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  • 3D touch "Minority Report" style interface - what platform gets me there the fastest?

    - by Ross Braden
    I'm working on a project that requires touch interface, though the use case is desktop more than mobile. Want to start out platform agnostic, not a mobile app. There will be gridwork type of 3D objects and diagraming being represented - think AutoCAD or Minority Report. Want to build a prototype that will have hooks into a database to represent the data. Any advice on what tools to use both for the design and the development of the functionality is greatly appreciated. Thanks!

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  • Is there an apt command to download a deb file to the current directory?

    - by Lekensteyn
    I am often interested in the installation triggers (postinst, postrm) or certain parts (/usr/share or /etc) of packages. Currently, I am running the next command to retrieve the source code: apt-get source [package-name] The downside is, this file is often much bigger than the binary package and does not reflect the installation tree. Right now, I am downloading the packages through http://packages.ubuntu.com/: Search for [package-name] Select the package Click on amd64/i386 for download Download the actual file This takes too long for me and as someone who really likes the shell, I would like to do something like the next (imaginary) command: apt-get get-deb-file [package-name] I could not find something like this in the apt-get manual page. The most close I found was the --download-only switch, but this puts the package in /var/cache/apt/archives (which requires root permissions) and not in the current directory.

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  • Adding methods to an Objective C class interface is optional?

    - by Steve the Plant
    Coming from a C++ background, one thing that confuses me about Objective C is the fact that you can add a method to a class without actually specifying it in the class interface. So I had a barrage of questions: Why would someone choose to not add the method in the class interface? Is it simply because of visibility? Methods without a declaration in the interface are private? Is declaring methods in a class interface just optional? Is it different for overriding a base class' method?

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  • Access DB Transaction on insert or updating

    - by Raju Gujarati
    I am going to implement the database access layer of the Window application using C#. The database (.accdb) is located to the project files. When it comes to two notebooks (clients) connecting to one access database through switches, it throws DBConcurrency Exception Error. My target is to check the timestamp of the sql executed first and then run the sql . Would you please provide me some guidelines to achieve this ? The below is my code protected void btnTransaction_Click(object sender, EventArgs e) { string custID = txtID.Text; string CompName = txtCompany.Text; string contact = txtContact.Text; string city = txtCity.Text; string connString = ConfigurationManager.ConnectionStrings["CustomersDatabase"].ConnectionString; OleDbConnection connection = new OleDbConnection(connString); connection.Open(); OleDbCommand command = new OleDbCommand(); command.Connection = connection; OleDbTransaction transaction = connection.BeginTransaction(); command.Transaction = transaction; try { command.CommandText = "INSERT INTO Customers(CustomerID, CompanyName, ContactName, City, Country) VALUES(@CustomerID, @CompanyName, @ContactName, @City, @Country)"; command.CommandType = CommandType.Text; command.Parameters.AddWithValue("@CustomerID", custID); command.Parameters.AddWithValue("@CompanyName", CompName); command.Parameters.AddWithValue("@ContactName", contact); command.Parameters.AddWithValue("@City", city); command.ExecuteNonQuery(); command.CommandText = "UPDATE Customers SET ContactName = @ContactName2 WHERE CustomerID = @CustomerID2"; command.CommandType = CommandType.Text; command.Parameters.AddWithValue("@CustomerID2", custIDUpdate); command.Parameters.AddWithValue("@ContactName2", contactUpdate); command.ExecuteNonQuery(); adapter.Fill(table); GridView1.DataSource = table; GridView1.DataBind(); transaction.Commit(); lblMessage.Text = "Transaction successfully completed"; } catch (Exception ex) { transaction.Rollback(); lblMessage.Text = "Transaction is not completed"; } finally { connection.Close(); } }

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  • On a dual monitor setup, how can I set which lone monitor the ALT-TAB interface appears?

    - by conner_bw
    On a dual monitor setup, how can I set which monitor the ALT-TAB (or ALT+`) interfaces appear? Right now, it's flying all over the place, possibly based on on which app is focused? I'm not sure. In any case this is not useful to me. I spend 80% of my time staring at the monitor in front of me, and sometimes I turn my head to the left to look at logs, or whatever. When I press ALT-TAB or ALT+`, I want the interface to appear, 100% of the time, on the monitor in front of me. Geforce GT 430, NVIDIA binary drivers, Ubuntu 12.04 LTS. Help?

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  • Is there an apt command to download a deb file from the repositories to the current directory?

