Qt::X11BypassWindowManagerHint causing issues on QT5.X

crubel

We have QMainWindow that we require to be ONTOP at all times on Linux. Following the QT doc we have setup the window flags as follows:

QMainWindow(parent, Qt::WindowStaysOnTopHint | Qt::X11BypassWindowManagerHint| Qt::FramelessWindowHint )

While this does put the window ontop, the data inside the window does not update it stays frozen on the info put there at startup. Removal of the Qt::X11BypassWindowManagerHint allows the window to operate normally, it just does not stay ontop of all other Qt/X windows. On QT versions prior to QT5 this was working as expected.

In the case of this window the window contains an OpenSceneGraph viewerWidget setup.

MainWindow::MainWindow(QWidget *parent) :
// QMainWindow(parent, Qt::WindowStaysOnTopHint | Qt::X11BypassWindowManagerHint| Qt::FramelessWindowHint ),
QMainWindow(parent, Qt::WindowStaysOnTopHint | Qt::FramelessWindowHint ),
ui(new Ui::MainWindow)
{
ui->setupUi(this);

run_app = 0;
init_count = false;
pod_on = false;

QShortcut *shortcut = new QShortcut(QKeySequence("F4"), this);
connect(shortcut, SIGNAL(activated()), this, SLOT(close()));

_view = ui->graphic_view->add("POD HD");

if( QFileInfo( ConvertPath("POD_HD_Config")+"pod_hd_config.ini" ).exists() )
    readConfig();

connect(&_timer, SIGNAL(timeout()), this, SLOT(update()));
_timer.start(16);

}
...

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

QApplication a(argc, argv);
MainWindow w;
w.show();

return a.exec&#40;&#41;;

}

Any hints would be appreciated...I can post more code if needed, but the code is property of our
customer so I can only post snippets until I get a small selfcontained app created.

Thank you,

Curtis Rubel
crubel@compro.net