Bugs, style changes in 4.1.0?

[dimitri]

There may be a problem with the program (I don't see how, it is very simple program),

Please post a minimal, compilable example.

but that doesn't explain why I only receive the error with the 4.1.0 compiled program. I have also found that it doesn't occur when I give a different style on the command line (e.g. "-style=plastique" or "-style=windows"). I'm not exactly sure how to debug to find a "BadWindow" error, as it doesn't dump a core, or send a segmentation fault or anything.

It could be something with Qt 4.1. Or it could be something with your program resulting in undefined behavior. It's hard to tell without some compilable, minimal example that reproduces the problem.

[simk]

Please post a minimal, compilable example.

I attached a small example to my original post. Here is the code again:

#include <QtGui>
#include <QMainWindow>
 
int main(int argc, char *argv[])
{
  QApplication app(argc, argv);
 
  QMainWindow *mainWin = new QMainWindow;
 
  mainWin->setMinimumSize(400, 400);
 
  // Dock Windows
  QDockWidget *dock = new QDockWidget("Test DockWindow 1", mainWin);
  mainWin->addDockWidget(Qt::RightDockWidgetArea, dock);
  dock->setMinimumSize(100, 10);
 
  dock = new QDockWidget("Test DockWindow 2", mainWin);
  mainWin->addDockWidget(Qt::BottomDockWidgetArea, dock);
  dock->setMinimumSize(10, 100);
 
  // Central widget
  QFrame *frame = new QFrame(mainWin);
  mainWin->setCentralWidget(frame);
  QHBoxLayout *box = new QHBoxLayout(frame);
 
  // two simple push buttons
  QPushButton *pb = new QPushButton("Push Me!", frame);
  box->addWidget(pb);
  pb = new QPushButton("Me too!", frame);
  box->addWidget(pb);
 
  mainWin->show();
  return app.exec();
}

#include <QtGui>
#include <QMainWindow>

int main(int argc, char *argv[])
{
  QApplication app(argc, argv);

  QMainWindow *mainWin = new QMainWindow;

  mainWin->setMinimumSize(400, 400);

  // Dock Windows
  QDockWidget *dock = new QDockWidget("Test DockWindow 1", mainWin);
  mainWin->addDockWidget(Qt::RightDockWidgetArea, dock);
  dock->setMinimumSize(100, 10);

  dock = new QDockWidget("Test DockWindow 2", mainWin);
  mainWin->addDockWidget(Qt::BottomDockWidgetArea, dock);
  dock->setMinimumSize(10, 100);

  // Central widget
  QFrame *frame = new QFrame(mainWin);
  mainWin->setCentralWidget(frame);
  QHBoxLayout *box = new QHBoxLayout(frame);

  // two simple push buttons
  QPushButton *pb = new QPushButton("Push Me!", frame);
  box->addWidget(pb);
  pb = new QPushButton("Me too!", frame);
  box->addWidget(pb);

  mainWin->show();
  return app.exec();
}

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