    - by Lekensteyn
    I am often interested in the installation triggers (postinst, postrm) or certain parts of packages (like /usr/share and /etc). Currently, I am running the next command to retrieve the source code: apt-get source [package-name] The downside is, this file is often much bigger than the binary package and does not reflect the installation tree. Right now, I am downloading the packages through http://packages.ubuntu.com/: Search for [package-name] Select the package Click on amd64/i386 for download Download the actual file This takes too long for me and as someone who really likes the shell, I would like to do something like the next (imaginary) command: apt-get get-deb-file [package-name] I could not find something like this in the apt-get manual page. The most close I found was the --download-only switch, but this puts the package in /var/cache/apt/archives (which requires root permissions) and not in the current directory.

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  • Insert not working

    - by user1642318
    I've searched evreywhere and tried all suggestions but still no luck when running the following code. Note that some code is commented out. Thats just me trying different things. SqlConnection connection = new SqlConnection("Data Source=URB900-PC\SQLEXPRESS;Initial Catalog=usersSQL;Integrated Security=True"); string password = PasswordTextBox.Text; string email = EmailTextBox.Text; string firstname = FirstNameTextBox.Text; string lastname = SurnameTextBox.Text; //command.Parameters.AddWithValue("@UserName", username); //command.Parameters.AddWithValue("@Password", password); //command.Parameters.AddWithValue("@Email", email); //command.Parameters.AddWithValue("@FirstName", firstname); //command.Parameters.AddWithValue("@LastName", lastname); command.Parameters.Add("@UserName", SqlDbType.VarChar); command.Parameters["@UserName"].Value = username; command.Parameters.Add("@Password", SqlDbType.VarChar); command.Parameters["@Password"].Value = password; command.Parameters.Add("@Email", SqlDbType.VarChar); command.Parameters["@Email"].Value = email; command.Parameters.Add("@FirstName", SqlDbType.VarChar); command.Parameters["@FirstName"].Value = firstname; command.Parameters.Add("@LasttName", SqlDbType.VarChar); command.Parameters["@LasttName"].Value = lastname; SqlCommand command2 = new SqlCommand("INSERT INTO users (UserName, Password, UserEmail, FirstName, LastName)" + "values (@UserName, @Password, @Email, @FirstName, @LastName)", connection); connection.Open(); command2.ExecuteNonQuery(); //command2.ExecuteScalar(); connection.Close(); When I run this, fill in the textboxes and hit the button I get...... Must declare the scalar variable "@UserName". Any help would be greatly appreciated. Thanks.

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  • How can an application (like Firefox) be forced to use a certain network interface?

    - by Lekensteyn
    I've two interfaces: eth0 and wlan0 on a notebook. Possible use cases: eth0 grants me Internet access, and wlan0 is currently connected to a router which does not have Internet-connectivity. For development purposes, I need to connect to the wlan0 by default, but use eth0 for surfing eth0 and wlan0 are both connected to the Internet. For a torrent application, eth0 should be used for speed, but for portability of the notebook, SSH should have a connection over wlan0 eth0 is a wire connection, wlan0 is a wireless one. Sensible data should be transferred over eth0, but other traffic can go over wlan0 as well. Is there a way to force applications (like nc.traditional or firefox) to use a certain network interface? A wrapper like example-wrapper eth0 program is fine too if such program exist. It would be nice if it could configured within Firefox (in runtime). I'd like to avoid IPTables solutions if possible.

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  • GNOME 3.4 disponible : nouvelle interface d'appel audio et vidéo, améliorations des applications et API pour le bureau Linux

    GNOME 3.4 disponible : nouvelle interface d'appel audio et vidéo améliorations des applications et API pour le bureau Linux La seconde mise à jour majeure de GNOME 3, la troisième génération de l'environnement de bureau pour Linux et Unix est disponible. GNOME 3.4 apporte un nombre assez important d'améliorations, des corrections de bogues et des nouvelles fonctionnalités pour améliorer l'expérience utilisateur. Les applications contacts et documents introduites par GNOME 3.2 ont reçu quelques améliorations. Pour la première, la liste des contacts principale a été retouchée, ainsi que l'apparence des détails de contact et un nouveau sélecteur d'avatar a été ajouté....

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  • Is it a bad practice to have an interface to define constants?

    - by FabianB
    I am writing a set of junit test classes in java. There are several constants, for example strings that I will need in different test classes. I am thinking about an interface that defines them and every test class would implement it. The benefits I see there are: easy access to constants: "MY_CONSTANT" instead of "ThatClass.MY_CONSTANT" each constant defined only once Is this approach rather a good or bad practice? I feel like abusing the concept of interfaces a little bit. You can answer generally about interfaces/constants, but also about unit tests if there is something special about it.

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  • How to design an interface, where things need to be called in a specific sequence?

