Why don't you just create a static class and put the variable in there (don't forget to make it public static as well). Then you can get to it from anyplace in the program.

VC9.0

C++

Designing Dialogs in MFC

27 Nov 2010 by #realJSOP

Install programs are nothing more than Wizard forms. I believe that MFC already has a Wizard dialog class (it's been 4 years since I did any C++, so the memory is hazy). Google is your friend.

VC9.0

C++

GetLastError() returning 5 on CreateFile

19 Jan 2011 by #realJSOP

That error is "Access denied". http://msdn.microsoft.com/en-us/library/ms681381(v=vs.85).aspx[^]

how to retrieve a value from the cmd

4 Sep 2011 by #realJSOP

On MSDN - ParseCommandLine[^]A very simple google search...

VC9.0

C++

MFC

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, ...

DataGridView VS2008 MFC

28 Oct 2010 by 2buck56

I have an existing VS2008 MFC application that I need to add user functionality to. The cleanest way to do this is with a DataGrid form of some sort. Since the DataGridView control is not in the toolbox I tried this Microsoft method:http://msdn.microsoft.com/en-us/library/b1kyh79x.aspxThe...

DataGridView VS2008 MFC

28 Oct 2010 by 2buck56

JF2015,Tha...

DataGridView VS2008 MFC

28 Oct 2010 by 2buck56

I finally got it working. Since there was nothing under the Projects tab I clicked browse, traversed to where the WindowsFormsControlLibrary1.dll file was, selected that and then clicked OK. Next I clicked Apply and OK on the Properties Page.I then added all the MFC code shown in the article...

The Way to Calculate a Collection of Folders Size

25 Feb 2010 by 365days.enjoy

The way to calculate a collection of folders size with VC++

VC9.0

C++

How to send file from server to multiple clients at a time in mfc using sockets ?

20 Apr 2010 by @Intersect☺™

See this below link, this will assists you surely to serve your purpose Single Server With Multiple Clients : a Simple C++ Implementation[^]

Electronic Machine Controlling

2 Nov 2010 by abdul Rahman Muhiyidheen

I need some help to do the work. I'm assigned to develop a software to control the machine connected to USB port (Some machines is using serial port also). As a new one to this type, I need help to start the work.....Thanx, I appreciate your helpAbdul Rahman

How to draw round button

11 May 2010 by AbhiHcl

Hi,I have to create a round rect button with three images, one for left round shape one for middle portion of button and one for right side round shape. I just wanted to know how to add these round images on the button. So that button has a round shape. Here is my code in which I am able to...

MultiThreading in MFC

19 Jan 2010 by AbhiMFC

Hi I was trying to do sample code to understand multithreading in MFCI have a scenario as mentioned below.Thread A ->Should Write to a bufferThread B ->Should Write to buffer after Thread A completesThread C ->Should Write to buffer after Thread A and B completes .Thread D...

VC9.0

C++

Application not running on Non Developer systems

10 Nov 2010 by Abhinav S

Check that you have the right .Net framework (+ updates) installed on the non-developer system.

C++

VC9.0

C#3.0

MSBuild : Build type(Debug / Release)

30 Jan 2011 by Abhinav S

Have a look at the properties section as described here[^].Properties="Configuration=Debug;"

Using C# class in VC++ without using the dll

15 Feb 2011 by Abhinav S

I dont think there is a way other than COM interop that can help you achieve this.One is managed code and the other is unmanaged code.

VC9.0

C++

Getting CD-DVD Drive Speed information

14 Jul 2011 by Abhinav S

This[^] might help you get started.

Win32 x86 Calling Conventions

4 Apr 2017 by Abhineet Ayan Verma

Major calling conventions for Win32 and best suited functions

Capture Live Video from various Video Devices

29 Nov 2009 by Abhishek Sur

I think all those errors are coming because the program cant include dshow.h. Check the installation. :)

VC9.0

SEH vs C++ exceptions

6 Feb 2014 by Adamanteus

Intercepting SEH exceptions in C++ program

Bouncing Balls in OSG

29 Aug 2008 by Adrian Savage

Simulation in OSG using discrete events, a Ternary Heap and Interpolation

How to get a value to a dialog from another dialog ?

