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  • Why can't I extend the C: drive on Vista? Because I have Free Space to its right instead of Unalloca

    - by tzup
    Okay this is annoying! I have a C: drive that is the primary partition (bootable) that I would like to extend. In order to do that it seems like I need to have Unallocated Space to the right of the partition. Right now, I have "Free Space" to the right. How in the world do I make it Unallocated (not formatted)? There must be some command line utility to be able to do this. Please help!

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  • How does object of sub-class record information about its super-class the in a Virtual Inheritance

    - by Summer_More_More_Tea
    Hi there: I encounter this problem when tackling with virtual inheritance. I remember that in a non-virtual inheritance hierarchy, object of sub-class hold an object of its direct super-class. What about virtual inheritance? In this situation, does object of sub-class hold an object of its super-class directly or just hold a pointer pointing to an object of its super-class? By the way, why the output of the following code is: sizeof(A): 8 sizeof(B): 20 sizeof(C): 32 Code: #include <iostream> using namespace std; class A{ char k[ 3 ]; public: virtual void a(){}; }; class B : public virtual A{ char j[ 3 ]; public: virtual void b(){}; }; class C : public virtual B{ char i[ 3 ]; public: virtual void c(){}; }; int main( int argc, char *argv[] ){ cout << "sizeof(A): " << sizeof( A ) << endl; cout << "sizeof(B): " << sizeof( B ) << endl; cout << "sizeof(C): " << sizeof( C ) << endl; return 0; } Thanks in advance. Kind regards.

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  • Non Blocking Keyboard on WinCE accessing the virtual keyboard

    - by Jan H.
    Hello Guys, I am desperately looking for a solution that enables me to read keyboard events in a non blocking way. These Keyboard events are generated by a VIRTUAL KEYBOARD that comes with the WinCE device. I have a console application running in C++, where the user is asked to navigate via 'ESC', 'U' and other characters through the menu. I first tried to use fread and stdin and realised that it is blocking call and waits for a carriage return. Then I tried to hook up to the windows message WM_KEYUP, but I never recieve this windows message. Furthermore I tried to use QtGUI together with the event QKeyEvent, but I never recieve any event. I wonder if it is in general possible to recieve non-blocking keyboard events on a WinCE device. I would be glad if you have any suggestions! Cheers, Jan

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  • vir-install virtual machine hang on Probbing EDD

    - by user2256235
    I'm using vir-stall virtual machine, and my command is virt-install --name=gust --vcpus=4 --ram=8192 --network bridge:br0 --cdrom=/opt/rhel-server-6.2-x86_64-dvd.iso --disk path=/opt/as1/as1.img,size=50 --accelerate After running the command, it hangs on probing EDD, - Press the <ENTER> key to begin the installation process. +----------------------------------------------------------+ | Welcome to Red Hat Enterprise Linux 6.2! | |----------------------------------------------------------| | Install or upgrade an existing system | | Install system with basic video driver | | Rescue installed system | | Boot from local drive | | Memory test | | | | | | | | | | | | | | | +----------------------------------------------------------+ Press [Tab] to edit options Automatic boot in 57 seconds... Loading vmlinuz...... Loading initrd.img...............................ready. Probing EDD (edd=off to disable)... ok ÿ Previously, I wait a long time, it seems no marching. After I press ctrl + ] and stop it. I find it was running using virsh list, but I cannot console it using virsh concole gust. Any problem and how should I do. Many Thanks

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  • Get Local IP-Address using Boost.Asio

    - by MOnsDaR
    Hey, I'm currently searching for a portable way of getting the local IP-addresses. Because I'm using Boost anyway I thought it would be a good idea to use Boost.Asio for this task. There are serveral examples on the net which should do the trick. Examples: Official Boost.Asio Documentation Some Asian Page I tried both codes with just slight modifications. The Code on Boost.Doc was changed to not resolve "www.boost.org" but "localhost" or my hostname instead. For getting the hostname I used boost::asio::ip::host_name() or typed it directly as a string. Additionally I wrote my own code which was a merge of the above examples and my (little) knowledge I gathered from the Boost Documentation and other examples. All the sources worked, but they did just return the following IP: 127.0.1.1 (Thats not a typo, its .1.1 at the end) I run and compiled the code on Ubuntu 9.10 with GCC 4.4.1 A colleague tried the same code on his machine and got 127.0.0.2 (Not a typo too...) He compiled and run on Suse 11.0 with GCC 4.4.1 (I'm not 100% sure) I don't know if it is possible to change the localhost (127.0.0.1), but I know that neither me or my colleague did it. ifconfig says loopback uses 127.0.0.1. ifconfig also finds the public IP I am searching for (141.200.182.30 in my case, subnet is 255.255.0.0) So is this a Linux-issue and the code is not as portable as I thought? Do I have to change something else or is Boost.Asio not working as a solution for my problem at all? I know there are much questions about similar topics on Stackoverflow and other pages, but I cannot find information which is useful in my case. If you got useful links, it would be nice if you could point me to it. Thanks in advance, MOnsDaR PS: Here is the modified code I used from Boost.Doc: #include <boost/asio.hpp> using boost::asio::ip::tcp; boost::asio::io_service io_service; tcp::resolver resolver(io_service); tcp::resolver::query query(boost::asio::ip::host_name(), ""); tcp::resolver::iterator iter = resolver.resolve(query); tcp::resolver::iterator end; // End marker. while (iter != end) { tcp::endpoint ep = *iter++; std::cout << ep << std::endl; }

