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by Tomaz Koritnik
TmStorage is a structureless virtual file system from which complex storages or databases can be built.
by Young Ye
This article solve the performance issue while loading and displaying large amounts of data by using a virtual list with paged data technique.
by Mark Vinod Sinnathamby
This post is a tutorial that is complimentary to the session I did, demonstrating the steps of how a simple holographic application can be built and deployed in the HoloLens emulator.
by Minh Danh Nguyen (ToughDev)
This article describes how to use WinDbg to identify issues that may prevent Windows Subsystem for Linux (WSL) from starting.

Latest Articles

by Minh Danh Nguyen (ToughDev)
This article describes how to use WinDbg to identify issues that may prevent Windows Subsystem for Linux (WSL) from starting.
by Wessel Beulink
Microsoft Azure enhances security with private subnets, fostering efficient network management.
by ToughDev
Emulate parallel port printer to capture data from Tektronix 1230 Logic Analyzer
by ToughDev
Hyper-V & Hardware Assisted Virtualization

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Virtual 

23 Feb 2011 by abhinayagopalam
hie...i am very much interested in networking..i want to do project on honeypots...total span of project is 3 months...i want to do something new implementation for the present virtual honeypots....right now i am pursuing my btech 3rd year ... please help me out finding topic and title...
23 Mar 2014 by abhitechno
My company is still running VAX VMS 5.5-2. My moron boss has accidentally created a huge file named "H:\BCS02\VAX\BCS02_SYSD.bck" and now i am unable to delete it. "dir" command is listing the file along with size and all other specifications but all other commands including "delete"is refusing...
2 Nov 2013 by Adam_adam
Hello All,I want to update multiple rows in ms access project table from different queries, by using vbamy database on sql server 2005. please could you help me and send me some information for it.with regards
8 Aug 2013 by adriancs
class Class1{ public virtual int GetNumber() { return 1; }}class Class2 : Class1{ public override int GetNumber() { int i = base.GetNumber(); return i + 1; }}private void button1_Click(object sender, EventArgs e){ Class1...
19 Sep 2016 by Alex Banu
Take a look at: How to Use Windows On Screen Keyboard in C# WinForms - Stack Overflow[^]
12 Oct 2021 by Ali Majed HA
HelloI am coding a Windows Form Application and I need to active an on-screen keyboard by pressing a key. I have tried applications like Hot Virtual Keyboard but the problem is when I activate keyboard, some part of my application form wull be hidden under the keyboard application. I need to...
3 Feb 2012 by AndreFratelli
Hello everyone,The project I'm currently working on uses Qt and OpenGL. Not that it matters for the question, really.On my QMainWindow I want a pointer to a "Widget" that I'll use to implement all common functionalities in the widgets I write from now on. On the other hand, I'll also...
7 Dec 2010 by Argyle4Ever
why would you want to do this and what do you want to achieve?!
26 Jan 2012 by arielbeck
hello guys,i've written client and server to use on a remote desktop session.when i update registry:[HKEY_CURRENT_USER\SOFTWARE\Microsoft\Terminal Server Client\Default\AddIns\MyAddin]"Name"="path to my DLL"when i connect, client calls are passed to the server, everything works...
2 Jul 2012 by arielbeck
Hello, i have an issue:i have Microsoft SMTP Virtual Server, which listens to smtp requests.Each requests, needs to be passed to a directory, instead of passing it to a mail server.i've used the "Smart host" and declared a dummy domain, thus, the files are staying at the "Queue"...
4 Nov 2012 by armagedescu
DWORD on x86 is a 32 bit unsigned integer. Is easy to find definition. Put cursor on DWORD in VisualStudio and press F12.
28 Sep 2011 by Arun Jacob
Cross Post:http://www.codeproject.com/Lounge.aspx?msg=4037276#xx4037276xx[^]
7 Dec 2010 by azamsharp
I wanted to ask if I can submit or perform a virtual session for codeproject. How to get started with giving a virtual session?Moved from "Answer":Okay here it is in the simplest words. You know when you go to virtual sessions or virtual webinars on CodeProject websites there are...
16 Sep 2016 by Brady Kelly
I've added an external network switch to Hyper-V that connects to my wifi router. Then, when I install Debian, and set the network adaptor during install, Debian still has no internet access at all. Is there a task or settings I am missing or something?What I have tried:I have tried...