31 Jul 2010 by Aescleal

If you have two dialogues that have to communicate why not do something radical like pass the address of the one data has to be fetched from to the constructor of the one that wants to consume the data?Then you don't have to mess about calling global functions, casting (you might like to use...

VC9.0

C++

A C++ Websocket server for realtime interaction with Web clients

17 May 2012 by Ahmed Charfeddine

A Websocket protocol implementation atop the ush Framework real time library plus a demo example featuring four types of communication workflows between the HTML5 web client and the server.

An Idiot's Guide to C++ Templates - Part 1

16 Jan 2013 by Ajay Vijayvargiya

Covering the nitty-gritties of C++ templates.

An Idiot's Guide to C++ Templates - Part 2

1 Jul 2012 by Ajay Vijayvargiya

Let's dwell deeper into C++ templates!

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

SimpleDiff: A Simple File Comparison Utility

3 Sep 2009 by Alain Rist

A submisson to the CodeProject Lean and Mean challenge.

Designing Dialogs in MFC

27 Nov 2010 by Alain Rist

Hi Reza,1: See the MFC CPropertySheet and CPropertyPage[^] classes and the CPropertySheet::SetWizardMode()[^] member.2: From Visual Studio 2008 SP1 a large set of interface elements[^] has been added to MFC. They can be used to compose something like your screenshot. Work ahead :)...

VC9.0

C++

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

VS 2008 .lib linker relative path

26 Feb 2011 by Albert Holguin

I use "..\..\myproject\debug\A.lib" (of course use your own relative path) defined as "Additional Dependencies" in the Project->Properties->Linker->Input options to do this very same thing in VS2008. Works well for me.

VC9.0

C++

Visual-Studio

WDK Error (Including ndis.h)

11 May 2011 by Albert Holguin

Again, here's a decent article on why the "No target architecture defined" error comes up, there's environment variables missing that are usually set up by other files:http://mcdermottcybersecurity.com/articles/64-bit-device-driver-development[^]

VC9.0

VC10.0

C++

VC9: What does USES_CONVERSION do?

17 May 2011 by Albert Holguin

As you can see from the definition:#define USES_CONVERSION int _convert = 0; (_convert); UINT _acp = ATL::_AtlGetConversionACP() /*CP_THREAD_ACP*/; (_acp); LPCWSTR _lpw = NULL; (_lpw); LPCSTR _lpa = NULL; (_lpa)its just initialization for other macros...

VC9.0

C++

Exception Handling in mfc

30 Nov 2011 by Albert Holguin

Just check the size before you try to access it using GetUpperBound()CStringArray arr;arr.RemoveAll();CString tst;int i=1; //for testingif( i

Unhandled exception when call vc++ dll in vc++ code

19 Jul 2012 by Albert Holguin

Quote:var = (LPVAR)GetProcAddress(hDLL, "Ver_C");The "Ver_C" should match the name of your exported function exactly. Make sure you have a function named that, if you don't, that's your problem. If you do have a function named that, make sure it was a C-style export or else the name...

VC9.0

C++

DLL

Shell Extensibility - Explorer Desk Band, Tray Notification Icon et al.

28 Aug 2009 by Alex Blekhman

A simple Calendar utility that demonstrates basic Shell extensibility techniques: desk band, tray notification icon, locales.

A C++ Plug-in ThreadPool Design

22 May 2008 by Alex C. Punnen

The Command Pattern and Chain of Responsibility for implementing a plug-in Thread Pool library.

