Thanks Rutledge. My device is an embedded device whose primary display is LCD. It also has a HDMI port, through which a HDMI monitor is connected.
If my understanding is correct, by setting the screen in c++ (for QQuickview), my application will be visible on the HDMI screen. But, I actually want my application to be displayed on one screen(LCD) and only the video output should go to the second screen (HDMI). On Wed, Jun 25, 2014 at 12:08 PM, Rutledge Shawn <shawn.rutle...@digia.com> wrote: > > On 25 Jun 2014, at 07:26, Vinoth Kumar <vinoth.k.ku...@gmail.com> wrote: > > > Hi, > > > > I have 2 different displays (1 LCD and 1 HDMI) connected to my device. > Is it possible in Qt to direct the output of my video playback to a > particular display. Does QtMultimedia have any provision for this? > > There are a couple of examples which iterate the QScreen objects and put > windows on each of them: > > qtbase/examples/opengl/hellowindow is a low-level one, not using either > widgets or Qt Quick > > qtbase/tests/manual/qscreen puts up widget-based windows on each screen, > showing information about the screen. You should probably test it to see > what happens on your system. > > If you are writing your app with Qt Quick, we don’t have declarative API > for putting windows onto particular screens yet, so you will need to do > this in C++, for example in main() where you create the QQuickView or > QQmlApplicationEngine. QQuickView inherits QWindow, so you should be able > to set the screen and also set the geometry of the window to that screen’s > geometry() before showing the window, like the hellowindow example does. > The reason is that in a typical multi-monitor desktop environment, the > user controls the arrangement of the monitors into a virtual desktop, so > it’s not enough to define which screen you want the window to be associated > with. The window could “belong” to one screen but actually be overlapping > onto several screens at the same time. And on a desktop application you > don’t usually need to control which screen the window goes to anyway; you > let the user drag it there. So controlling which screen it goes to is > possible but usually needs both steps: setting the screen and setting the > geometry. > > What kind of device are you developing for? > >
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