I'm trying to create Qt application with Cef browser working on Linux (Debian Wheezy) Versions: Qt 5.5, Cef 1547 Basically, I have QWidget with following browser initialization code: CefwindowInfo info; QWindow* win = new QWindow(); this->layout()->addWidget(QWidget::createWindowContainer(win)); info.SetAsChild((CefWindowHandle)win->winId()); CefBrowserHost::CreateBrowser(info, ...); This code causes Segmentation fault exception with following callstack 0> g_type_check_instance_cast 1> CefBrowserHostImpl::PlatformCreateWindow() 2> ?? If I comment out the line with info.SetAsChild(..) , everything works as expected save that Cef is launched in separate window, while I need it to be integrated in my Qt application. Any ideas what am I doing wrong?

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Qt+Cef integration on Linux

Solved General and Desktop

21 Posts 5 Posters 10.4k Views

A antofik

Actually, I've managed to make it work.
Just in case, if someone will need it in future:

  GtkWidget* gtkWin = gtk_window_new(GTK_WINDOW_TOPLEVEL);
  GtkWidget* parentView = gtk_vbox_new(FALSE, 0);
  GtkContainer* container = (GTK_CONTAINER(gtkWin));
  gtk_container_add(container, parentView);
  gtk_window_set_position(GTK_WINDOW(gtkWin), GTK_WIN_POS_CENTER);
  gtk_widget_show_all(GTK_WIDGET(gtkWin));

  GdkWindow* w = gtk_widget_get_window(parentView);
  XID t = gdk_x11_drawable_get_xid(w);

  WId wid = (WId) t;
  QWindow* win = QWindow::fromWinId(wid);
  setLayout(new QGridLayout());
  QWidget* widget = QWidget::createWindowContainer(win);
  this->layout()->addWidget(widget);

  info.SetAsChild(parentView);

Basically, I've created my own GTK window, passed the reference on this window to CEF, and placed it into Qt widget using QWindow::fromWinId().

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#21

@antofik
Dear antofix,
Could you send me a complete example. I'm try the method but still not working with qt 5.5

thanks