Qt Exception Triggered when passing a QMainWindow as the parent of a GLWidget

praveenaj

I'm getting the following Exception in Debug mode on Qt Creator 2.3

!http://i.stack.imgur.com/KaAjw.jpg(Qt Exception)!

The exception is triggered when passing the parent window into QGLWidget.

@MainWindow::MainWindow(QWidget *parent) :
QMainWindow(parent),
ui(new Ui::MainWindow)
{
ui->setupUi(this);
// some initialization code
glWidget = new GLWidget(); // glWidget = new GLWidget(this) doesn't work either
glWidget->setParent(this); // uncommenting this line prevents the exception and Window is shown fine
}@

Class: MainWindow

@#ifndef MAINWINDOW_H
#define MAINWINDOW_H

#include <QTimer>
#include "glwidget.h"
#include <QMainWindow>

namespace Ui {
class MainWindow;
}

class MainWindow : public QMainWindow
{
Q_OBJECT

public:
explicit MainWindow(QWidget *parent = 0);
~MainWindow();

private:
Ui::MainWindow *ui;
GLWidget *glWidget;

// some opencv variables

public slots:
void timerEvent(QTimerEvent *);

private slots:
void initialize();
};

#endif // MAINWINDOW_H@

Class: GLWidget

@#ifndef GLWIDGET_H
#define GLWIDGET_H

#include <QtOpenGL/QGLWidget>

#include <queue>

class GLWidget : public QGLWidget
{
Q_OBJECT
public:
explicit GLWidget(QWidget *parent = 0);

void initializeGL();
void paintGL();
void resizeGL(int w, int h);

private:

public slots:

};

#endif // GLWIDGET_H@

Stack Trace: (Pointing to Line: 0)

@0 image00400000 0x4039fb
1 glutSolidTeapot glut32 0x10009fd7
2 RtlpAllocateHeap ntdll 0x773d350f
3 QGLContext::makeCurrent QtOpenGL4 0x6304d99d
4 QGLWidget::paintEvent QtOpenGL4 0x63002629
5 QWidget::event QtGui4 0x73d826
6 RtlpCoalesceFreeBlocks ntdll 0x774074f5
7 CSuggestFilterWorker::_RemoveKeysFromWordwheel SHELL32 0x75f985a4
8 QGLWidget::event QtOpenGL4 0x6300b87e
9 QApplicationPrivate::notify_helper QtGui4 0x6fb029
10 QApplication::notify QtGui4 0x6fd88a
11 QWidgetPrivate::repaint_sys QtGui4 0x87e873
12 QWidgetPrivate::syncBackingStore QtGui4 0x732383
13 QWidgetPrivate::syncBackingStore QtGui4 0x7323d1
14 QWidget::event QtGui4 0x73db21
15 free MSVCR90 0x71513c3a
16 0x58b270
17 RtlDebugFreeHeap ntdll 0x7744597c
18 QVector<QPoint>::~QVector<QPoint> QtCore4 0xfa1ed0
19 qWinMain QtCore4 0xfa214e
20 image00400000 0x405738
21 image00400000 0x404bed
22 BaseThreadInitThunk kernel32 0x76f21194
23 __RtlUserThreadStart ntdll 0x773db495
24 _RtlUserThreadStart ntdll 0x773db468@

You can see my full Disassemble log at http://stackoverflow.com/questions/8202429/qt-exception-triggered-when-passing-a-qmainwindow-as-the-parent-of-a-glwidget

Thanks in advance.

cincirin

Can you show the GLWidget constructor ?