How to get output Screen

Arasu · wrote on 27 Mar 2015, 09:58

I have to installed QT creator ver 4.8 and i have one project, it developed QT creator ver 4.5 in Linux platform on 2008. Now i want to update some changes for feature enhancement. i had to try to compile and run the project successfully, but i could't get the output screen. the (.pro) file generated only the .exe file only. How can i get the resultant output UI screen, what will i made for that.

mcosta · wrote on 27 Mar 2015, 11:30

Hi,

if you mean print the qDebug() output to the console you should add

CONFIG += console

to your .pro file

Arasu · wrote on 27 Mar 2015, 12:39

Here is the error,

b77ea000-b77eb000 r--p 002c0000 08:01 1966228 /usr/lib/locale/locale-archive
b77eb000-b77ed000 rw-p 00000000 00:00 0
bfaa8000-bfac9000 rw-p 00000000 00:00 0 [stack]
The program has unexpectedly finished.
/home/dyansys/Desktop/ECScope/ecg12i-build-desktop-Qt_4_8_1_in_PATH__System__Release/ecg12i exited with code 0

can you advice me

mcosta · 27 Mar 2015, 12:58

Which plaftorm??

Arasu · M mcosta 27 Mar 2015, 12:43

@mcosta Linux using C++

Arasu · wrote on 27 Mar 2015, 13:04

Compile Output

18:04:43: Running build steps for project ecg12i...
18:04:43: Configuration unchanged, skipping qmake step.
18:04:43: Starting: "/usr/bin/make" -w
make: Entering directory /home/dyansys/Desktop/ECScope/ecg12i-build-desktop-Qt_4_8_1_in_PATH__System__Release' make: Nothing to be done for first'.
make: Leaving directory `/home/dyansys/Desktop/ECScope/ecg12i-build-desktop-Qt_4_8_1_in_PATH__System__Release'
18:04:43: The process "/usr/bin/make" exited normally.

mcosta · wrote on 27 Mar 2015, 13:08

sorry, I understood you was on Windows (CONFIG += console works on it)

@Arasu said:

How can i get the resultant output UI screen, what will i made for that.

What means??

Arasu · wrote on 27 Mar 2015, 13:48

I couldn't get the User Interface screen, but it had to create .exe file direcly

Arasu · wrote on 27 Mar 2015, 13:52

i am thinking that, the code which i'm having will be compatible for both windows and Linux(ubuntu). right?

mcosta · wrote on 27 Mar 2015, 13:53

Depends on you code?
Is a 100% Qt code??

Arasu · 27 Mar 2015, 17:54

Actually, to my knowledge, the previous developers have developed the code using QtCreator only. apart from that how can i make sure it is completely Qt COde?

p3c0 · A Arasu 27 Mar 2015, 13:57

@Arasu Looking at this output

b77ea000-b77eb000 r--p 002c0000 08:01 1966228 /usr/lib/locale/locale-archive
b77eb000-b77ed000 rw-p 00000000 00:00 0
bfaa8000-bfac9000 rw-p 00000000 00:00 0 [stack]
The program has unexpectedly finished.
/home/dyansys/Desktop/ECScope/ecg12i-build-desktop-Qt_4_8_1_in_PATH__System__Release/ecg12i exited with code 0

The code does compiles properly but seems it crashes at some point during runtime. Something related to locale perhaps. You will need to debug it.

Arasu · 30 Mar 2015, 06:06

Thank you!

Shall i know how to debug the code in QT creator? Why because previously the project created in QT creator version 4.3, but now i am using version 4.8, this version deprecated some of the default methods.

p3c0 · A Arasu 30 Mar 2015, 05:32

@Arasu Using QtCreator see this and some info here.
Also if you know which methods are deprecated you can replace them with appropriate one.

Arasu · 30 Mar 2015, 06:39

@p3c0 Can you give some example code for this qDebug() ?

p3c0 · A Arasu 30 Mar 2015, 06:34

@Arasu Its in the docs. Check this link.

Arasu · 30 Mar 2015, 06:45

Thank you!

Is this for Linux using C++ ah?

p3c0 · A Arasu 30 Mar 2015, 06:41

@Arasu qDebug() will work on all platforms since it is a Qt API.
And using QtCreator you will have to use valgrind for debugging. It comes for Linux.

Arasu · 30 Mar 2015, 10:21

Now im trying both linux and windows, but both environment i am getting same issue, can you suggest for windows.

p3c0 · A Arasu 30 Mar 2015, 10:18

@Arasu If it is the same issue then if you solve it for one platform then same will be reflected for other platforms too. I would suggest you to solve it for your primary OS i.e Linux.