Questions about programming for and on Ubuntu.

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0
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2answers
48 views

My CPU usage is unnecessarily high while creating a C program in Ubuntu 14.10

I have an MSI GE60 2PC Apache model Gamebook. I also use it for my collage work. It runs Ubuntu 14.10. I have a CPU usage problem while creating a ".c" file. I use the default text editor; while I ...
1
vote
0answers
11 views

Gtk.HeaderBar not appearing in Python Application [on hold]

I've created a Python Application to which I'd like to add a Gtk.HeaderBar. However, when I try to run the code below, the window opens with no titlebar whatsoever. I have the code below: class ...
-4
votes
0answers
25 views

What does Ubuntu can or cannot do in terms of programming compared to the other Linux OS? [on hold]

Im getting my first computer science class next term and I do not have a good background on Linux OS.
-2
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0answers
20 views

CImg.h with Eclipse when debugging with this error ! please help? [on hold]

18:03:37 **** Incremental Build of configuration Debug for project testImage **** make all Building target: testImage Invoking: GCC C++ Linker g++ -o "testImage" ./test.o ./test.o: In function ...
0
votes
1answer
20 views

Extending Python lightblue module to use multiple bluetooth dongles

I'm using the lightblue module and pybluez to send files via bluetooth to obex protocol object push. But I need to use multiple bluetooth dongles (3 and more) to send files to multiple devices (20 and ...
0
votes
0answers
12 views

Using C++ in Ubuntu [duplicate]

I'm new to Ubuntu and and want to know how to run and compile programs in C++ Can i get a step by step detail please? I did try once but got only a blank thing nothing else i really want to use this ...
1
vote
1answer
32 views

How do I open C libraries and functions implementations?

I am having a problem that I cannot browse the header files /libraries to get the implementation of the C functions like mssget, msgsnd, shmat etc. How should I open these files?
0
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0answers
27 views

Network Manager gui link to terminal network config listing 14.04

I am using 14.04. I am trying to figure out how the connections listed in Network Manager's GUI: is connected to the files found in /etc/NetworkManager/system-connections/ ...
-1
votes
1answer
37 views

Are QStrings mutable? [closed]

In python; strings are not mutable as far as I know. To change a string in python, you would have to create a new object. Is this the same for QString?
0
votes
1answer
16 views

How do you return a list of the current project folders and files of your current project in QtCreator?

I think Qt must have this, because QtCreator has a list on its sidebar: Ideally I am just looking for a Qt function that will just return this list. Thanks.
1
vote
0answers
26 views

How do I develop for the Unity Control Center? [duplicate]

I found no source on how to create an entry in Unity Control Center. Is it even possible? What languages can I use? Edit: I'm searching for a method to have an entry appear in the Unity Control ...
0
votes
1answer
18 views

Can't find window builder on ubuntu

I am searching for window builder in eclipse.
2
votes
1answer
379 views

How to automatically restart an application for using too much RAM or CPU

I'm going to be running an Ubuntu 14.04 LTS server that will have a few Garry's Mod (Half-life 2/Source based) servers running on it. I don't want any one of those servers getting out of line by ...
1
vote
1answer
56 views

Assembly: TASM illegal command

Few weeks ago I asked for a similar TASM compiler, but seems that the instructor wants nothing but TASM. So I installed this using wine in DosBox. But no matter what my code is, when I run tasm ...
0
votes
0answers
9 views

Extension to submit problem codes on Hackerearth, Codechef from editor

Is there any extension available in any editor to submit code directly from editor to the competitive programming sites like codechef, hackerearth, hackerrank, topcoder, codeforces etc.?
1
vote
0answers
32 views

how to encode a shell script so others can run it but they can not read it

I want to encode a script, so others can run that script to get relevant result but when they run command cat it should throw output in encoded format.
0
votes
0answers
31 views

