QwtPlot keeps crashing my program - "The program has unexpectedly finished."
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And, I have no idea why, nor how to fix it.
( I'm actually pretty sure this is a really newbie problem too...)
This was originally happing in another tutorial I was working on,
and I eventually traced it back to the line:
@ QwtPlot *plot = new QwtPlot();@Just to make sure, I create a new project to see if I could figure out what it was (not)doing
(no luck)Everything builds, I'm working in QtCreator v 5.3, using MinGW, and on a windows OS.
main.cpp
@#include "tutorial.h"
#include <QApplication>
#include <qwt_plot.h>int main(int argc, char *argv[])
{
QApplication a(argc, argv);
QwtPlot *plotc = new QwtPlot();
return a.exec();// QApplication a(argc, argv);
// Tutorial w;
// w.show();// return a.exec();
}
@.pro file
@
QT += core guigreaterThan(QT_MAJOR_VERSION, 4): QT += widgets
TARGET = tutorial
TEMPLATE = appSOURCES += main.cpp
tutorial.cppHEADERS += tutorial.h
CONFIG += qwt
#-the graphic library :
INCLUDEPATH += C:/Qt/qwt-6.1.0/src
LIBS += C:\Qt\qwt-6.1.0\lib\libqwt.a
@tutorial.cpp and tutorial.h I haven't touched
@ //tutorial.cpp#include "tutorial.h"
Tutorial::Tutorial(QWidget *parent)
: QWidget(parent)
{
}Tutorial::~Tutorial()
{}
@@ //tutorial.h
#ifndef TUTORIAL_H
#define TUTORIAL_H#include <QWidget>
class Tutorial : public QWidget
{
Q_OBJECTpublic:
Tutorial(QWidget *parent = 0);
~Tutorial();
};#endif // TUTORIAL_H
@ -
Hi and welcome to devnet,
Are you sure your qwt dll's can be found ?
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I have the same question here: http://qt-project.org/forums/viewthread/46723/