14 Nov 2013 by CHill60
Did you even try Google with the search "virtual view list example lvs_ownerdata" - the exact wording in your post?If you had then you would have found this CodeProject article[^]
12 Dec 2012 by Christian Graus
I assume this line is the error:byte[] data = req.DownloadData(Server.MapPath(strURL));You did MapPath on strURL already. So, it's already a local path, but you pass it to a method that expects a virtual path to convert.
13 Jan 2017 by CPallini
Have also a look at typeid operator[^].
10 Jul 2015 by Dave Kreskowiak
Well, you're going to have to write your own Notepad then."Intercepting" the print job and editing it is an extraordinarily complex way to do what amounts to Mail Merge.The application describes what the page image looks like to the print driver. The driver takes that "image" and...
26 May 2016 by Dave Kreskowiak
Given the performance requirements of the Rift, I'd say, no you can't. The Intel graphics chip just doesn't have the performance to generate a decent frame rate.EDIT:After doing a search for "Oculus Rift Intel Graphics" it does work, but you'd have to lower the graphics settings in games...
17 Sep 2016 by Dave Kreskowiak
Why are you asking us?How about you TRY IT and see what happens.
28 Jan 2015 by Dharanya K
Good Evening,I need to know what are the requirements for hosting my WCF web services in real time.I have purchased a VPS and it have a dedicated IP. Do I need to purchase a separate domain??Please help me to know all my requirements.Thank you.
2 Nov 2012 by DJ Fire-Black
Hi !I have a little function which is used to hook virtual functions under Windows x86.I have to port it or linux x86, I know I have to use mprotect but this is abstract for me, I've searched all the night on google, here and on other site but ... wtf ... no answer at all ?? Linux doesn't...
7 Apr 2013 by Dusan Paulovic
Hello, do you know about any Generic SQLite Virtual Table Implementation in C++?I mean something like pure abstract class (interface) that can wrap around any type of container or some another abstract class (interface) providing data at Row and Column in abstract data table.In other...
10 Nov 2015 by Dzianis Igaravich Leanenka
Hello to everyoneI use ubuntu as an OS in Virtual Box(virtual machine). And my goal is to list all the pci devices that can be found in the system using c++ code. Here is a part of it:#include #include #include #include #define...
26 May 2016 by Dzianis Igaravich Leanenka
Hello to everyone!I try to install oculus rift dk2 and I have troubles after I have installed all the required soft. Oculus demands amd or nvidia graphics. Is there a walking around way to run oculus sdk with intel hd?What I have tried:I have tried google search)) but I have found...
18 Nov 2012 by Eugen Podsypalnikov
Maybe it would be possible to export only some interfaces(with needed functionality-aggregation(s) by (smart-)pointers) ? :)// Header to be "exported" :)class CInsideClass; // public CInsiderBase, public ...typedef std::auto_ptr CSafeInsider;class...
11 Nov 2015 by Frankie-C
To access ports from code you have to enable permissions for I/O access using ioperm() [^].Consider also that there are some issues with io.h and asm.h (see[^]). It is highly recommended to compile the code with optimization on when using I/O macros.
3 Feb 2012 by Fredrik Bornander
If you changeclass GLWidget : public QGLWidget, public Widget { }toclass GLWidget : public virtual QGLWidget { }you won't achieve the same as in the first example, because any methods exposed by Widget will not be available on an instance of GLWidget (as they would be in the first...
20 Nov 2014 by Fredrik Bornander
By making the properties virtual, entity framework can conjure up dynamic proxies for your objects, and through the overridden properties support lazy loading.The virtual keyword does not have a different meaning, it just allows the framework to manipulate your object in a way that allows...
16 Dec 2021 by Gabriel Sharp
Here is the code for the project, I need to work at implementing inheritance for it. I would like to have some virtual functions and make it a class driven program which uses derived classes and has a base class. The derived clase should inherit...
2 Feb 2011 by George Tryfonas
Assembler and Simulator for Don Knuth's MIX Computer from The Art of Computer Programming.
20 Nov 2014 by Grant Weatherston
I've heard a lot about lazy loading in MVC (i'm completely new to MVC btw), and alot say you utilise the virutal keyword on properties you wish to lazy load from Entity Framework.can anyone explain does that mean the virtual keyword has a different meaning in MVC than in standard application...
16 Dec 2021 by Greg Utas
Once you're finished converting this code to classes, you should have learned that you should design that way from the beginning. Rewriting the code later is a lot of work and is prone to error as you cut and paste fragments into various classes,...