Using C++ templates for functions and operators

3 Jun 2008 by Alex Hazanov

Example on how templates can help you to generalize your code

High Scores in Solitaire: A More Advanced Approach

28 Sep 2008 by AlexAbramov

This article explains how to make a plug-in for Solitaire that displays a high score table. By way of Codecave, Solitaire will automatically execute a DLL for this plug-in -- thus no user intervention required!

Reverse Engineering and Function Calling by Address

24 Sep 2008 by AlexAbramov

Ever wanted to know how to call internal functions of other processes? This is an article on just that -- you'll learn how to read disassembled code in a project where the source code is known, and then apply that knowledge on an application where it isn't.

Text Editor: The Basic of Basics

10 May 2009 by AlexShag

This is a simple text editor based on Edit control

A Beautiful Oscilloscope Based on DirectX

1 Nov 2009 by Ali Tavakol

Fast, real, and easy to connect to your application.

A Powerful Spectrum Analyzer Based on DirectX

7 Nov 2009 by Ali Tavakol

Fast, beautiful, real and easy to connect to your application

How to place an icon in the notification tab?

18 Nov 2011 by Amir Mahfoozi

Here is a good resource :Adding Icons to the System Tray[^]Hope it helps.

VC9.0

C++

Accessing class object present in exe from explicitly loaded DLL using Inheritance and virtual function

19 May 2013 by Amit Deshmukh 1010

Accessing class object present in exe from explicitly loaded DLL using Inheritance and virtual function.

create button with diff shapes.

4 Mar 2011 by amitpatel_ld

how to create button with different shapes in VC++ in MFC Windows based application?

Introduction to RPC - Part 1

22 Dec 2012 by Anders Dalvander

An introduction to RPC programming. A simple RPC client/server application is explained.

Building project options

21 Jan 2011 by Andrew Brock

This could be quite tricky, as the library will be built with a different version of the CRT (and possibly MFC if it uses that too). The only thing that should really matter is the linking to the CRT in Properties>C/C++>Code Generation>Runtime Library. This should be set to what it was set to...

C++

VC9.0

VC6

Reading the $mft file from an NTFS drive

7 Feb 2011 by Andrew Brock

You will need to open the HDD (or better yet, just the partition) with direct access, then write your own file system library. You were pretty much doing this. Just use "\\\\.\\C:"The good news is that this is not as hard as it sounds.I would STRONGLY reccommend getting a hex editor. I...

Application Verifier [ Application crashing on Close ]

17 Feb 2011 by Andrew Brock

The C++ compiler will add its own statements to the destructor to destruct any member variables that are a class type.Consider this:class A { public: A() { m_szMessage = new char[10]; } ~A() { delete []m_szMessage; } private: char *m_szMessage;};class B...

Perform a task each time computer is unlocked

22 Feb 2011 by Andrew Brock

Check out WM_WTSSESSION_CHANGE on MSDN[^].wParam == WTS_SESSION_UNLOCKNot sure if this is send on a suspend (sleep), you may need to handle WM_POWERBROADCAST[^] as well.For future reference, I found this by opening up Spy++ from the Visual Studio Tools menu and spying on messages sent...

C++

VC9.0

VC8.0

VS 2008 .lib linker relative path

26 Feb 2011 by Andrew Brock

1. It seems rather trivial, but make sure project A is compiled and archived before project B is archived.You can do this by setting project dependencies by right clicking any of the projects A and selecting Project Dependincies.2. Not sure if environment variables in VS are case...

VC9.0

C++

Visual-Studio

How to avoid this exception using try catch block?

7 Nov 2011 by Andrew Brock

This is a compile time error. Make sure you spelt the variable name correctly and that it exists in the class definition for Meal.Additionally, return m_KitchenNote; will not throw any exceptions, so there is no need for a try/catch here.

VC9.0

C++

list all available usb drives in mfc vc6?

