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C# USB HID Interface

by Szymon Roslowski

Just another approach to understanding communication between HID devices and C#.

Cryptographic Interoperability: Keys

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Import and export Cryptographic Keys in PKCS#8 and X.509 formats, using Crypto++, C#, and Java.

Custom Controls in Win32 API: Scrolling

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How to support scrolling within your controls.

XColorSpectrumCtrl - a non-MFC color picker control that displays a color spectrum

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XColorSpectrumCtrl displays a color spectrum that allows user selection, and provides APIs for color based on RGB and HSL color models.

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Machine Learning for C++ developers - the hard way: DirectML

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Task Manager shows you the programs, processes, and services that are currently running on your computer. You can use Task Manager to monitor your computer’s performance or to close a program that is not responding.

IntelliFile - An Alternative Windows Version to the Famous Total Commander

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This article is about the IntelliFile application which is a free alternative Windows version to Total Commander and uses many components that have been published on CodeProject.

ScreenCapture: Single Header DirectX Library with HDR ability

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DirectX hardware screen capture and encoding with audio mixing capabilities. H264/H265/VP80/VP90/FLAC/MP3. HDR supported.

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Win32

Run All Jobs at Once Utility

20 Aug 2009 by "Fish" (David B. Trout)

A command-line tool to run multiple programs in parallel (i.e. concurrently, as a group).

Windows 7 File-properties "Version" Tab Shell Extension

19 Oct 2010 by "Fish" (David B. Trout)

Simple parsing of VS_VERSIONINFO version information strings displayed in an XP-style file-properties "Version" tab

The random question....

3 Jan 2010 by #realJSOP

I think your problem is that you expect the LittleDrummerBoy object to be instantiated with the appropriate parameters, when in fact, it won't be. The PsychoBicthFromTheWeb class appears to be a little too random, and the GAK! will throw an exception. How you handle the GuitarMan exception...

How can I read available RAM and CPU load?

23 May 2010 by #realJSOP

Google the phrase "WMI C++". I'm sure you'll come up with a bunch of hits.

How to change icon from bullet to check in CheckMenuRadioItem

16 Sep 2010 by #realJSOP

You have to paint the control yourself. And why on earth would you want to NOT use the frameworks available to you?

How to introduce multiple releases for various functionalities in Visual Studio project?

7 Dec 2010 by #realJSOP

Macros are compile-time features, not runtime features.One way to accomplish this would be to include one or more DLLs in your project that turn one various features, and then base those features' availablity on the presence or absence of the DLLs. Of course, there are many other ways,...

create win32 api

8 Dec 2010 by #realJSOP

The Win32 API isn't meant to "wrap" your code. Your code is supposed to wrap the API. By creating an assembly in .Net, and assuming you've made your classes public, other programmers can make use of YOUR "api".

RegSvr32 error : Access Violation

17 Dec 2010 by #realJSOP

That error usually indicates a screwed up pointer somewhere in your code. Sorry I can't be more specific, but it's been a while since I did any unmanaged C++ stuff.

Interface Error: Dual Interface Update: Not a member

21 Dec 2010 by #realJSOP

I found this with google (you know - that free search engine at www.google.com):http://support.microsoft.com/kb/241849[^]

cannot instantiate abstract class

10 Jan 2011 by #realJSOP

An abstract class cannot be instantiated. You MUST derive a new class from it, and implement all of the pure virtual functions in it, and then use the new class instead.This is basic C++ stuff...

application to list the services running at startup in windows

24 Jan 2011 by #realJSOP

It's called the System Managment Console. Right click My Computer, select "Manage" from the context menu, and when the form comes up, look atr the bottom, and there's an entry in the tree labeled "Windows Services". Click that, and you'll see all of the services.

Get EFS encrypted files details using C#

9 Feb 2011 by #realJSOP

It's part of the file system, so I would look at the System.IO namespace for that kind of stuff. The FileInfo.GetAccessControl method looks interesting.

strcpy_s vs StringCchCopy

17 Mar 2011 by #realJSOP

They both do the same thing. strcpy_s is standard C, and the other is MFC a native Windows API. Google really does work. Try this link:http://msdn.microsoft.com/en-us/library/ms646979(v=VS.85).aspx[^]

application for all windows OS

7 Apr 2011 by #realJSOP

Your operating system support should be restricted to XP, Vista, Windows 7, Server 2003-2008. Everything older than those is irrelevant and so obsolete that they make Warren Buffet look like a spring chicken.Further, unless you have a tangible requirement to create 64-bit software, don't...

