Writing applications for Ubuntu (including Ubuntu Touch) and questions about the application submission process to the Ubuntu Software Center. This covers both open source and commercial applications.

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Developing Mir GUI on Ubuntu Server

The question is: How would I develop a C++ GUI application using Mir on Ubuntu server? I've installed all the packages that relate to Mir: mir-demos, unity-system-compositor, libunity-mir-dev, ...
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1answer
39 views

Button Click not recognised in Quickly

I am running quickly 12.80.1-0ubuntu2 and for some reason the apps that I generate no longer recognise button clicks. A few weeks ago I created an application using the ubuntu-application template ...
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1answer
74 views

Where does dm crypt keeps crypt list?

If we enable encryption via cryptsetup tool on linux. Where does it keeps the crypt list/ encryption disk sector information etc ? Is it resides inside the LUKS header or device mapper kernel itself ...
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0answers
16 views

revkit installation [duplicate]

so i need to install this software called revkit on ubuntu 12.10. below are the instructions as per the manual: Requirements RevKit needs a couple of packages which can easily be installed with the ...
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3answers
169 views

Ubuntu Quickly: How do I set a button to launch a specific Ubuntu Application

I'm very new to linux and I don't know very much. I was creating my own application with Quickly, and I wanted to have a button which launches the Hardware Information application "Hardinfo". I'm very ...
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1answer
81 views

How to package a net-beans java project for Ubuntu

I'm in final year of my b.tech, for project I have created an multilingual dictionary in Java (net beans 6.7.1) in which we can search words meaning, its synonyms, antonyms and an example, or if its ...
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2answers
368 views

How to Integrate of Python 2.7.4 in Qt 5.0

I have Python 2.7.4 installed,Qt 5.0 installed,PyQt 4.10.4.tar.gz and sip 4.15.5.tar.gz. How can I integrate Python with my Qt?
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1answer
123 views

Can't get buttons to work wx.python (ubuntu 12.04 LTS )

try: import wx except ImportError: print 'Module not found' class Frame(wx.Frame): def __init__(parent,id ): wx.Frame.__init__(self,parent,id,) panel = wx.Panel(self) ...
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28 views

Imports for executing system commands? [duplicate]

QML at the moment lacks the ability to execute basic system commands. What libraries or functions can be imported to add this functionality to a .qml file?
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1answer
54 views

Installation failed for API

I'm developing an app for sending OSC messages working through the outlet port 4444 and I am using a C API call Liblo. Project page: http://liblo.sourceforge.net Normal install it by running the ...
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1answer
21 views

Ubuntu apps development - how to communicate betwen 2 pages

On one Page I have displayed ListView and on child Page I creating new records. When the child Page is Closed I would like to refresh the ListView. Is there some Signel which inform me when page get ...
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1answer
79 views

I get the following errors when I try to install the Ubuntu SDK (ubuntu app development kit)

I use Ubuntu 12.04. I followed the steps given here . 1)When I try to execute the first step " sudo add-apt-repository ppa:ubuntu-sdk-team/ppa && sudo apt-get update && sudo apt-get ...
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2answers
696 views

How to build gtkparasite

i'm not able to build gtkparasite when i run: ./autogen.sh i'm get this error checking for GTK... no configure: error: Package requirements (gtk+-3.0 >= 3.10.0 gtksourceview-3.0) were not met: ...
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1answer
29 views

where do I get the Eclipse CDT

I have Ubuntu 13.10 and Eclipse 3.8 from the Ubuntu Software Center. Where do I get a compatible Eclipse CDT? I went to the Eclipse web site, but it did not seem to provide a CDT for Eclpise 3.8. ...
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0answers
33 views

QML Ubuntu SDK : How to insert Video element [duplicate]

Hello everybody! I am learning Qml and using the Ubuntu SDK tool in addition to QML elements. I saw on some sites that you can insert videos with the Video element by importing Qt 4.7 and ...
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2answers
81 views

qml file and app.js not found

I am a newbie in ubuntu app development. I am going through the tutorials in developer.ubuntu.com. The thing is when I created a sample ubuntu-htmui project, no .qml file is being created as explained ...
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1answer
115 views

Will a netbook have sufficient specs for Ubuntu Touch development?

