On Thu, Jul 28, 2016, at 02:37 PM, Denis Shienkov wrote: > So, my questions is: is there are any way to setup > Qt::WA_OpaquePaintEvent > and/or > Qt::WA_NoSystemBackground in Quck2? Or, maybe is it possible to use > another > tricks?
Ah, the memories. Good times. Unfortunately for you, QQ2 is a very different beast. Rendering is done using OpenGL (unless you're using a different scenegraph backend, but that's probably not very likely right now) and then pushed to the windowing system of your choice using a QPA plugin via QWindow (how exactly this is done, of course, depends on your windowing system & the QPA plugin you are using). If you're seeing flickering, this means you have four possibilities, ranked in no real order: 1) OpenGL driver bug (the world is full of them..) 2) Application-side bug (make sure you don't have anything that could be flickering in your application). Using an overlay to debug item positions (QSG_VISUALIZE=overdraw) could be handy for trying to rule this out, as if it is specific to the application, you'd see which part of the application is flickering - and the overlay wouldn't be affected. 3) A problem or bug with the QPA plugin you're using (you mention embedded, so I'm going to guess you're using eglfs or something like that) 4) Relatedly, a problem or bug with the windowing system (particularly if you're doing something rather custom. If you're using e.g. OS X or some other mainstream setup though, this is less likely) -- Robin Burchell ro...@viroteck.net _______________________________________________ Development mailing list Development@qt-project.org http://lists.qt-project.org/mailman/listinfo/development