    - by Vorac
    The task is to configure a piece of hardware within the device, according to some input specification. This should be achieved as follows: 1) Collect the configuration information. This can happen at different times and places. For example, module A and module B can both request (at different times) some resources from my module. Those 'resources' are actually what the configuration is. 2) After it is clear that no more requests are going to be realized, a startup command, giving a summary of the requested resources, needs to be sent to the hardware. 3) Only after that, can (and must) detailed configuration of said resources be done. 4) Also, only after 2), can (and must) routing of selected resources to the declared callers be done. A common cause for bugs, even for me, who wrote the thing, is mistaking this order. What naming conventions, designs or mechanisms can I employ to make the interface usable by someone who sees the code for the first time?

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  • C# Reflection: How to call method of interface without creating instance?

    - by jitm
    Hello, I have situation where I have to call method of interface using reflection, like this object x = null; MethodInfo method = interfaceExists.GetMethod("ShutDown"); method.Invoke(x, new object[] { 4 }) As you can see I do not create instance of object! And, as I can supposed, I receive exception Non-static method requires a target And Question, Can I call method of interface using reflection without creating instance of interface and if YES, How I can do it ? Thank you.

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  • iOS 7 sur iPad : les premières vraies images, nouvelle interface et nouvelles fonctionnalités arrivent avec la beta 2 du système

    iOS 7 sur iPad : les premières vraies images Nouvelle interface et nouvelles fonctionnalités arrivent avec la beta 2 du systèmeLes spéculations sur ce que sera iOS 7 pour iPad continuent. Sauf que depuis ce lundi, Apple a effectivement sorti une pré-version du système (la beta 2) compatible avec les tablettes de la marque.Malgré une clause de confidentialité censée empêcher les développeurs qui la testent d'en parler, de nombreuses captures d'écrans et des vidéos ? cette fois-ci réelles ? sont apparues dans la journée.Pas d'immense nouveauté côté fonctionnalités à noter par rapport à la version pour iPhone/iPad (Photobooth, retour des mémos voix, nouvelle manière de passer d'une application ouver...

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  • AS3 - Can I know if a class implements an interface (or is a subclass of another class) ?

    - by lk
    With this code function someFunction(classParam:Class):Boolean { // how to know if classParam implements some interface? } i.e. Comparing classParam with IEventDispatcher interface: someFunction(EventDispatcher) // returns true someFunction(Object) // returns false I know it can't be done with is operator. But, is there a way to do it? Is there a way to know if a class implements some interface? (or is a subclass of another class?)

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  • Fix Corrupted Ruby in Mac OS X Lion

    - by luckyb56
    I screwed up my ruby buy executing the command sudo easy_install pip> /usr/bin/ruby -e "$(/usr/bin/curl -fksSL https://raw.github.com/mxcl/homebrew/master/Library/Contributions/install_homebrew.rb)" It showed error: Couldn't find index page for '-e' (maybe misspelled?) No local packages or download links found for -e error: Could not find suitable distribution for Requirement.parse('-e') After that when I tried to install Brew by: /usr/bin/ruby -e "$(/usr/bin/curl -fksSL https://raw.github.com/mxcl/homebrew/master/Library/Contributions/install_homebrew.rb)" It shows error which I have no idea: /usr/bin/ruby: line 1: Searching: command not found /usr/bin/ruby: line 2: Best: command not found /usr/bin/ruby: line 3: Processing: command not found Usage: pip COMMAND [OPTIONS] pip: error: No command by the name pip 1.1 (maybe you meant "pip install 1.1") /usr/bin/ruby: line 5: Installing: command not found /usr/bin/ruby: line 6: Installing: command not found /usr/bin/ruby: line 8: Using: command not found /usr/bin/ruby: line 9: Processing: command not found /usr/bin/ruby: line 10: Finished: command not found /usr/bin/ruby: line 11: Searching: command not found /usr/bin/ruby: line 12: Reading: command not found /usr/bin/ruby: line 13: syntax error near unexpected token `(' /usr/bin/ruby: line 13: `Scanning index of all packages (this may take a while)' Can this be fixed?

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  • Why can't execute GRUB command on Debian Squeeze 2.6 with GRUB already installed?

    - by Mikalaj
    I installed Debian Squeeze 2.6 (on a recently bought server) with a software RAID1. During installation I installed GRUB loader (1.9 version). System boots OK with GRAB loader BUT right after authorization it cannot execute GRUB command (I want to copy the GRUB from the SDA to SDB). System warning right after GRUB command invocation looks as: root@servername:~# grub -bash: grub: command not found How it could be? (GRUB already installed and no any other OS was installed at all)

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  • How can I assign the keyboard shortcut ?x to the command move to trash?

    - by Fra
    In the Finder in Leopard I used to have the command "move to trash" associated with the keyboard shortcut ?x which was very handy because you could input the command with one hand. Moreover on the keyboard x is near to c, s and a which are other shortcuts often used in Finder. Now in Lion the command "move to trash" is associated to ? ? but I don't like it. How can I assign the keyboard shortcut ?x to the command "move to trash"?