Console: Catch CTRL_SHUTDOWN_EVENT in Win7?

17 Jul 2011 by #realJSOP

I found this when I googled this - "Catch CTRL_SHUTDOWN_EVENT in Win7"[^]

How to get handles of tabs

26 Aug 2011 by #realJSOP

You can't avoid using enumChildWindow. The tab pages are (probably) child windows of the tab control.

Add a watermark to a document in the print spooler C#

17 Jun 2018 by #realJSOP

Google is your friend: Google - c# add watermark to printed page[^]

Writing a Total Commander plug-in in Visual Basic (or C#)

8 Mar 2009 by Đonny

This article introduces and describes a framework that allows the creation of managed plug-ins for the Total Commander file manager.

combine of access with mfc

8 Oct 2012 by (unkownOfMe)

Hello, i try to connect access using MFC,here is the sample codeCString str;str=_T("Provider=Microsoft.Jet.OLEDB.4.0;""Data Source=C:\\Users\\User\\Documents\\DataBase.mdb;");there is an error,error C2308: concatenating mismatched strings1> Concatenating wide...

ToDoList 8.2 - An Effective and Flexible Way to Keep on Top of Your Tasks

17 Sep 2023 by .dan.g.

A hierarchical task manager with native XML support for custom reporting

how can we dereference pointer in javascript

29 Mar 2011 by 01.mandar

himy problem is about dereferencing the void* to string so i can display value so far i have created a dll which exports somefun()MY.dll in C std callingvoid* somefun(){ return &eax;}this function is then loaded in Javascript via jcstypes for XUL...

ctypes is unable to load dll file using ctypes.open()

30 Mar 2011 by 01.mandar

this code works properly on my machine but when i copy it to another machine with all its prerequisite it stops at line 5: var lib = ctypes.open("C:\\myapp\\dl1.dll");function initport() {Components.utils.import("resource://gre/modules/ctypes.jsm"); var lib =...

convert char data[5] to LPCWSTR

21 Apr 2011 by 01.mandar

is it possible to convert to LPCWSTR using mbstowcs?

Confusion in AT Command to serial port using WriteFile()

11 May 2011 by 01.mandar

when i write AT Commands in dat array for sending it to GSM Deviceint TransxPortGSM() Functionunsigned char dat[3]={'A','T'};//tried char,int..DWORD dwNumBytesWritten=sizeof(dat); check=WriteFile( hPort, // Port is getting correct &dat, ...

Application has failed to start because side by side configuration is incorrect

29 May 2011 by 01.mandar

myapplication....

Get win32 registry value

17 Oct 2011 by 01.mandar

How can we parse RegOpenKeyEx(HKEY_LOCAL_MACHINE,L"SYSTEM\\CurrentControlSet\\Enum\\BTHENUM\\{00001101-0000-1000-8000-00805f9b34fb}_LOCALMFG&000f\\9&3408FE52&0&646E6C00E02E_C00000000\\Device Parameters", 0, KEY_QUERY_VALUE, &hKey) )so that we can use it for each GUID (traversing...

Import Structure from dll (unmanaged to win32 console application

18 Oct 2011 by 01.mandar

--------------...

Bluetooth COM port search in registery

19 Oct 2011 by 01.mandar

i have written Bluetooth code in win32 which detected bluetooth devices in range andafter installing bluetooth device on my PC it creates more than one COM portto get serial port i search in HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSetbut some time the newly installed bluetooth do not...

regular-expression

Automate device installation without going to control panel

20 Oct 2011 by 01.mandar

i have 2 Bluetooth1. PC dongle and 2. Mobile Bluetooth Device of same make in normal installation we goto Control Panel and do add device ,this device directly gets added in the system and pair with each other without using any key.i want to automate this by getting event from the OS...

