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  • C++ project type: unicode vs multi-byte; pros and cons

    - by Stefan Valianu
    I'm wondering what the Stack Overflow community thinks when it comes to creating a project (thinking primarily c++ here) with a unicode or a multi-byte character set. Are there pros to going Unicode straight from the start, implying all your strings will be in wide format? Are there performance issues / larger memory requirements because of a standard use of a larger character? Is there an advantage to this method? Do some processor architectures handle wide characters better? Are there any reasons to make your project Unicode if you don't plan on supporting additional languages? What reasons would one have for creating a project with a multi-byte character set? How do all of the factors above collide in a high performance environment (such as a modern video game) ?

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  • How can I set a second screen (DISPLAY=:0.1) as the default gnome display?

    - by Pedro Silva
    Due to various reasons, I have my main monitor set as the secondary display in xorg.conf. I would like to have gnome initialize metacity, gnome-panel as running primarily on :0.1, instead of :0.0. Is this possible at all? To clarify, this is a laptop with its LCD turned off. My main monitor is connected to the VGA out and is driven by the nouveau driver for NVIDIA; a secondary monitor is on a displaylink usb-vga donverter. The seconday monitor is set in xorg.conf as the primary display (no way around it). I can do things like DISPLAY=:0.1 gnome-terminal to run applications on the main monitor. My question is whether it is possible to do this (GNOME-) system-wide.

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  • HDMI port not recognized on Sony Vaio

    - by julio
    I am running Ubuntu 11.10 64bit with a Sony VAIO VPC F11. It has an NVIDIA GeForce 310M video card, with the latest Nvidia drivers for the 64 bit linux, and a Windows partition with Win7 64bit. NVIDIA driver version is NVIDIA-Linux-x86_64-280.13 External monitor is Samsung SyncMaster P2770 If I boot into the Windows partition, the HDMI works as expected, with sound and video-- under linux, the HDMI port is not recognized at all, apparently, and provides no signal to the attached monitor. The nividia-settings tool does not recognize any monitor connected to the HDMI port. Disper is installed and cannot recognize an attached external monitor. Can anyone help me diagnose this issue and fix it if possible? The laptop has only the one HDMI port to connect any external monitor, so it I can't get this working I'm stuck using either the laptop screen or Windows. Thanks

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  • Can I monitor traffic on my Incoming Dialup connection using Wireshark?

    - by BeeBand
    Hi, I am trying to create a RAS server in XP Pro. The idea is to log in to this server via a dialup connection. I have set up a new network connection via the New Connect Wizard in XP - according to this tutorial on techrepublic. I am sure that the modem and the connection is working, I have tested it. However, I want to monitor incoming network traffic on this connection. So I thought I would use Wireshark. The problem is that Wireshark does not list this incoming connection on the front page. It lists all my other network connections, ( e.g. my ethernet connection ) but not this one. Whats the best way to monitor traffic on this connection?

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  • How can I make multi-line, vertically and horizontally aligned labels for radio buttons in HTML Form

    - by Patrick Klingemann
    Assuming the following markup: <fieldset> <legend>Radio Buttons</legend> <ol> <li> <input type="radio" id="x"> <label for="x"><!-- Insert multi-line markup here --></label> </li> <li> <input type="radio" id="x"> <label for="x"><!-- Insert multi-line markup here --></label> </li> </ol> </fieldset> How do I style radio button labels so that they look like the following in most browsers (IE6+, FF, Safari, Chrome:

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  • Simulated click on "add more value" button of multi value cck field causes whole content form to sub

    - by ninja
    Hi I have a multi value cck field in my cck content type. I want to simulate click on "add another item" using jquery. which is like $('#edit-field-supp-quan-field-supp-quan-add-more').trigger('click'); but it causes whole content form to submit instead of adding extra multi value cck field. Manuall clicks are working perfectly. Can anyone tell me why behavior of manual clicks and simulated clicks are different. thanks ----Update ---- This is the code I was using:- $('#edit-field-freightamount-0-value').click(function(){ alert('hello'); $('#edit-field-supp-quan-field-supp-quan-add-more').trigger('click'); //$('.form-submit ahah-processed').trigger('click'); }); I actually intended to call this from inside some other function but I just wanted to test it before that . So i wrote this dummy function which is like if i click inside a texrfield it should simulate a click on "add more item" How do we prevent default action of click?

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  • How does Starcraft 2 load it's metadata?

    - by chobok
    Lets say you are playing Starcraft 2 melee map. The game loads the map. Melee maps have the following dependencies: Liberty (Mod) Liberty Multi (Mod) I think the game engine will load the data from Liberty (Mod) first, then from Liberty Multi (Mod). For data that exists in both dependencies, the engine will use the one from Liberty Multi (Mod). Is this correct? Liberty Multi (Mod) is updated with each patch of Starcraft 2. Does the game engine load just the latest version of Liberty Multi (Mod)? or Does the game engine load all the versions and overwrite duplicate data with the latest version?