29 Feb 2012 by gssajith87
I am trying to check if the OS has booted up successfully in Oracle Virtual BOX using Virtual Box api . Out of the Virtual Box API functions, i found that GetGuestEnteredACPIMode is the one that returns True if the OS is running successfully and returns False if the OS fails to boot with errors...
12 Jun 2013 by gssajith87
Hi,I have a virtual harddisk file created using a backup software., i was able to attach the file in disk-management [2008 R2] to view the files., When i right clicked the disk management Disk# section, it does not show me, detach option, it just showed me up the offline option. I made the...
20 Aug 2013 by gssajith87
Hi,I have a VHD File size of 29 GB., I attached the VHD to disk Management in 2008 R2 machine, the VHD has two partition say z: and c:., z: has used space of 33 MB of Full size 100 MB and the C: has used space of 75GB of Full Size of 300 GB. How is this possible ? In my understanding,...
20 Aug 2013 by gssajith87
http://social.technet.microsoft.com/Forums/windows/en-US/09f64a88-e1d7-4f3a-8e6a-292b46bfe4f7/vhd-file-size-is-lesser-than-the-actual-data-size-present-inside-it[^]
23 Feb 2011 by Haechtsuppe
I can't see a questionmark in your text, so whats the question?You need a project for your final exams of education, right?The title could be "Integrating a honeypot in the local infrastructure (for preventing industrial spying)"Try to describe your project very exactly, the examiner...
18 Feb 2013 by jeron1
Possibly this[^] SDK will help.
15 Oct 2013 by JL_Coder
Hello. I have one third party tool, which is an authoring tool/software to create e-learning contents. In which I want to add one onscreen keyboard when a students clicks on a textbox to write. How can do? I heard about tinymce software. Can it be done using it?
19 Jun 2012 by Joan M
Hello all,I'm trying to use Virtual PC in my windows 7 Ultimate SP1 machine without luck...Each time I'm launching START -> ALL PROGRAMS -> Windows Virtual PC -> Windows XP Mode I have to wait some seconds until it appears a message telling me that the "Windows Virtual PC host process...
11 Nov 2015 by Jochen Arndt
From the outl man page[^]:Quote:You use ioperm(2) or alternatively iopl(2) to tell the kernel to allow the user space application to access the I/O ports in question. Failure to do this will cause the application to receive a segmentation fault.
17 Sep 2016 by Karthik_Mahalingam
write here Contact us - VRbox[^]
2 Jul 2013 by Ken Chiayuan Chang
i wanna write a threading object has a virtual member function ,can override.#include #include using namespace std;class thread{private: static void gangplank(void *ptr) { ((thread *)ptr)->run(); }public: void start() { ...
12 Dec 2012 by kishanthakar
I am trying to download resume file from folder nameed as strjobID and file name is stored in CommandArgument of grid view , but while execution I am Getting this Exception'D:/AdminApp/Jobportals/Utils/ApplicantFiles/27/directory.txt' is a physical path, but a virtual path was...
29 Sep 2013 by kumar_11
Here is the code.This code is to understand the concept of virtual function so in the constructor when write like shape(int a=0, int b=0 ) and same for all other constructor of derived classes, working absolutely fine.But when not initializing the members to 0 it's showing error like " no...
24 Nov 2013 by Kunal Ved
I want to set a download link in my gridview , the thing is that I have set a physical path while Uploading the file and saving the file name and its pyshical path in the databaseif (fileUpTimeTable.HasFile){ string TimeTableFileName = fileUpTimeTable.FileName; string...
23 Feb 2011 by LaxmikantYadav
Hi abhinayagopalam,In your virtual honeypots you can include following topics..A) Packet Analyzer Which will give you the all information about packets which are routing in the network.B) Intrusion Detection System(IDS) This system will detect all the Dos Attack and will...
30 Apr 2013 by Leo Chapiro
Take a look: VC++ MFC Tutorial: CListCtrl, InsertItem, Using List Control, SetImageList, Article with source code[^]>can we have any other option to increase or decrease the column width of virtual list control.Yes, we can:// The pointer to my list view control.extern CListCtrl*...
16 Sep 2014 by Manas Bhardwaj
I think what you need is an Application Page:http://msdn.microsoft.com/en-us/library/ee231581.aspx[^]Quote:An application page is an ASP.NET Web page that is designed for use in a SharePoint Web site. Application pages are a specialized type of ASP.NET page. The primary difference...