Serial COM Port readfile() reads only 30 bytes

11 Nov 2011 by 01.mandar

i my serial port reads only 30 bytes ?i cant find issue in dcb though. DCB dcb_ob; COMMTIMEOUTS ct_ob; dcb_ob.DCBlength =32;//sizeof(DCB); dcb_ob.BaudRate = CBR_115200; // Current baud dcb_ob.fBinary = TRUE; // Binary mode; no EOF check dcb_ob.fParity =...

loading c++ dll function having parameter (char * ) into c#

12 Nov 2011 by 01.mandar

i have created dll in vc++init_set(char *) takes char *extern "C" MYDLL_API int init_set(char*);extern "C" MYDLL_API int init_valid();in c# i want to pass an string to init_set(). [DllImport("MYDLL.dll")] public static extern int init_set(char[] s); ...

Serial COM Port readfile() reads only 30 bytes

14 Nov 2011 by 01.mandar

Quote: it is necessary to do GetCommState() before SetCommState() reference code: http://msdn.microsoft.com/en-us/library/windows/desktop/aa363201(v=vs.85).aspx[^]

opengl application in dll to be loaded on win32 c++ window

24 Apr 2012 by 01.mandar

Hi friendsi have created an opengl application(moving color triangle) and runs perfectly(using glut).i wanted to pack the opengl application code into dll.another NEW win32 application will load the dll and create a new blank window, now i want to run the code from the dll into the...

win32 MDI client form not updating its size

25 Apr 2012 by 01.mandar

Hi FriendsI have created a MDI form in that i have 2 forms (treeview form and information form)in 2nd (information form) i have added 2 buttons next and previousminimize, maximize works on all of client form correctly(before any click on 2nd form)Problem:when i click button...

making fullscreen window(no taskbar & titlebar) for opengl execution

19 May 2012 by 01.mandar

i have win32api mdi form with 4 child window.one of the child window runs opengl code but really slow.i want to make fullscreen when f key is pressed.what is better solution to make window fullscreen(no taskbar & titlebar) without delay in opengl execution.

embedding glut application in win32api

21 Jun 2012 by 01.mandar

i have done a opengl application in win32 only using platform library.it was performing very slow so i decided to do the same opengl project using glut libraryopengl code workes fine in glut but not in win32.i thought it would be because of wm-paint so i did it with timer but no effect...

Debugging C# COM assembly in VS2010

26 Jul 2013 by 2006 Flauzer

I'm developing a C# assembly which is to be called via COM from an old vb6 (ie, "native" win32, not .net) application. I've installed VS2010 Premium in a W7 x64 and simply my goal is to use Visual Studio to debug the C# code...Other hint: the C# assembly is compiled in "x86 mode" (.NET4)...

Debugging C# COM assembly in VS2010

29 Jul 2013 by 2006 Flauzer

From menu Debug->"Attach to.." option, please point the correct process ie, dllhost.exe COM Surrogate. and not win32 client....

CD Burner - console version

4 Jul 2008 by 2b|!2b==?

A command-line program that backs up folders and files specified in a text file to CD-W

How to print output message in command prompt using C++ in win32 application (in same command promp window)?

14 Jan 2020 by _Asif_

It's easy and a good example can be found here Visual C++ Enable Console - Stack Overflow[^] Do a little search and you will find plenty of examples more.

My query works fine in MS Access, yet it fails in my code

5 Aug 2013 by _Damian S_

Save your query directly in Access, then simply return the results of your query through ADO, rather than letting ADO try to do the work for you.

Show count of columns distinct values

5 Aug 2013 by _Damian S_

Couple of options... either create a query to group by County and TGTE and count the ID field, then run a crosstab query over that...or...Create a subquery for each of the two types of TGTE, group by county and where clause on the TGTE, then have a main query to return the County,...

Explorer Shell Extensions in .NET (Revised)

16 Sep 2015 by _Plutonix

Framework for NET based Shell Context Menus using VB, C#

How to learn windows system programming from the scratch?

22 Jul 2016 by Aaditya Vishwakarma

I've been learning and practising programming with C/C++ for two years and now I'm pretty good at this. But now I want to learn windows system programming with win32 apis, I've tried some books like Addison_Wesley_Windows_System_Programming and a few others but they didn't work for me as I felt...

