Old program

[joker_hr]

it works
thank you

[joker_hr]

this is great, old program(with minor changes) just in two days becomes new program.
this Qt is great work!

[SGaist]

You should just make a correction: connect your c7 updateUI signal in your MainWindow's constructor rather than in c7's constructor. It will make c7 completely independent of the GUI on top of it.

Also from a pure reading point of view, you should add the missing emit keyword, it will make your code easier to understand

[joker_hr]

what I need to run application on platform with just framebuffer, I am little confused here. Is there some sort Qt server like X server or do I need install framework on target machine?

[SGaist]

What version of Qt are you using ?

[joker_hr]

it is standard package of fedora 19, version 3.0

[SGaist]

I meant for your target

[joker_hr]

I am not using anything yet :)
question
For using with X11 I will install * Qt libraries 4.8.5 for Linux/X11 *
and for using directly to framebuffer i will install Qt libraries 4.8.5 for embedded Linux?
How applications behave with static build on linux targets?

[SGaist]

Pretty much it's that yes. Depending on what you will run on your target, you might need to compile Qt yourself.

I don't exactly understand your question about static application behavior

[joker_hr]

I thought about static compiling of executable file that has all necessary libs inside.

[SGaist]

The application behavior won't change because of the build type. However you should first check that you can use a static build, there are licenses implication with it.