6 Jan 2017 by Mark Vinod Sinnathamby
This post is a tutorial that is complimentary to the session I did, demonstrating the steps of how a simple holographic application can be built and deployed in the HoloLens emulator.
6 Sep 2012 by mauver_
Hello. I try to connect PIC Bluetooth Module with MFC.I reference this site.http://msdn.microsoft.com/en-us/library/ms881004msdn used PORTEMUPortParams structure.but MFC is not having this structure.help me plzI need to guide about Creating Virtual Com Port
23 Aug 2016 by Max Fedotov
Virtual Keyboard (TabTip) integration in WPF on Win 8.1 and Win 10
26 Oct 2012 by Maxim Kartavenkov
Hello,DirectShow Virtual Video Capture Source Filter in C#[^]Regards,Maxim.
18 Nov 2012 by mcrawley
I would like to reduce the number of C++ class methods exported from a DLL that show up in the list of exported symbols with mangled names. This is an effort to reduce the size of C++ assemblies. Virtual functions implemented/overriden in a derived class can be accessed from a reference to...
14 Nov 2013 by Member 10402390
I will be grateful for virtual view list example lvs_ownerdatathanks.
14 Nov 2013 by Member 10402390
I found this.this MFC. I hoped on clean winapi...
13 Aug 2014 by Member 11011736
Hello everyone,fist of i want to say is that am using visual studio's as my application maker and using virtual basic as my language, am currently having to make a application as a school project that i need to turn in this Friday so any help will be appreciate it the application has 5...
25 Nov 2014 by Member 11058906
Hi,MVC 4 C# app, I need to allow users to access files from folders that are out the virtual directory, files are created by another app every month.1. I do not want user see physical path of files likefile1Could you...
30 Jul 2016 by Member 12661920
I have two monitors one is a touch screen, i want doing a click one my touch screen without moving the mouse position (pointer)is there a simple autohotkey script that it return to previous position of mouse.i use keystarter 1.0 software you can make in 3d a list of button icons with...
11 Jul 2019 by Member 13608791
I'll paste my code below: #include using namespace std; class Smoothy{ private: int price; public: int getPrice(){ return price; } virtual ~Smoothy() = default; virtual string description() = 0; }; class BasicSmoothy: public Smoothy{ private: string...
5 Nov 2021 by Member 15405313
Which emulator doesn't requires VT at all can be installed in win 7 without enabling hardware assisted virtualization What I have tried: Which emulator doesn't requires VT at all can be installed in win 7 without enabling hardware assisted...
26 Jul 2011 by Member 8112150
Hi,I need to create a virtual keyboard using MFC.i am a newbie and have no clue as to how i should start.
26 Jan 2014 by Member 9066404
Hello sir/madamI am designing my own Email System like Gmail. In this I want to use word prediction technique in Compose mail TextBox.I mean when Someone type something in compose mail textbox ,it should automatically retrieve values from database.That's fine,, With PHYSICAL...
30 Jun 2013 by Member 9166990
Hi,I am hosting my website in IIS on my local system. It is working file. But I am creating virtual directory for it then getting below error. Can anyone plz let me know how to resolve it?Server Error in '/'...
26 Oct 2012 by Member 9548682
Hi,I want to create a virtual webcam to use in Skype, Messenger,... like ManyCam. I can take the images from my webcam, but i can't make a "virtual" webcam device.How i can do??Thanks,
18 Feb 2013 by MGreatwolf
Hi,I am trying to track down information that would help explain how to create a virtual MIDI port similar to LoopBe1 (www.nerds.de). My development environment is Visual Studio 2010 and I am most familiar with C++. LoopBe1 is an awesome program and I have/am using today but now I want to...
11 Mar 2013 by MGreatwolf
Thanks, but that is more of an SDK to use a driver that Tobias has already developed.
7 Aug 2013 by microkbr
hi,I am new to .net so please let me clear my doubt .i wanted to know the scenarios where i have to declare my method as virtual.otherwise it will not work.
18 Jan 2024 by Minh Danh Nguyen (ToughDev)
This article describes how to use WinDbg to identify issues that may prevent Windows Subsystem for Linux (WSL) from starting.
28 Dec 2013 by NAGESH SRIVASTAVA
Server Error in '/' Application.Access to the path 'C:\Inetpub\vhosts\sssinfracity.com\httpdocs\Reports\Logistics_Report_by_Employee_on_12_29_2013.pdf' is denied.Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for...