Application unresponsive when running a 32 bit MFC Print Application that uses StartDoc API on 64 bit OS

17 Jun 2015 by Aashish Aswal

I have a 32 bit MFC Print Application that uses StartDoc API for printing. In 32 bit OS, i didn't configure any Default Print Driver, then on File Print I selected Microsoft XPS Document Writer. A "Save as File" Dialog pops up which runs in the same Process as that of Application. Now I have...

Console simple progress

1 Feb 2013 by aaverian

A very simple console progress bar.

Extracting Icons from EXE/DLL and Icon Manipulation

17 Jan 2009 by Abdallah Gomah

How to extract icons from EXE/DLL, split/merge icons, and get icons associated with files.

Win32exception was unhandled acces is denied - VB.NET

28 Jul 2019 by Abduu Atef

I have a problem with accessing the process This is the code Dim p As Process = Process.GetProcessesByName("Wolfteam.bin")(0) For Each moz As System.Diagnostics.ProcessModule In p.Modules If moz.FileName.IndexOf("obj") -1 Then Label1.Text =...

conditional compilation flags in odl file

25 Mar 2011 by Abhi Lahare

Hope this helps, but not sure how much.http://msdn.microsoft.com/en-us/library/aa366773%28v=vs.85%29.aspx[^]

Notifications from the system tray

26 Jul 2011 by Abhi Lahare

How about displaying alert box like Communicator, The only things which worries me is that if the frequency is too high. The user will be constantly losing focus because of changing values in the alert window.

User32.dll SystemParametersInfo method problem.

17 Feb 2010 by Abhinav S

Something here[^]. Not sure if this is useful to you though.

HTTP Monitor for Webbrowser Control

27 Sep 2011 by abhinav_soni

The ATL COM DLL that captures requests from individual Webbrowser Control

QueueUserWorkItem not calling the function

16 Feb 2012 by Abhineet Ayan Verma

Hi All, Why my QueueUserWorkItem is not at all working. My code is here:typedef struct{ PCHAR URL[MAX_URL] ; PCHAR DestinationPath ;}MAINDATA, *PMAINDATA ;int main(int argc, char * argv[]){ PMAINDATA pData ; BOOL bQuwi ; DWORD dwIndex ; PCHAR pURL ; ...

CreateSemaphore event set

18 Feb 2012 by Abhineet Ayan Verma

How to set event in case of calling CreateSemaphore ? I mean what I should use to avoid Main from exiting before my threads if I am implying CreateSemaphore in the Main itself??? I am using QueueUserWorkItem with Semaphore. Anybody please.

Use of Isolated Storage (A Simple Demo)

28 Jul 2008 by Abhishek Sur

The article will help you to use Isolated Storage Classes

UnCommon C# keywords - A Look

7 Sep 2009 by Abhishek Sur

Some of both Documented and Undocumented Keywords that we dont use often like Check, StackAlloc, Fixed,default,@variables,Nullables, __arglist,__reftype etc are explained with simple examples

Grant Access to your Assembly from COM Objects

14 Sep 2009 by Abhishek Sur

Make your class library COM visible using few simple steps

Windows 7 Trigger Start Service

17 Jan 2010 by Abhishek Sur

Implement services that start/stop automatically to some events like Device attached, Network Availability, Firewall port modified, Domain join, Group Policy change etc

Parse a PE (EXE, DLL, OCX Files ) and New Dependency Walker

28 May 2012 by Adam Roderick J

A brief and basic explanation about the PE data structures, with a sample

SEH vs C++ exceptions

6 Feb 2014 by Adamanteus

Intercepting SEH exceptions in C++ program

Launch Application Windows in MultiScreen

13 Sep 2010 by Adhish Pendharkar

Launch Application Forms in MultiScreen

WSH Clipboard Access

26 Feb 2009 by Adrian Dorache

Scripting the clipboard content in Windows Script Host.

How to avoid multiple instances of your Windows application

27 Sep 2010 by Aescleal

I tend to use boost::interprocess::named_mutex for the same thing. The equivalent code is something like:using boost::interprocess;const char *application_name = "Application Name";int main()try{ struct named_mutex_killer { ~named_mutex_killer() {...

