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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1answer
254 views

Quickly: how do I return entered data into parent window?

at last I started a simple project (you tube video downloader) in quickly , But got stucked . I added youtube url entry dialog using quickly add dialog command and ;linked it to new button . How ...
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1answer
98 views

Problem with 'insert_at_cursor' attribute

I made something, so after clicking a button, some text should appear in the TextView. Part of my code: def on_button1_clicked(self, builer): self.writetest = ...
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2answers
83 views

Quickly & Ubuntu App Developer: Returns “State: Failed to build” [duplicate]

Possible Duplicate: Launchpad failed to build after “quickly submitubuntu” I created an app for the Ubuntu App Showdown and I'm trying to upload it to the Ubuntu Software ...
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1answer
224 views

Strangely quickly runs but debugger crashes with no exception

Firstly, strangely quickly run on my app runs fine and i believe i have made no changes to the source since quickly debug was working (proclaiming it's not user error is distasteful, I know!). winpdb ...
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2answers
412 views

Is this Ubuntu One DBus signal connection code correct?

This is my first time using DBus so I'm not entirely sure if I'm going about this the right way. I'm attempting to connect the the Ubuntu One DBus service and obtain login credentials for my app, ...
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1answer
65 views

Where can I store other files other than /opt for the application contest?

I know I have to install it to /opt, but where can I store other files, like pictures which are uploaded by the user or a database file?
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1answer
101 views

About root privilages for my application

Hello I am going to make certain application which requires root privileges to run. I am using quickly for that application. How to use sudo , gksudo or anything else for that application to run?
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1answer
35 views

How can I relocate the default quickly directory?

I don't want quickly to create applications in my home folder by default. Instead I want them to be in ~/Projects. Is there a way to do this?
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1answer
973 views

How to implement a client-server application using CORBA standards?

I have been working on CORBA for making the client-server applications, i have already made some but having difficulty when i use to implement my application using different idls on different server ...
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1answer
46 views

I want to know which implementaion of arp is used in Ubuntu 10.10?

Also I am a techie and wanna know how to join the developer network of Ubuntu?
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1answer
197 views

how to convert an application to .deb [duplicate]

Possible Duplicate: Simplest Debian Packaging Guide? I have downloaded an application from here http://projects.gnome.org/postr/ and extracted it on my desktop it runs fine if I go to the ...
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1answer
40 views

Ubuntu.Components version 1.1 is not installed

Anyone knows why I'm getting this error? I do have Ubuntu Components in /usr/lib/x86_64-linux-gnu/qt5/qml I'm on Ubuntu 14.04. Installed the SDK through the PPA. Last time I installed SDK from the ...
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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.
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1answer
31 views

Ubuntu Components - Picker problem

While trying to create two pickers on Ubuntu inside a dialog, the labels inside can only be read properly when they are not chosen and overlap on the left when chosen, as seen in the image: The ...
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1answer
22 views

How to change the font style of a ListItem?

In my Ubuntu Touch application, I have a list of items and I would like to highlight some of them by making the text appear in bold (think of unread messages in a mail client). Looking at the ...
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1answer
84 views

Debian installer does not create desktop/launcher link

I have a Qt application that I want to deploy as a deb package. I have been reading so many sources, all slightly different - most of what I did follows this How To: preparing an application for ...
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1answer
97 views

Error when modifying rules file in debian packaging

Trying to get my debian packaging to work as I want, I modified the debian/rules file (showing line numbers) 12 %: 13 dh $@ 14 15 override_dh_install: 16 dh_install 17 install -m 644 "My ...
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1answer
52 views

Exporting LD_LIBRARY_PATH that contains spaces and special characters

Trying to deploy a Qt application on Ubuntu Directions from Qt site show how to allow the library dependencies to be loaded, by changing the LD_LIBRARY_PATH variable: #!/bin/sh appname=`basename $0 ...
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1answer
64 views

where is “killer gegls from outer space” source code [closed]

I want to modify the game Killer gegls from outer space. Linux OS Easter egg. only I cant find the source-code. Where is it?
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1answer
77 views

Get rid of orange edge around radio buttons

I am currently working on a GTK+ 3 program and I constantly encounter this rendering mistake. The edges around radio buttons are drawn orange which is especially visible when the window is passive and ...
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1answer
27 views

Why ubuntu SDK do not Highlight HTM code?

I just sterted with the ubuntu SDK, but, hell, the Highlight not even works! How can I make the Highlight to work like it should do, in the settings, the mimetype handler use a simple text file style ...
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1answer
138 views

Ubuntu SDK: Template HTML5 app shows warning

I have created a new HTML5 app with the Ubuntu SDK, and whenever I click the Run button, I get the following output on the console: Setting import path to: ...
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1answer
65 views

Why does not app update appear in Software Center?

I have submitted an update (v 1.1.0) for Brightness Controller and it was packaged about two months ago. But it still does not appear in Software Centre. It shows 1.0.1 (the previous version) ...
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1answer
37 views

How to make a debian package from ubuntu SDK?

I have created an App using the Ubuntu SDK and now I can't find a way to package it. The documentation says the easiest way to do so is using the publish button located on the left bar in ubuntu SDK, ...
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1answer
28 views

Ubuntu Touch App File Type

Hello I was wondering what type of app files you can upload to the ubuntu touch app store It is apk files?
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1answer
37 views

To run a dialog box as a result of clicking a button in quickly using python

I am developing an application that has various buttons such as addition, multiplication and so on.. now when I click on addition button I want a dialog box to be displayed that has labels n text ...
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1answer
39 views

QML: QChar Booleans are undefined

function myFunction(x) { console.log(x.isLetter) } myFunction("s") When I run this in a .qml file, it tells me that "isLetter" is undefined. Why? ...
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1answer
36 views

Can I use GTK+ stock icons in a free closed source business application?