3 Aug 2011 by nk.dushila
Hello Friends I have an assignment to design a Virtual Network Card. I plan to develop it with Windows Device Drivers Kit. I have installed "WDK 7600.16385.1". Actually in this Virtual Network Card. My Device Driver Code will capture web-requests and transfer it...
3 Jul 2013 by nv3
The specification of the thread function is not correct. Use _beginthread (&gangplank, 0, (void *)this);[AMENDED]In addition, you should wait in the destructor of your thread until the newly created workerthread has ended. What happens now is that in main you create a "d"...
12 Jan 2017 by nv3
You have a couple of alternatives:(a) Adding you own type field to the base classclass Animal{public: int m_type; ...}That is not very object oriented and would be my last resort.(b) Use the run-time type information system of C++: Cat* pCat =...
28 Feb 2012 by OriginalGriff
Um. You do realize that this isn't a five minute job?Here is a C++ example: How to develop a virtual disk for Windows[^]
10 Nov 2013 by OriginalGriff
We do not do your homework: it is set for a reason. It is there so that you think about what you have been told, and try to understand it. It is also there so that your tutor can identify areas where you are weak, and focus more attention on remedial action.Try it yourself, or learn the...
17 Sep 2016 by OriginalGriff
Ask the manufacturer, not us. They will have a much better idea - particularly as it will probably vary from mobile to mobile, and VR box to VR box...
15 Dec 2021 by OriginalGriff
To be honest, I'm not going to go into details because that would mean a close inspection of that code, and what I can see from a cursory glance is that it's ... pretty poor quality. It's pretty much monolithic, it's full of duplicated code and...
30 Apr 2013 by P Uday kishore
i am working on on to save the column width of a list control,but in my list control we used as virtual list control so am not able to update the column width.can we have any other option to increase or decrease the column width of virtual list control.
29 Sep 2013 by pasztorpisti
Bug #1:You are allowed to call the constructor of a member variable or base class only from the initializer list of your constructor.Rectangle(int a, int b) : Shape(a, b){}Bug #2:"no matching function for call to Shape::Shape()"If you don't explicitly call the...
20 Nov 2012 by paulo cezar costa
Code for a virtual keyboard.
28 Sep 2011 by piripitsis
Hello,I signed up for a Code Project Virtual Tech Summit (HTML5, CSS3 & JavaScript) and i can't find where to go to access it?Any ideas?Thanks
7 Aug 2013 by Raghuveer Kasyap
Hi,Define the Virtual methods only in the case if the methods are to be overridden in the derived classes as per their behavior. For an example the shape class can have Draw method. The Circle, Rectangle classes which derived from the Shape class can override the Draw method.Regards,Raghu
20 Nov 2014 by Raul Iloc
1.Lazy loading related with EF does not depends on MVC. You could find details about it in the next link: http://msdn.microsoft.com/en-us/library/vstudio/dd456846(v=vs.100).aspx[^]Or if you want info about "Lazy Loading" in general here is a good article: Can you explain Lazy...
26 Jul 2011 by RaviRanjanKr
There is a same question on CP with solution.Take a look there-CP Question[^]
22 Sep 2010 by Richard MacCutchan
I'm afraid we do not write solutions to order. If you do not have the skills to develop this yourself then you need to employ someone to do it for you.
6 Sep 2012 by Richard MacCutchan
See the documentation for PORTEMUPortParams[^]. You need to include the header file containing the definition.
2 Nov 2012 by Richard MacCutchan
Try this sample[^]. I do not think that DWORD is defined in any of the Linux C/C++ headers, but you can add it yourself quite easily.
13 Aug 2014 by Richard MacCutchan
There is no simple way by programming to rename a registry key. You would have to create a new key, copy the subkeys and values from the old one to the new one, and delete the old key and its content. This seems like quite an advanced test for a school project, especially given your comments...
13 Jan 2017 by Richard MacCutchan
C++ does not have any mechanism for detecting class types at runtime. You would need to add some extra properties to your classes. Alternatively there are some third-party libraries that may help; Google for "C++ reflection".Thanks to Carlo, I now know the correct answer.
5 Jan 2014 by Richard Tauber
Implementing dynamic polymorphism without virtual functions and sharing objects across process boundaries.
5 Nov 2021 by RickZeeland
Try VirtualBox, it does not need hardware virtualization support, but a strong processor is recommended: Oracle VM VirtualBox[^]