Formatted MessageBox/AfxMessageBox

21 Oct 2010 by Aescleal

printf is so 1980s. If you don't want to dig out your shoulder pads and big hair why not go for a more modern C++ approach?Instead of a function try a stream buffer:class message_box_stream_buf : public std::basic_streambuf{ public: message_box_stream_buf( const...

c++ application not working on system start.

28 Oct 2010 by Aescleal

What happens if you put a full path in for the call to fopen? Something like:FILE *file_ptr = fopen( "c:\\test.txt", "a+" );making sure the path is somewhere that can be written to by just about anything. If that works then you know the problem is the current working directory of...

Confused with generated menu identifiers...please help

25 May 2012 by Aescleal

Provided the IDs are consistent between the source file and the resource file you can call them whatever you like.You might find that the The reason the IDE has generated some weird looking IDs is that MFC defines ID_FILE_NEW and ID_FILE_OPEN and it wanted to make sure that there wasn't...

Cross platform Client Server Program to talk from Windows to Unix and Vice Versa

6 Jun 2012 by Aescleal

And adding to Albert's and Jack's answers there's a quick answer as to when you need to use RPC:Only when whatever code you're trying to call makes you use it.Otherwise, forget it, at least at first. RPC comes with loads of baggage. You'd spend most of your time playing with interface...

Owner draw combo drop down list does not retain the aero style.

7 Nov 2013 by Aescleal

I'm surprised that making the combo box either of the owner draws styles is messing up the theme. USER should still be drawing most of the control and your code is just responsible for drawing the items. While I haven't used an owner draw CB in yonks I've got an owner draw listbox that still...

starting a process using logonUser and createProcessAsUser api

2 May 2013 by aesongi

I tried to start a process in service session ( session 0 : window 2008 server (session 0 isolation)) with user account. then I use LogonUser and createProcessAsUser api.....but, user account('frank') //session id :0 //process name: notepad.exe when interactive service and desktop is...

Pass values to a HTML page created using iwebbrowser2 in C++

11 Jul 2017 by Afzaal Ahmad Zeeshan

Since you are using the content and material provided under an Article at CodeProject, this post is likely off-topic and it is encouraged that you ask this question on that Article — there is a forum provided under the post. You should ask it there, for several reasons. First, the author knows...

Handle mozilla file save dialog

8 Feb 2016 by aglom08

@MuhammadUSman1You can use autoIT for this type of handling because autoIT is good and you can handle easily.Just you have to run exe file in selenium.

jParser PCL .NET Json Parser

15 Feb 2016 by Ahmed Amer Jaf

Fast n Easy Way to parse Json data

C# Class To Download Files Synchronously, That Supports Cancel/Resuming And All Other Information

17 Jan 2016 by Ahmed Amer Jaf

Downloading files from the Internet with one line without Freezing Form

My API calls don't create transparent list view as they should

11 Jun 2013 by Ahmed Bensaid

Take a look at : In C#, how to make listview background Transparent

Easy way to simulate keyboard press and release keys

6 Mar 2013 by Ahmed Elkafrawy

An easy way to simulate keyboard press & release keys to another application

Implementation of an Easy, Fast, and Optimized (CByte, CShort, CInt) with Bits Access Using Bit Field and Union

28 Apr 2017 by Ahmed Elkafrawy

Implementation of an easy, fast, and optimized (CByte, CShort, CInt) with bits access using bit field and union

How to Create a Custom Jumplist with Custom Events in Windows Forms

23 Oct 2010 by Ahmed_Said

Creating a custom Jumplist with custom events and examining all of its features in Windows Forms 3.5

dlls not working....

14 May 2012 by ahsanriaz1K

Hi,I have a VS2005 solution having one project of C++ console application and more than one library projects.When i run the c++ console application , command prompt appears but vanishes immediately. I have a lot of break points in this application. Some time before it was stopping at console...

dlls not working....

14 May 2012 by ahsanriaz1K

I recompile the whole solution. I think a rebuild was required.Problem solved.