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  • Access virtualhosts over LAN (Also in xpmode (Virtual PC))

    - by Pheter
    Hi, I am running Wamp on my computer (the host). I have set up several virtualhosts in apache and they are working fine when I access them from the same computer (host). I have installed Windows XPMode on my computer (which is running windows 7). XPMode (which uses Virtual PC) is set up to use a NAT network. The network in XPMode is working fine, and I can access the host PC via the IP address 192.168.1.5, just as I would if I was using any physical computer on the same network. I can view all the web pages at 192.168.1.5 and it's subdirectories. However, I cannot access any of the subdomains that are configured in the virtualhosts of the host computer. How can I access the subdomains? I don't think that the fact that I am using XPMode and am using a virtualized OS has anything to do with it, but I thought that it was worth mentioning.

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  • ASP.Net Application Trust Medium File IO Outside Virtual Directory

    - by Trey Gramann
    I am trying to determine how suicidal this is... I have a hosting environment where a custom ASP.Net CMS application needs to access the files in the root folder of a website even though it is in a virtual folder so it can be shared accross many sites. I can modify the Medium trust on the server and came up with this... <IPermission class="FileIOPermission" version="1" Read="$AppDir$;$AppDir$\.." Write="$AppDir$;$AppDir$\.." Append="$AppDir$;$AppDir$\.." PathDiscovery="$AppDir$;$AppDir$\.."/> Oddly enough, it works. Yes, I understand it is doing this for all the Apps. I am a bit at a loss as to easy ways to test what else is being exposed. Feels dangerous. Opinions?

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  • virtual function call from base of base

    - by th3g0dr3d
    hi, let's say i have something like this (very simplified): <pre><code> class base { void invoke() { this-foo(); } virtual void foo() = 0; }; class FirstDerived : public base { void foo() { // do stuff } }; class SecondDerived : public FirstDerived { // other not related stuff } int main() { SecondDerived *a = new SecondDerived(); a-invoke(); } What i see in the debugger is that base::invoke() is called and tries to call this-foo(); (i expect FirstDerived::foo() to be called), the debugger takes me to some unfamiliar assembly code (probably because it jumped to unrelated areas) and after few lines i get segmentation fault. am i doing something wrong here? :/ thanks in advance

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  • How do i translate movement on the Canvas3D to movement in the virtual 3D world

    - by Coder
    My goal is to move a shape in the virtual world in such a way so that it ends up where the mouse pointer is on the canvas. What i have: -mouse position (x,y) on a Canvas3D object -Point3d object of where a pick ray starting from the Canvas3D viewport intersects with the first scene object. (point in 3D space of where i want to start the drag) What i want: -Some way to translate the Point3d's coordinates so that the initial point of intersection (the Point3d object) is always overlapping the the mouse position on the canvas (same as when i used the pick ray to determine what the user clicked on from the Canvas3D object). Thanks!

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  • Know a good IP address Geolocation Service?

    - by carrier
    I'd like to get your impressions on any ip geolocation (as in IP to location) service services you may have employed? I'm looking for something free or cheap, which shouldn't be unrealistic because I need to make a very small volume of requests. Anything with python bindings would be especially ideal.

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  • Reclaim Vertical UI Space by Moving Your Tabs to the Side in Firefox