Ubuntu 14.04 Color Variable Troubles

I have tried all the links from the first 2 pages of google searches regarding editting the LS_COLORS variable, but I can't get it to work as expected. I want all my source code files to show up as ...
7
votes
1answer
549 views

Assembler similar to TASM on Ubuntu

I have an HP computer running 64-bit Ubuntu, so you could say Intel. I'm taking a assembly course at the university. The instructor wants us to use TASM. While it may run on wine I'm not sure about ...
-2
votes
1answer
31 views

Make operating system with Ubuntu? [duplicate]

I just had a quick question is it true that you can make your own operating system with Ubuntu and if so where can i go to learn how to make my own operating system with Ubuntu. Thanks
1
vote
0answers
22 views

Scilab installation tcl tk configure not working

I am installing Scilab 4.1.2 in Ubuntu 12.04 manually. I entered the folder and pressed ./configure but after some steps it shows configure: error: header file tcl.h has been found for 8.4* but ...
2
votes
0answers
55 views

How can I detect screen rotation with QML

I've been trying to create a Ubuntu QML application, but when I rotate my screen while it is running on my tablet, the header is semitransparent and the content below is exceeding the screen's height ...
0
votes
0answers
13 views

How do I Resolve a dependency issue with Ubuntu SDK, chroot, CMakelists, and the Emulator?

I am trying to build lp:ubuntu-filemanager-app on the ubuntu sdk for running on the emulator. The libraries I need are installed on my system, and in the phablet-shell. I can run the application in ...
2
votes
0answers
24 views

Is there a Bool or Flag you can use in QML to determine whether a phone is running the application?

For example: Text { text: isPhone ? "this application is running on a phone" : "this application is not running on a phone" }
1
vote
2answers
61 views

What is the objectName: property in QML, why is it needed, and how is it different than the id: property?

What is the objectName: property in QML? Which components have this property? Why is it needed? How is it different than the id: property? Why can't I just use the id: property instead?
0
votes
1answer
58 views

segmentation fault on 14.04, but did not fail on 10.04

I'm using ubuntu 14.04 64bit LTS and I'm writing image processing program in C. When I'm runing any programe in terminal it shows segmentation fault (core dumped). The same program run nicely in ...
21
votes
1answer
2k views

Would Android apps be able to run in Ubuntu touch natively?

I'm wondering why Android apps won't be able to be run natively on Ubuntu Touch. I mean, isn't it all just Linux?
0
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0answers
19 views

Ubuntu hangs while coding

Ubuntu 14.04 LTS, x64, 4GB RAM. When I launch Android Studio+ Intellij Idea it runs smooth, but at some point it just hangs to death. Especially if I will open 2-4 pages in google chrome, or start my ...
0
votes
0answers
55 views

If I want to test apps on the phone emulator, what kind of emulator do I have to build?

It recomends either i386, but there is an arm version as well; what is the difference? I tried running my app on the i386, but I got this error: 20:31:27: Running steps for project ...
2
votes
1answer
22 views

How do open a link with a button

I would like to click a button in my QML app and have it open a link in the browser on the device.
1
vote
1answer
31 views

How do you determine the combined width of the components in a Row {}?

How do you determine the combined width of the components in a Row {}? The width of the row itself will not work, as I need to set its spacing:, and using this property will create a loop error. It ...
1
vote
1answer
83 views

How do you round numbers in qml to two decimal places?

I have these ridiculously long real numbers such as 33.088117576394794, and I am trying to convert them to doubles (Two decimal places). So in this case, I want 33.09. How do you do this in QML?
0
votes
0answers
10 views

Page Stack Component Depth to always remain visible?

Is this possible? Say you have a depth of 5 tabs, They appear and disappear as you click the header. I want them to always remain visible.
1
vote
1answer
70 views

Can you do dictionaries in qml?

So for example: Item { id: sylvainLikesAnsweringMyQuestions property var myDict: {[key,value],[anotherKey,anotherValue]} }
1
vote
1answer
318 views

Why can't I use conio.h or ncurses.h?