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  • How do I push a new project to a shared Mercurial multi-repository?

    - by j-g-faustus
    I have a local machine ("laptop") and a shared Mercurial repository on another machine ("server"). The shared repository is set up as a multi-repository as described in the Mercurial documentation using Apache, the hgwebdir.cgi script and Mercurial 1.4. The setup works in the sense that I can browse the projects (repositories) in the web browser, I can clone and pull from the server, and I can push from the laptop when the project/repository already exists on the server. But I cannot create a new project on the laptop (hg init, do stuff, hg commit) and push it to the shared multi-repository (hg push http://server/hg/my-new-project-name) - I get "abort: HTTP Error 404: Not Found", presumably because the directory/project repository does not exist yet. How can I push a new project/directory structure to a Mercurial running elsewhere? I couldn't find anything in the documentation, how do you guys do it?

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  • Multi-Core Programming. Boost's MPI, OpenMP, TBB, or something else?

    - by unknownthreat
    Hello, I am totally a novice in Multi-Core Programming, but I do know how to program C++. Now, I am looking around for Multi-Core Programming library. I just want to give it a try, just for fun, and right now, I found 3 APIs, but I am not sure which one should I stick with. Right now, I see Boost's MPI, OpenMP and TBB. For anyone who have experienced with any of these 3 API (or any other API), could you please tell me the difference between these? Are there any factor to consider, like AMD or Intel architecture?

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  • What application domains are CPU bound and will tend to benefit from multi-core technologies?

    - by Glomek
    I hear a lot of people talking about the revolution that is coming in programming due to multi-core processors and parallelism, but I can't shake the feeling that for most of us, CPU cycles aren't the bottleneck. Pretty much all of my programs have been I/O bound in one way or another (database, filesystem, network, user interaction, etc.) for a very long time. Now I can think of a few areas where CPU cycles are a limiting factor, like code breaking, graphics, sound, some forms of simulation (weather, physics, etc.), and some forms of mathematical research, but they all seem like fairly specialized application domains. My general impression is that most programs are still I/O bound and that for most of our industry CPUs have been plenty fast for quite a while now. Am I off my rocker? What other application domains are CPU bound today? Do any of them include a large portion of the programming population? In essence, I'm wondering whether the multi-core CPUs will impact very many of us, and if so, how?

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  • Quick example of multi-column results with jQueryUI's new Autocomplete?

    - by Lance May
    I just found out that the jQueryUI now has it's own built-in auto-complete combo box. Great news! Unfortunately, the next thing I found is that making it multi-column doesn't seem nearly that simple (at least via documentation). There is a post here where someone mentions that they've done it (and even gives code), but I'm having trouble understanding what some of their code is doing. I'm just curious if anyone has ran across this before and could post a quick and easy sample of making a multi-column result set. Thanks much in advance.

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  • how to fix error with ati driver ubuntu 11.10 X Error of failed request?

    - by user34785
    i install driver by this link : http://cisight.com/install-amd-radeon-hd-6470m-and-solve-overheat-on-ubuntu-1110-oneiric/ but will time i run fglrxinfo , display it : X Error of failed request: BadRequest (invalid request code or no such operation) Major opcode of failed request: 136 (GLX) Minor opcode of failed request: 19 (X_GLXQueryServerString) Serial number of failed request: 12 Current serial number in output stream: 12 my xorg is : Section "ServerLayout" Identifier "aticonfig Layout" Screen 0 "aticonfig-Screen[0]-0" 0 0 EndSection Section "Module" Load "fglrx" EndSection Section "Monitor" Identifier "aticonfig-Monitor[0]-0" Option "VendorName" "ATI Proprietary Driver" Option "ModelName" "Generic Autodetecting Monitor" Option "DPMS" "true" EndSection Section "Screen" Identifier "aticonfig-Screen[0]-0" Device "aticonfig-Device[0]-0" Monitor "aticonfig-Monitor[0]-0" DefaultDepth 24 SubSection "Display" Viewport 0 0 Depth 24 EndSubSection EndSection how may i solve it? thanks

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  • Mic not working when vga connector removed

    - by yygyt
    I have a computer that should run continuously without any connection to a monitor. For developmental purposes I have been keeping the vga connection with the monitor and experienced no problem until now. When I start the machine removing the vga connection beforehand, external microphone does not work. At first I didn't know anywhere to look and see the problem, but after a google search I saw that there is a command as alsamixer I ssh the machine end type alsamixer when it is connected to the monitor, here is the result If I remove monitor connection and reboot again, and then type alsamixer, I see the error, $ alsamixer cannot open mixer: No such file or directory I suspect that this error is related to X somehow. I really don't know anything about what goes beyond. This machine needs to work without any connection to a monitor. I would deeply appreciate any suggestions.