If so, have I to indicate anything in license (classical "About" window)?
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2answers
124 views

How to change window opacity dynamically in Python and Quickly?

The app is written in HTML and is running using webkit and Quickly. The opacity can be changed using Glade. I want to add a slider functionality in HTML which will change the title of the HTML ...
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1answer
113 views

ubuntu sdk html5 applicaitons miss some basic effcts of normal html in web browsers!

I download and install the newest ubuntu sdk (1.097~sdkppa~saucy1~test9) in Ubuntu 13.10. I just create a native app with Ubuntu HTML5 APIs, but find that it miss some basic effects/behaviors of ...
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1answer
16 views

How to edit description of a software using Quickly?

By default descriptions of all new Quickly apps are "UNKNOWN" in the debian/control file. Changing that and releasing a new version does not work (It gets reverted). How to edit the descriptions?
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1answer
19 views

What does desktop_Comment_boilerplate mean?

I'm uploading a click package and it's being sent back with the following message: desktop_Comment_boilerplate What does it mean and how do I fix it?
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1answer
91 views

install ubuntu sdk error

I have this error: W: Failed to fetch cdrom://Ubuntu 12.04.3 LTS _Precise Pangolin_ - Release amd64 (20130820.1)/dists/precise/main/binary-i386/Packages Please use apt-cdrom to make this CD-ROM ...
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1answer
171 views

Simple GUI to display static text informations

I would like to know if there is a way to write or modify a simple program (I don't really care what language it'll use) that can be launched in GUI mode and will display formated text and URL that ...
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1answer
148 views

Using Quickly to build a web browser

I've taken my first crack at building apps for Ubuntu. I created a simple web browser using a video made by Jono Bacon. I was wondering if there is a list that I can download that has all of the ...
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2answers
160 views

How to Manage Wifi Clients in Ubuntu?

I'm looking for an application to manage clients who are connected to my Wifi. that application what I can see online clients, and can disconnect them after example 1 hour..is there any application to ...
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1answer
64 views

Can't create a project

I installed the IDE, following the instructions on your website. Than I went on to: http://developer.ubuntu.com/apps/qml/tutorial/ The tutorial says: In Qt Creator, press Ctrl+N to create a new ...
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3answers
121 views

Software Developer [closed]

i am a software developer and want to try out ubuntu. My question is: which distribution of ubuntu do you prefer, if you want to write source code in C++/OpenGL or Java/Javascipt ? Thanks to your ...
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1answer
128 views

How to create Radio player based on Gnome MPlayer?

I want to make a radio player based on Gnome MPlayer, but just for one radio station, some like a native radio application. I don't know if I have permission to modify MPlayer, but since is open ...
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1answer
365 views

What about a Distro dedicated to engineers? [closed]

I am Raihan Ali. I am an civil engineering student. I am looking for a distro dedicated to engineers. I want a distro fully loaded with engineering tools. Is there any distro like this? Thanks in ...
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3answers
2k views

How can i create and run visual basic projects and still run in windows

How can i create and run visual basic projects in ubuntu. After creating them in ubuntu would it be able to run in windows (visual studio). If there is a way then plz suggest me and software for it.
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2answers
1k views

QT code for U Touch returns `qmlscene: cannot find qt installation of ''`

I'm trying to start developing for Ubuntu and Ubuntu phone, but I get an error: qmlscene: cannot find qt installation of '' when I attempt to run my application in Ubuntu from the command line. I'm ...
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2answers
2k views

I get a error “IndentationError: unindent does not match any outer indentation level”

I get this error: Traceback (most recent call last): File "bin/mybrowser", line 32, in <module> import mybrowser File "/home/shaunyo/mybrowser/mybrowser/__init__.py", line 14, in ...
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1answer
68 views

How long does it take for a proprietary software to get reviewed to Ubuntu

My application is just a .py file that has a GUI. I tarred it and uploaded it to Myapps under proprietary license ($0.0) as I have no idea about packaging. The source code is available at Github. It ...
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1answer
53 views

Programmatically Present Windows (Invoke Window Picker) in Compiz

Is there a bash command to invoke what Super+W does in Ubuntu?
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1answer
116 views

Issue with dynamic Quicklist in Unity

I would like to add a Quicklist to Gufw app, but it isn't working. The code is here (you can install reading the INSTALL file): http://bazaar.launchpad.net/~gufw-developers/gui-ufw/testing/files/3 I ...
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1answer
108 views

Ubuntu/Qt Application

In Qt Creator: Is the 'Qt GUI Application' completely different from 'Ubuntu touch GUI Application'? Does Ubuntu App Developer community accept 'Qt GUI Application' developed on Ubuntu platform?
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1answer
124 views

Ubuntu on Tablets: Installing Software without the Store?

When Ubuntu is run on a tablet, will it be possible to install software directly, i.e. without going through your store or will installation of third party be locked down to the store like with Apples ...
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1answer
162 views

Problem with Quickly text input field

The Problem I am using Quickly to try the mybrowser demo from the Ubuntu Website. Everything goes well until I add a simple text field (for URL entry) in Glade, then, no warnings are issued but the ...
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1answer
268 views

Can I create an app for the Ubuntu Touch platform using PyQt?

Will I be able to create an app for the Ubuntu Touch platform targeted at phones and tablets using PyQt? What are the options for writing apps for Ubuntu Touch using Python? Thanks.