    - by Asian Angel
    Are you looking for a way to move your tabs to the side in Firefox and gain access to more vertical UI space? The Vertical Tabs extension for Firefox lets you accomplish both in a matter of moments. As soon as you install the extension and restart Firefox the Tab Bar will be automatically converted into a shiny new Vertical Tabs Sidebar. All that you have to do is start enjoying the extra vertical UI space. Some things to keep in mind when using the extension are: You can easily adjust the width of the sidebar to suit your needs using the mouse (very nice!) The Firefox Menu Button, Panorama Button, and Tab Control controls move to the bottom of the sidebar (see screenshot above) You can group tabs if needed or desired There is no option available to move the sidebar to the right side of the browser at the moment The use of Personas themes (or other themes) may affect how the text for the tabs will look (i.e. a slightly fuzzy shadow effect when not selected as seen in the screenshot above) Note: Works with Firefox 4.0b7 – 4.0.* Install the Vertical Tabs Extension [Mozilla Add-ons] Latest Features How-To Geek ETC Should You Delete Windows 7 Service Pack Backup Files to Save Space? What Can Super Mario Teach Us About Graphics Technology? Windows 7 Service Pack 1 is Released: But Should You Install It? How To Make Hundreds of Complex Photo Edits in Seconds With Photoshop Actions How to Enable User-Specific Wireless Networks in Windows 7 How to Use Google Chrome as Your Default PDF Reader (the Easy Way) Reclaim Vertical UI Space by Moving Your Tabs to the Side in Firefox Wind and Water: Puzzle Battles – An Awesome Game for Linux and Windows How Star Wars Changed the World [Infographic] Tabs Visual Manager Adds Thumbnailed Tab Switching to Chrome Daisies and Rye Swaying in the Summer Wind Wallpaper Read On Phone Pushes Data from Your Desktop to the Appropriate Android App

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  • Tuning OS X Virtual Memory

    - by dcolish
    I've noticed some really odd results form vm_stat on OSX 10.6. According to this, its barely hitting the cache. Searches of pretty much everywhere I could think of turn up little to explain why the rate is so low. I asked a few friends and they're seeing the same thing. What gives and how can I make it better? Mach Virtual Memory Statistics: (page size of 4096 bytes) Pages free: 78609. Pages active: 553411. Pages inactive: 191116. Pages speculative: 6198. Pages wired down: 153998. "Translation faults": 116031508. Pages copy-on-write: 2274338. Pages zero filled: 33360804. Pages reactivated: 264378. Pageins: 1197683. Pageouts: 43756. Object cache: 20 hits of 1550639 lookups (0% hit rate)

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  • no disk space, cant use internet

    - by James
    after trying to install drivers using sudo apt-get update && sudo apt-get upgrade, im faced with a message saying no space left on device, i ran disk usage analyzer as root and there was three folders namely, main volume, home folder, and my 116gb hard drive (which is practically empty) yet both other folders are full, which is stopping me installing drivers because of space, how do i get ubuntu to use this space on my hard drive? its causing problems because i cant gain access to the internet as i cant download drivers when i havnt got enough space, this happens every time i try it sudo fdisk -l Disk /dev/sda: 120.0GB, 120034123776 bytes 255 heads, 63 sectors/track, 14593 cylinders, total 234441648 sectors Units = sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x0003eeed Device Boot Start End Blocks Id System /dev/sda1 * 2048 231315455 115656704 83 Linux /dev/sda2 231317502 234440703 1561601 5 Extended /dev/sda5 231317504 234440703 1561600 82 Linux swap / solaris Output of df -h df: '/media/ubuntu/FB18-ED76': No such file or directory Filesysytem Size Used Avail Use% Mounted on /cow 751M 751M 0 100% / udev 740M 12K 740M 1% /dev tmpfs 151M 792K 150M 1% /run /dev/sr0 794M 794M 0 100% /cdrom /dev/loop0 758M 758M 0 100% /rofs none 4.0K 0 4.0K 0% /sys/fs/cgroup tmpfs 751M 1.4M 749M 1% /tmp none 5.0M 4.0K 5.0M 1% /run/lock none 751M 276K 751M 1% /run/shm none 100M 40K 100M 1% /run/user

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  • QAS custom address layout

    - by DaveC
    I have been given a new format to add to the QAS ini file Qawserve.ini and want to use this format in the GetFormattedAddress() method call. How do I specify that I want to use this new custom layout? I have tried using the name as specified above the layout in [Custom Layout], for example: objAddress = new QuickAddress(AppSettings.ReadSetting("qasServer")) { Engine = QuickAddress.EngineTypes.Singleline, Flatten = false }.GetFormattedAddress(Picklist.Items[selectedValue].Moniker, "Custom Layout");

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  • How does a virtual machine work?

    - by Martin
    I've been looking into how programming languages work, and some of them have a so-called virtual machines. I understand that this is some form of emulation of the programming language within another programming language, and that it works like how a compiled language would be executed, with a stack. Did I get that right? With the proviso that I did, what bamboozles me is that many non-compiled languages allow variables with "liberal" type systems. In Python for example, I can write this: x = "Hello world!" x = 2**1000 Strings and big integers are completely unrelated and occupy different amounts of space in memory, so how can this code even be represented in a stack-based environment? What exactly happens here? Is x pointed to a new place on the stack and the old string data left unreferenced? Do these languages not use a stack? If not, how do they represent variables internally?