POP3 Client using Sockets

13 May 2008 by aisha.ansari

post office protocol to retrieve mails

Detect SAM File Corruption under Windows 7 (Part 1)

10 Apr 2016 by AIT SALEM BOUSSAD

This first part of the article presents how to inject a DLL inside lsass process by using Windows service

How to Call Java Functions from C Using JNI

12 Jan 2008 by ajalilqarshi

This article covers calling Java functions from C using JNI. It also covers passing/returning simple parameters, arrays, and structure arrays in Java functions.

The Practical Guide to Multithreading - Part 1

6 Apr 2010 by Ajay Vijayvargiya

Learn from this guide how and when - as well as when not - to use multithreading.

The Practical Guide to Multithreading - Part 2

12 Apr 2010 by Ajay Vijayvargiya

More of practical situations to use multithreading!

Concurrency Runtime in Visual C++ 2010

11 Nov 2010 by Ajay Vijayvargiya

Learn about parallel algorithms, parallel containers, tasks, task groups, agents library, task scheduler etc in VC10

Formatted MessageBox/AfxMessageBox

20 Oct 2010 by Ajay Vijayvargiya

Need to Format/sprintf a string before displaying a messagebox? Here is solution!

Writing Windows Debugger - Part 2

10 Jan 2011 by Ajay Vijayvargiya

Let's enhance our Debugger!

What are TCHAR, WCHAR, LPSTR, LPWSTR, LPCTSTR (etc.)?

19 Apr 2012 by Ajay Vijayvargiya

Many Windows C++ programmers get confused over what bizarre data type identifiers like TCHAR and LPCTSTR are. Here, in brief, I will try to clear out the fog.

Writing a basic Windows debugger

24 Jan 2011 by Ajay Vijayvargiya

Learn how you can write your own Windows debugger.

How to get Domain information about AD users when there is no network?

18 Sep 2011 by Ajesh Novell

Hi,I am using NetWkstaGetInfo() , TranslateName() & NetGetJoinInformation() API to query information for AD users like get the computer name for the remote server, convert upnames to other formats etc. These API's works fine when I am connected to network but when my network is down, these...

LsaLookupNames() API failing with error code 1789...

21 Sep 2011 by Ajesh Novell

Hi,I am calling LsaLookupNames() API for a domain user and it is failing with error code 1789 i.e untrusted connection. Before calling LsaLookupNames() I was succesfully calling LsaOpenPolicy() with POLICY_ALL_ACCESS flag. Can anyone suggest me a method to suppress this error or how to make...

Yet Another Spy

28 Dec 2014 by Akos Mattiassich

Find a window on the desktop, spy its properties and manipulate it.

detect com port interrupt

17 Apr 2011 by Akos Szabo

Hi,I have an issue. I have to detect a slow TTL sign and measure the time between to signs. I do not want to build a circuit for this. My idea would be to connect the source of the sign to a COM port (USB/RS232). Change on any of the control line (DTR, RTS) causes an interrupt. Hooking the...

How these Win32 classes are related to each other?

18 Mar 2014 by ala deli

can anyone explain to me the realation between these classes:-Win32_DiskDrive-Win32_LogicalDisk-Win32_Volume-Win32_DiskPartition

Design WinForms Controls using Photoshop

2 Nov 2019 by Alaa Ben Fatma

Use your skills as a designer to create gorgeous control

.NET-Compiler-Platform

Mixing .NET and native code

7 Apr 2014 by Alain DOS REIS

A first approach to mixing .NET and native code, using the C++/CLI gateway.

Integrate the OpenOffice.org Power in a WTL (or Other Native Win32) Application

18 Feb 2009 by Alain Rist

OOo::DocWindow and WTL::COOoCtrl classes to work on any Microsoft-Office document, and Open Office SDK integration in Visual Studio/VCExpress 2005/2008

Relook your Old and New Native Applications with a Ribbon UI under Vista or Windows 7 (WTL)

12 Apr 2010 by Alain Rist

Including a Ribbon UI Implementation Guide with examples and a dual UI enabled legacy application

Reading PNA serial port - bytes are mixed?!

19 Jul 2010 by Alain Rist

I've written my own serial handling functions, they work great,I've tested them.Hmm, they don't seem to work that well :) You need a listener thread filling some buffer with the incoming characters and signalling the main thread when a full sentence is ready.The main thread should...