How to forbid close of one dialog and hide the cross

[stella1016]

In a dialog I have a progressbar, which indicates very important program update. This process cannot be interrupted. So I need to forbid the default ESCAPE button press action and hide the cross of the dialog.

What can I do to make this possible? Thanks.

[Zlatomir]

You can use a QWidget (as a "window" for your update) instead of a QDialog, since that doesn't close on "Esc" press.

And you can hide the close button by using a frame-less window flag:

window->setWindowFlags(Qt::FramelessWindowHint);

window->setWindowFlags(Qt::FramelessWindowHint);

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[wysota]

#include <QtGui>
 
int main(int argc, char **argv) {
  QApplication app(argc, argv);
 
  QDialog dlg;
  dlg.setWindowFlags(Qt::Dialog|Qt::CustomizeWindowHint|Qt::WindowTitleHint);
  return dlg.exec();
}

#include <QtGui>

int main(int argc, char **argv) {
  QApplication app(argc, argv);
  
  QDialog dlg;
  dlg.setWindowFlags(Qt::Dialog|Qt::CustomizeWindowHint|Qt::WindowTitleHint);
  return dlg.exec();
}

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[stella1016]

Thanks!
That is exactly what I am looking for!