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  • "Failed to create swap space" error during installation

    - by Welsh Heron
    I've been trying to install Ubuntu for the past two days or so, but I've been running into a problem: every time I run the installation program on the LiveCD, I always get the same (or a very similar) error: "Failed to create Swap space The creation of swap space in partition #3 of SCSI5 (0,0,0)(sda) failed." So far, I've run DBAN (Darik's Boot and Nuke) on my HDD once, to make absolutely sure that everything on it had been erased. Then, I simply put in the LiveCD, and let it run the automated install. I get the above error directly after I tell it to automatically partition the HDD (it will work for a second or so, then this will pop up), forcing me back to the screen that lets me choose whether I want to automatically or manually partition the HDD. Well, after failing to install the software manually, I did a little research and learned enough about partitioning Linux to use the 'Manual partitioning' option. I partitioned the HDD as follows (it's a 1TB drive): /home - (the rest)- ext2, / - 20GB - ext2, /boot - 100MB - ext2, /swap - 8GB /EFIboot - 40MB The only difference when I tried this method was that I got THIS message: "Failed to create Swap space The creation of swap space in partition #2 of SCSI5 (0,0,0)(sda) failed." Basically, the only difference was that there was now a '2' instead of a '3'. If I may ask, what exactly am I doing wrong? I've tried looking around the internet (that's basically all I've done for the last two days), but no one seems to have the same problem that I have, and I've tried most of the solutions for similar problems (DBAN, formatting partitions in ext2 format, etc). The only thing I haven't tried is using the terminal to manually partition the HDD...and I actually DID try to do this, but I wasn't able to get past 'su' 's password demand, so I wasn't able to use the terminal. Thank you for your help in advance. ~Welsh

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  • Override number of parameters of pure virtual functions

    - by Jir
    I have implemented the following interface: template <typename T> class Variable { public: Variable (T v) : m_value (v) {} virtual void Callback () = 0; private: T m_value; }; A proper derived class would be defined like this: class Derived : public Variable<int> { public: Derived (int v) : Variable<int> (v) {} void Callback () {} }; However, I would like to derive classes where Callback accepts different parameters (eg: void Callback (int a, int b)). Is there a way to do it?

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  • Getting my ip address

    - by AntonioCS
    Hey! I have a computer on a small network, so my ip is 192.168.2.100. I am trying to get my real ip. I download the no-ip client but that just seems like a lot of trouble for such a simple thing. I created this php script that got http://www.ip-adress.com/ page and retrieved the ip it gave me. Is there a simpler way? Either using C, WSH or something. Or if there is an easier way in php please tell me. When I get the ip I'll uploaded it to my ftp site so that I can see the ip from work.

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  • iOS 5 fixed positioning and virtual keyboard

    - by jeffc
    I have a mobile website which has a div pinned to the bottom of the screen via position:fixed. All works fine in iOS 5 (I'm testing on an iPod Touch) until I'm on a page with a form. When I tap into an input field and the virtual keyboard appears, suddenly the fixed position of my div is lost. The div now scrolls with the page as long as the keyboard is visible. Once I click Done to close the keyboard, the div reverts to its position at the bottom of the screen and obeys the position:fixed rule. Has anyone else experienced this sort of behavior? Is this expected? Thanks.

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  • NTFS-compressing Virtual PC disks (on host and/or guest)

    - by nlawalker
    I'm hoping someone here can answer these definitively: Does putting a VHD file in an NTFS-compressed folder on the host improve performance of the virtual machine, diminish performance, or neither? What about using NTFS compression within the guest? Does using compresssion on either the host or the guest lead to any problems like read or write errors? If I were to put a VHD in a compressed folder on the host, would I benefit from compacting it? I've seen references to using NTFS compression on quite a few VPC "tips and tricks" blog posts, and it seems like half of them say to never do it and the other half say that not only does it save disk space but it actually can improve performance if you have a fast CPU and your primary performance bottleneck is the disk.

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  • ASP.NET MVC thinks my virtual directory is a controller

    - by kmehta
    I have a virtual directory under my MVC website in IIS called "Files". This directory is at the same level as my Views directory. When I link to a file from my MVC app to a file under my Files directory, I get the following error: The controller for path '/Files/Images/1c7f7eb8-5d66-4bca-a73a-4ba6340a7805.JPG' was not found or does not implement IController. It thinks that my Files VD is a controller. How do I access my files like a normal VD without MVC interfering? Thanks.

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  • Unwanted virtual keyboard in Blackberry app

    - by matkas
    I have developed a Blackberry app for the 4.5 os series. It works fine on all device except on the storm 1 (storm2 untested). The problem (on the storm) is that the main screen of my application (and all other screens in fact) is shown with the virtual keybord. But there is no text field displayed on the screen that would justify the VK to show up. I have bitmap fields and button fields only on that screen. The use of a single program for all devices (4.5 and up) is seriously preferred. What is causing the VK to show up and what can I do to prevent it (in JDE 4.5)?

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