Hi Christian,

On 11/16/2015 01:14 PM, Christian Prochaska wrote:
Hello Humberto,

On 11/12/2015 11:17 PM, Humberto López León wrote:

I also tried two more examples of qt5_gui module (qtbase/examples/gui), 
the rasterwindow and analogclock. To include these examples in the 
compilation mechanism of Genode I relied on the example 
"qt5_openglwindow". Both examples compiled correctly, but do not run as 
they should. I tried it on Qemu with pbxa9 using the foc  kernel.

could you provide a Genode branch on github or a patch with the changes
you made, so I can easily reproduce the problem?

Christian
First I want to explain that I am not an expert in application development QT, nor do I have much experience in working with the framework Genode, but I'm interested in checking the proper functioning of Qt in Genode.

I continued examining the trace of the error in the execution of example qt5_rasterwindow.
This is my partial conclusion of the problem:

When the rasterwindow application (defined in qtbase/examples/gui/rasterwindow/rasterwindow.cpp)  run the 108 line (QPaintDevice *device = m_backingStore->paintDevice()), this ends calling the function QPaintDevice *QNitpickerWindowSurface::paintDevice() (defined in repos/libports/src/lib/qt5/qtbase/src/plugins/platforms/nitpicker/qnitpickerwindowsurface.cpp).  This implementation of  paintDevice() function fails in the 62 line (QRect geo = _platform_window->geometry();).

I do not know much about the integration between Nitpicker of Genode and Qt. I apologize for my lack of technical language.

Any idea what is happening?
Thank you for the cooperation.


Sincerely
Humberto.