[Gambas-user] Programming beginner: first program won't run?

[Doriano Blengino]

phohammer ha scritto:
> Ok, I tried copying every thing over to my project from the "Object" example.
> I copied every single 
> thing from the project tree. And I deleted all of my stuff from my project,
> essentially making an "Object" project
> of my own that I could edit. It still wouldn't run.
>
> I tried running the IDE from a terminal and there was no output into the
> terminal whether the project ran (with 
> "Object") or it didn't (with mine). 
>
> On the having qt on my system, I am not too sure but here is what I have
> installed that is qt related:  http://www.nabble.com/file/p23124849/qt.png
> qt.png . 
> I'm not sure how that could be a problem since I have seen a project run 
> successfully on my system (the "Object" example.)
>
> I have a question here though, maybe this is my problem. What project type
> should I be using ( http://www.nabble.com/file/p23124849/whichtype.png
> whichtype.png )?
>  I've been using the "Graphical Application" thus far.
>   
I assume you have QT installed, because gambas would'nt work without. 
Graphical application should be ok.
No compilation errors - ok.
Next, try to understand, when you press GO (F5?), if the program really 
runs or not. While the program "seems" to run, you can confirm by using 
a terminal and the ps(1) command: on my system turns out:

 9612 ?        S      0:02 gbr2 /usr/bin/gambas2
 9619 ?        S      0:00 /usr/bin/gbx2 -g -f 
/root/programmi/gambas/prove/Parted --

You see "gbr2 ...gambas2", which is the IDE, and "gbx2 ...Parted" which 
is the program.
If your program does'nt show, then it is not running - try to execute it 
step by step to see if terminates instead of opening a window and 
entering the idle loop.
If it runs, look in the taskbar, where you see open 
windows/applications. If a button is there, then your program has an 
open window somewhere outside the desktop (window manager issue). You 
can try to pull it inside a desktop by using the contestual menu.

If the program runs, but no window is shown, check with "lsof -p 
<your_program_pid>"; on my system, at the end, it shows:

gbx2    9619 root   21r   REG       3,70   14625  35686 
/usr/lib/gambas2/gb.qt.gambas
gbx2    9619 root   22r   REG       3,70 1033214  35701 
/usr/lib/gambas2/gb.form.gambas

showing the the program actually uses QT (and many more information). 
There other tools to see if your program really opened a window, but 
things get more complicated... it is easier to see what is wrong in the 
source.

Anyway, make a source tarball (Project->Create->Source package -- or 
something like that) and send the .tar.gz; this will let other users on 
this list to examine your project to find something you missed.

Regards,

-- 
Doriano Blengino

"Listen twice before you speak.
This is why we have two ears, but only one mouth."