I'm interested in getting a cheap but good quality laptop to use among other things, for Ubuntu Touch development. I see the ASUS 1015E listed on the Ubuntu website, so I know it is compatible with ...
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0answers
103 views

Ubuntu Slower than Debian on 512 MB RAM

So, I am using Ubuntu 12.04 LTS. My System Details are in the screenshot. My Ubuntu is very slow for me, I mean that when I try to open any application, it takes 3-4 seconds but Debian took 1 sec. ...
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1answer
108 views

QtCreator doesn't let me create Ubuntu Touch apps!

I've gone through the instructions for installing the SDK found here: http://developer.ubuntu.com/apps/create/get-the-sdk/ using Xubuntu 12.04. Everything went well except, for some reason, QtCreator ...
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1answer
601 views

Gtk: Webkit WebView C++ (can't load url + awkward terminal output)

I am trying to include a webkit webview within my c++ application. My project uses Glade ui, and I embedded webview into a scrolled window. What I do not understand at all is this awkward output + ...
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0answers
29 views

simple frontend with qml (for n2n client) [duplicate]

I am trying to write a simple qml application being a n2n frontend of the client and following the tutorial. This application is first intended for the desktop, but if it can also be used as a phone ...
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1answer
86 views

Is there a way to attach a pygame window to glade window in quickly?

I am trying to develop a game so that when i press a button which is created using glade window i should be able to run the pygame window i have succeeded so far but the pygame window opens separately ...
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0answers
27 views

How to develop Ubuntu apps (2013 edition) [duplicate]

I know this question has come up before, but the answers can quickly go out of date. No pun intended. ;) Previously, it was the "quickly" tool to build apps. Now, developer.ubuntu.com points you to ...
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1answer
58 views

QT Creator - Testing Code

I am doing the tutorial 'CurrencyConverter'. But I am not able to see the output. The code compiles fine. But the mainview after opening just shows blank window. What might be the issue?
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2answers
76 views

What are the plataforms/devices Ubuntu touch will run from? [duplicate]

Having been a first day contributor to Edge (shame it didn't get there) I appreciate phones & tablets running Ubuntu is the aim, for next year. In the meantime, can you please clarify what ...
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1answer
413 views

Receiving drag events in a WebView in a QML application

I'm working on an app using QML and the Ubuntu SDK. One of the Pages contains a WebView. While the WebView receives click events just fine, it doesn't receive drag events, as I would like it to. I ...
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1answer
229 views

Qt library: linked by ld.so.conf.d/qt.conf but were not found by installation package

I have problem while installing the program rthlibs. I have linked the library of Qt5.1.0 with the standard library via this command: Code: sudo sh -c "echo /usr/local/Qt5.1.0/5.1.0/gcc_64/lib > ...
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1answer
39 views

PPA packages versions

I am developing an open-source Java application and want to distribute it for Ubuntu (12.04+) users through a PPA. My app depends on a Trove4j library v3+, but there is only 2.1 version of this ...
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1answer
239 views

I want to create .dmg file from my source file on ubuntu so that I can distribute it on mac?

Is there a way to create .dmg file from my source file, from command line, or is there any software available which will allow me to roll out my software on mac OS as well? Thanks in advance.
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1answer
137 views

How can I get user/system information in a QML mobile app?

In this specific case, I'd like to use the full name of the currently logged-in user in a QML app (not the logname). As far as I found out, system calls can not yet be used (and would not be an ...
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1answer
62 views

Different toolbar icons depending on active tab

i am attempting to write a small email client with local storage for ubuntu touch. I was wondering if there is a way for me to construct my toobar such that i only have to build one toolbar (rather ...
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1answer
50 views

development desktop in ubuntu 12.04 [duplicate]

how do I create programs for ubuntu, with the same ease that I have with visual studio express on windows?
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0answers
31 views

How can I write apps with Java for Ubuntu Phone? [duplicate]

How can I write apps with Java for Ubuntu Phone? I am waiting this operating system and I want to be the one of those that will write apps for this new operating system. Best regards. Nodar
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1answer
336 views

How to use Ubuntu QML Dialog or other Popup without any buttons?