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  • How do I run the sphere-slicer.pl perl command to make a photo into a sphere?

    - by Mahdi Zenali
    I was looking for a program to slice pictures somehow to paste it on a globe(sphere). I found ip-slicer in this website. http://www.bruno.postle.net/2001/ip-slicer/ The problem I have is that I don't know where should I enter the command line. for example after running the program and entering this line "sphere-slicer.pl 16 1000 input.jpg" I get this this error Number found where operator expected at - line 72, near "pl 16" (Do you need to predeclare pl?) Number found where operator expected at - line 72, near "16 1000" (Missing operator before 1000?) Bareword found where operator expected at - line 72, near "1000 input" (Missing operator before input?) This program is written in perl language.

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  • With CentOS 6 and LXC, "ifconfig" is unable to see network interface (but busybox "ifconfig" works fine)

    - by larsks
    I've just started working with LXC under CentOS 6 (via the libvirt adapter). If I create an LXC container, I'm unable to see any network interfaces when using the native system tools: # ifconfig -a # The behavior is very odd; specifying an interface by names yields neither the expected output nor an error message. This is true even for clearly invalid interface names, like this: # ifconfig foo # The ip command exhibits the same behavior. On the other hand, if I use "ifconfig" provided by busybox, everything works as expected: # busybox ifconfig -a eth0 Link encap:Ethernet HWaddr 52:54:00:E0:12:C8 inet6 addr: fe80::5054:ff:fee0:12c8/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:268 errors:0 dropped:0 overruns:0 frame:0 TX packets:6 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:17814 (17.3 KiB) TX bytes:552 (552.0 B) lo Link encap:Local Loopback inet addr:127.0.0.1 Mask:255.0.0.0 inet6 addr: ::1/128 Scope:Host UP LOOPBACK RUNNING MTU:16436 Metric:1 RX packets:0 errors:0 dropped:0 overruns:0 frame:0 TX packets:0 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:0 (0.0 B) TX bytes:0 (0.0 B) So...what does busybox know that the native tools don't? The libvirt config for this environment is pretty standard; the network definition looks like this: <interface type='network'> <mac address='52:54:00:e0:12:c8'/> <source network='default'/> <target dev='veth0'/> </interface> The full configuration is here if you think it might help. I'm running: lxc-0.7.2-2.el6.x86_64 kernel-2.6.32-71.29.1.el6.x86_64 EDIT Weirder and weirder...it's a display issue, not a functionality issue. I can see the output of ifconfig if I pipe it into anything, so for example: # ifconfig eth0 | cat eth0 Link encap:Ethernet HWaddr 52:54:00:E0:12:C8 inet addr:192.168.10.10 Bcast:192.168.10.255 Mask:255.255.255.0 inet6 addr: fe80::5054:ff:fee0:12c8/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:573 errors:0 dropped:0 overruns:0 frame:0 TX packets:6 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:37914 (37.0 KiB) TX bytes:552 (552.0 b) And in fact even when not piping the output, strace shows that ifconfig is in fact writing the output to file descriptor 1 (aka stdout), so it's not clear why no output is actually showing up. This could be either an LXC or a virsh issue, I guess.

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  • How to start "explorer" process using command line (Vista)?

    - by Amby
    Is there a way to start windows "explorer" process from command line? Because of some problem in my Vista OS, explorer process crashes frequently (i can not see TaskBar after that) but using the open windows i can access the cmd.exe ( ctrl+alt+delete does not work). If there could be a command to start "explorer" process again or to start the Task manager then that would help a lot. Thanks Edit: explorer command starts the explorer process, but alt+ctrl+del is still not working, any help?

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  • How to solve "command not found" on Ubuntu bash shell?

    - by redcoder
    I am very new to Ubuntu, struggling to find the proper command to install Zend Server on my Ubuntu 9.10 Server. After downloading the ZF Server and extracting it, I try to run this command: install_zs.sh 5.3 This is the ls of the extracted ZF archive: install_zs.sh README upgrade_zs_php.sh zend.deb.repo zend.rpm.repo But it says command not found. Any idea?

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  • What is the cause of a vertical white line on an LCD monitor?

    - by Deviruchi D Devourer
    This just happened yesterday when I was browsing the internet. My AOC N941Sw monitor is suddenly showing a thin horizontal white line near the center of the screen. The white line distorts the images. I tried checking the cables for loose connection and dust particles but the white line is still here. There are times the entire image below the horizontal white line flickers and move up and down. When this happens, I just turn off the monitor then the flicker goes away but the white horizontal line is still there. After a few minutes, the same thing happen all over again. Is there a way to fix this?

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