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  • Tips for measuring the parallelism speed-up in multi-core development.

    - by fnCzar
    I have read many of the good questions and answers around multi-core programming how-tos etc. I am familiar with concurrency, IPC, MPI etc but what I need is advice on how to measure speed-up which will help in making a business case of spending the time to write such code. Please don't answer with "well run it with single-core code then multi-core code and figure out the difference". This is neither a scientific nor a reliable way to measure performance improvement. If you know of tools that will do some of the heavy lifting please mention them. Answers pertaining to methodology will be more fitting but listing tools is ok as well.

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  • How do I break a huge WordPress multi-site database up into separate MySQL databases ?

    - by Faith McNulty
    How do I break a huge WordPress multi-site database up into separate MySQL databases? I have 24 WordPress MU-or- multi-site sites, holding over 20K users in total. My Server says I must break them into smaller or separate databases But I am at a loss as to how this is accomplished ? I seem to remember somewhere in the original install a option setting asking if wp should use separate data bases True or False and it was set to false by default ? but Now I can't seem to find it ? Please help !

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  • Multithreading - are the multi-core processors really doing parallel processing?

    - by so.very.tired
    Are the modern multi-core processors really doing parallel processing? Like, take for example, Intel's core i7 processors. some of them has #of Cores: 4 and #of Threads: 8 (taken from Intel's specifications pages). If I to write a program (say in Java or C) that has multiple threads of execution, will they really be processed concurrently? My instructor said that "it is not always the case with multi-core processors", but didn't gave to much details. And why do Intel have to specify both #of Cores and #of Threads? Isn't thread just a term that describe a program-related abstraction, unlike "cores" which are actual hardware? ("Every thread runs on different core").

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  • Is there a good dual monitor arm solution for iMac 27" i7s?

    - by Darren Newton
    I currently have an iMac 27" and am considering purchasing another to run in target display mode. My desk space is a little limited. Is there a dual monitor arm solution that can support the weight of two iMac 27" units (30.5 pounds (13.8 kg)) as well as their width (25.6 inches (65.0 cm)) in a side-by-side landscape configuration? I looked at the Ergotron LX Dual Side by Side but the iMacs appear to exceed the width and weight limit this device is rated for. I'm open to alternate solutions to arms, such as a multi-unit desk stand/mount, but a wall mount is not possible for me at this time. Thanks!

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  • How do I get my Nvidia monitor position settings (in Linux) to persist after a restart?

    - by machineghost
    I have two monitors, and I run them both in Linux using the proprietary Nvidia drivers with "TwinView". I just installed Linux Mint 13, and since the install after every reboot my monitors come up in the wrong position (the computer thinks the left monitor is on the right). After boot-up I can run the Nvidia config and fix the monitors' position, and I can even save the configuration file successfully. But as soon as I restart again, the monitors re-appear switched. Does anyone have any idea what might be causing this (and more importantly, how I can solve it?)

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  • How to allow users to monitor performance of a set of servers without touching every server?

    - by Jon Seigel
    I'm not a sysadmin, so this may be trivial. We have about 20 Windows Server 2008 R2 VMs we want to monitor centrally using Perfmon. The only issue is that the user account that's going to be doing the monitoring is not (and I assume will never be) in the Administrators group. The servers, and the user account (currently one, but could be more) are all on the same domain. Right now we're running a pilot with 5 of the servers, touching each VM manually to set the permissions, which is already getting cumbersome to manage. If we decide to roll this out to all the servers, we need a scalable solution to control access. What is the most flexible way to accomplish this? I'd like a solution that would work with 200 servers just as easily as the 20 servers we have now.

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  • How can I monitor network traffic in an all Mac home network?

    - by raiglstorfer
    I have an all Mac network consisting of an Airport Extreme, 1 MacPro, 1 Mac Mini, 2 MackBook Pros, 2 iPads, and 2 iPhones. The Mac Pro is connected directly to the Airport Extreme via Cat5 and the rest is all running via Wireless. Lately I've been getting prompted by Google to enter Capchas frequently. The message states that I might have software running on my network I'm not aware of. My wireless router is password protected using WPA2 Personal and I frequently change my password so I don't think someone is using the network from outside (but I've no way to confirm this). I'm looking for a relatively cheap (preferably open source) solution that would enable me to monitor and profile the network usage by machine and port. Can someone recommend a solution?

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