I am trying to make a modal popup where all there is is a progress bar, and when the progress bar is full it automatically closes, Dialog and the other popups don't seem to even show unless you set ...
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2answers
50 views

Can I download Ubuntu for my Galaxy S lll Fido?

I dont like the Google and all other apps I have with my phone. I need a OS for my phone that I can surf the net, make calls, use a kind of OpenOffice app, have a contact list, etc. Thank you.
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1answer
41 views

Clickable emails in Label

In my app (ite-missa-est) and in the sudoku-app we are wondering how to make an email clickable as a URL link is. In a label the code for a link is: Label { //TRANSLATORS: here is the ...
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0answers
53 views

Could not create a currency converter phone app [duplicate]

Just follow "http://developer.ubuntu.com/resources/tutorials/getting-started/currency-converter-phone-app/" to new a project. The step is bellow: The main view We’ll start off with a minimum QML ...
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1answer
194 views

How do I use qtmultimedia in qml? [duplicate]

The link here says that I should use qtmultimedia 5.0. Is there a tutorial or example that I can use that shows how to do it?
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1answer
1k views

Where to find Qt 5 downloaded pack in my Ubuntu 13.04 (Raring Ringtail)

I'm trying to locate the Qt 5 package in my Ubuntu 13.04 OS (HP Compaq 6910) following the instructions given in Get started where it says: Alternatively, for those using Ubuntu 13.04 or a ...
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0answers
18 views

Changing text on a popover [duplicate]

I am trying with no success to show a popover with a different text than the one it was declared initially. Here is a minimal example: what I would need is to set the text property of the message ...
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1answer
35 views

Ubuntu provides Certificates?

I want to know if Ubuntu provides certificates to commercial applications? Example: "Appname Certified by Ubuntu"
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0answers
20 views

Whats a good way to learn how to make apps? [duplicate]

im fairly new to the Ubuntu distro, i was just wondering how to make apps. I would really like to expand my knowledge in this area. Any info will help, thank you!
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1answer
433 views

Can I use the Ubuntu SDK Preview in Linux Mint?

Can I use Linux Mint to develop applications for Ubuntu Touch with the Ubuntu SDK preview?
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1answer
254 views

How to add Password encryption

I have an encryption app that just encrypts a string and then can decrypt also.. But how can I make it so the user sets a password and the other person has to put in that password to decrypt the ...
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1answer
153 views

Changes to the KDE library prevent compiz 0.9.7.12 from compiling

I have been been following a tutorial on modifying existing compiz plugins, but run into the following error when compiling compiz-0.9.7.12: In file included from ...
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1answer
531 views

GNU Toolchain required on Ubuntu 13.04 - for offline PC

I am very new to this site. Recently I have successfully installed Ubuntu-13.04-32Bit-Desktop version on my Dell laptop and IBM PC. Earlier I was developing Qt-5.0.2 based applications on Windows 7. ...
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1answer
53 views

Maintaining kernel modules submitted in the Software Center over kernel updates

This question is specifically for submitting a package in the Software Center. If I wish to submit a package that contains a kernel module (*.ko) which will install in /lib/modules/ and there is a ...
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1answer
317 views

Unable to show Popups Dialog in tab with webview

My app uses tabs, and one of them shows a web page using WebView. Now, I have a toolbar with one action button that I want to show a Dialog - but it's no go. Instead I get this error message when ...
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1answer
142 views

Quickly can't package, but raises no errors

I am trying to make a .deb package for my project in quickly. This is what I get: ilya@ilya-laptop:~/Projects/online-translator$ quickly package ...........Ubuntu packaging created in debian/ ...
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1answer
104 views

Theme ListView text pulled from XML?

I've been working on my msm touch app and got to a point were I get the needed info from an XML file, but it is unthemed, and not as good looking as other "direct" text is. Its black and further to ...