src
DEFINES += QWT_DLL

#include( C:\Qt\qwt-5.2.0\examples\examples.pri )
include( C:\Qt\qwt-5.2.0\qwtconfig.pri )

TARGET       = data_plot

HEADERS = \
    data_plot.h

SOURCES = \
     data_plot.cpp \
     main.cpp

LIBS += C:\Qt\qwt-5.2.0\lib\qwt5.dll
INCLUDEPATH += C:\Qt\qwt-5.2.0\src
DEFINES += QWT_DLL

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Is there anything obviously wrong with this? (The installation directory for Qwt is C:\Qt\qwt-5.2.0 )

[ajb]

Fixed. Had to first do a clean / rebuild to see the effects of the changes. Then copied examples.pri into my .pro file, and narrowed down the key additional lines to the following:

QWT_ROOT = c:/Qt/qwt-5.2.0
INCLUDEPATH += $${QWT_ROOT}/src
QWTLIB       = qwt$${SUFFIX_STR}
LIBS   += -L$${QWT_ROOT}/lib -l$${QWTLIB}

QWT_ROOT = c:/Qt/qwt-5.2.0
INCLUDEPATH += $${QWT_ROOT}/src
QWTLIB       = qwt$${SUFFIX_STR}
LIBS   += -L$${QWT_ROOT}/lib -l$${QWTLIB}

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[jmc23]

Hi!

I'm recovering this thread because I have exactly the same problem. There's only one difference... i'm using QtCreator 1.3.1 based on Qt 4.6.2

The installation of qwt5.2 has been completed successfully and i've applied the solutions posted here before.

In my .pro file I have added:

QWT_ROOT = C:\Qt\2010.02.1\qt\Qwt-5.2.1
 
INCLUDEPATH += $${QWT_ROOT}\include
 
QWTLIB       = qwt5$${SUFFIX_STR}
 
LIBS        += -L$${QWT_ROOT}\lib\qwtd5.dll -l$${QWTLIB}
 
DEFINES += QWT_DLL

QWT_ROOT = C:\Qt\2010.02.1\qt\Qwt-5.2.1

INCLUDEPATH += $${QWT_ROOT}\include

QWTLIB       = qwt5$${SUFFIX_STR}

LIBS        += -L$${QWT_ROOT}\lib\qwtd5.dll -l$${QWTLIB}

DEFINES += QWT_DLL

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All seems to work perfectly since the program exits unexpectedly returning -1073741515

Could the problem be related with incompatibility between qwt5.2 and qt4.6.2 ? I don't think so but I really don't know.

I would appreciate any suggestions! I'm very stucked right now! Thanks!

I'm using Windows, by the way.

[manmohan]

Hi,
I do have the same problem when I try to compile it with the qtcreator...
So tried using the Qt Command Prompt and the pro executed with out any problem...
But in order to open the .exe genrated I copied the qwt5.dll to the debug folder where the exe was generated...
then it worked well

win32 {
INCLUDEPATH += C:/Qt/qwt-5.2.0/src #your path for qwt source code
LIBS += -L C:/Qt/qwt-5.2.0/lib/ -lqwt5 #your path for qwt lib files.
}
after adding it you need to go to qt Command prompt and
enter
qmake ****.pro
mingw32-make
this will do it but you need to put the QtGui4.dll,QtCore4.dll,QtSvg4.dll and qwt5.dll into the debug folder and then open the executable file...