how to set qt5 UI to display on a Specified layer E.g: fb0~fbN on tx1

tx1 : /dev/fb0
tx1 has only one layer fb0.
but I has to display the video and qt5 UI on different layers.
so any one has ideas?

Hi alex_wang,

I know little about qt5 UI. Could you explain your purpose first??

Hi alex_wang,

I think QT also provides some method that can render the monitor without directly writing to framebuffer.

As you can see in the qt5 doc,

fb=/dev/fbN - Specifies the framebuffer devices. On multiple display setups this typically allows running the application on different displays. For the time being there is no way to use multiple framebuffers from one Qt application.

Mult-framebuffer is setup for multiple display.