I am new user to Ubuntu. I wrote a simple program in C. When I try to compile it to use conio.h, the compiler gives me fatal error. So I tried by ncurses.h, but still I am getting same error.
4
votes
3answers
227 views

How do you check if a property is undefined in qml?

How do you check if a property is undefined in qml? This is what I am trying to do: Button { id: myButton text: if (text === "undefined"){"default text"} }
2
votes
1answer
39 views

How to make sure a Row {} or Column {} does not contract when an item's visible: property is set to false?

This is a question about good coding practice with QML: How can I make sure that a Row {} or Column {} does not contract when one of its Item's visible: property is set to false? The current work ...
1
vote
1answer
88 views

How do you use Q_INVOKABLE to access c++ functions in QML?

I am looking for the most simple and straightforward example. For my part; .h public: KTerminalDisplay(QQuickItem *parent = 0); ~KTerminalDisplay(); Q_INVOKABLE void setFontStyle(QString & s); ...
2
votes
1answer
22 views

What is the difference between bzr lp-propose and bzr lp-propose-merge?

What is the difference between bzr lp-propose and bzr lp-propose-merge? Do I have to provide the branch I wish to propose a merge to, or does it assume it for me?
-1
votes
1answer
19 views

Program an applications print files [closed]

i wanna make an app that get files and print it.how can i do that ? with which program language ? this program is like to get file from any protocol and read last line of it and print it ...
0
votes
1answer
62 views

What is the full form of awk?

What is the full form of awk? I tried googling. Google doesn't answer me.
3
votes
4answers
430 views

making a bash script executable programatically

I need to create a bash script to create and mount a drive. So, two simple commands. Both "work" when entered at the command line. The script is created and executed every time a normal user logs in, ...
0
votes
1answer
85 views

Is there a programmable way to tell if the screen is locked with the new Unity interface?

I have lots of stuff in my crontab, including some that talks to my screen. If I'm not there for it to be notifying, I don't really want it to run. Is there a way I can check to see if the computer ...
1
vote
1answer
36 views

(QML) What does the “?” do in defining properties?

Popey { working: visible ? 100 } What does that "?" indicate in this example?
0
votes
0answers
38 views

Anybody know how to delete a file from QML without resorting to a C++ plugin?

Anybody know how to delete a file from QML without resorting to a C++ plugin? It should be possible to do in the folder that my app uses for data storage.
1
vote
1answer
71 views

Should we be upgrading away from ubuntu.components 0.1?

Should we be upgrading away from ubuntu.components 0.1 in our ubuntu applications? I am working on one of the core apps, and many were unsure as to whether the current library (1.1 I think) offers ...
1
vote
0answers
17 views

In the Ubuntu SDK, is there a way to view all global variables in current project?

In the Ubuntu SDK, is there a way to view all global variables in current project? Working on one of the core apps, and I want to figure out if any global variables have been defined for the current ...
0
votes
0answers
20 views

(QML) Which components do I want to invoke for notifcations and dialogues on Ubuntu Touch?

Now of course I can make any sort of notification or dialogue I want. However, I want to know what the Ubuntu Style guide recommends for notifications and dialogues. A notifcation could be: Song ...
1
vote
2answers
79 views

Is there a better way to programatically get the networking parameters from Linux OS?

I am writing some scripts which need to programatically get a lot of networking parameters from Linux OS. For example, the names of all network interfaces, ip address, netmask, MAC address. For ...
2
votes
1answer
60 views

How do you equally space out elements in a Row?

Row{ width: parent.width spacing: ???? Checkbox{} Checkbox{} Checkbox{} Checkbox{} } So just to be clear, the checkboxes should be spaced in such a manner that however wide ...
2
votes
0answers
227 views

Oculus Rift with Antichamber on Ubuntu 14.04 [closed]

Antichamber runs great on linux (steam version). But it is not playable with the Oculus Rift at this point. The issues are: 1) no headtracking 2) graphics are not being split and distorted by Oculus ...