21 Nov 2011 by Andrew Brock

1. Perhaps try http://cboard.cprogramming.com/windows-programming/114294-getting-list-usb-devices-listed-system.html[^]2. No idea, there is probably an API somewhere, or a registry key. At least the Windows Firewall has an API documented on MSDN[^]3. These live in 2 basic locations. The...

define variable by macro in VC++

10 Dec 2010 by Andrew Phillips

When you invoke the macro using: mcr_defineVar("int",a);the first parameter to the macros is the 5 characters: "int"This parameter is substituted into the macro text (for t) verbatim. There is no way to avoid that. You can't get rid of the double-quotes.However, the real...

Adding Context Sensitive help to existing dialog based application

26 Sep 2011 by André Kraak

I was able to find the following:Adding Context-Sensitive Help to an Existing MFC Application[^]Q149343 - HOWTO: Implement Context-Sensitive Help for Dialog Controls[^]Q241218 - HOWTO: Implement HTML Help Text Pop-Ups in an MFC Application[^]TN028: Context-Sensitive Help...

Easy Command Line Service

16 Nov 2012 by Andy Bantly

An easy DOS framework for creating and managing a service

Easy AVI

5 Dec 2012 by Andy Bantly

A class to aid in creation of AVI files

VC9.0

C++

Windows

File reading in C/C++ common for Linux and Windows

9 Mar 2012 by Andy Rama

To read binary data from a file, I have written a code as follows,int fd = open(sFilePath, O_RDONLY, 0); //BINARY READ OPERATIONint iBytesToRead = 100;unsigned char* pBuffer = new unsigned char[iBytesToRead];while(true){ int iReadBytes = read(fd, pBuffer, iBytesToRead); if(...

VC9.0

C++

Linux

How to send file from server to multiple clients at a time in mfc using sockets ?

17 Mar 2010 by Anthony Mushrow

You may want to use a multicast socket, which would send the data simultaneously to any clients.I've not done anything with it myself, but here are some links that you may find useful:Wrapper Class for setting up a multicast socket here[^]MSDN Pages on the subject, including example...

C++ Object destruction event

8 Aug 2012 by Antonyxt

vtable modification and destruction event handling

VC9.0

C++

Writing a XSD Parser in VC++ regd.

20 Feb 2011 by aravindkrgec

Hi,I'm new to VC++ and now I need to write an xml parser using xsd. I have no idea of anything about it. Can you give me a sample code or any information about how to do it. Any help will be greatly appretiated.

C++

VC9.0

VC8.0

Perform a task each time computer is unlocked

22 Feb 2011 by aravindkrgec

Hi everyone, This time I'm asking a crazy question. I think you won't mind it. I want to write a program that reminds me something each time when I unlock the computer. How can I do it? Do I want to add the program into the startup? How would I know that a computer is unlocked? i.e. how...

C++

VC9.0

VC8.0

XSD to XML Conversion in vc++ without .net framework

23 Feb 2011 by aravindkrgec

Hi, Now I've another problem. I have to generate a xml file from an xsd file in vc++ without using .net framework(which otherwise is a much easier task).The method I think is to parse the xsd file and insert the values for the coresponding tag. Now the actual problem is how to...

C++

VC9.0

VC8.0

Unable to Call Function in VC++

22 Feb 2011 by aravindkrgec

Hi, Just as Olivier said, check the validity of the strings. Also check the value of resp, the return value. By the way did you debug the code to see where the actual problem is.....

VC9.0

C++

How to parse a XSD File to view its contents

23 Feb 2011 by aravindkrgec

Hi every one, My problem is to create an xml file from a xsd file. The thing i want is to know how can I parse the xsd file to know its attribute and type? Also the hierarchical order should be known. I surfed the net and theresult was not fruitful. Most articles where to validate the xml but...

C++

VC9.0

VC8.0

Writing multisessional CD/DVD in vc++

9 Mar 2011 by aravindkrgec

HI, I want to write data into a cd and want that cd to be multisessional. I got various such articles in C# and VB. But I want to implement it in VC++. I edited the code given in Burning CD/DVD Media with the Image Mastering API Version 2.0 (IMAPI2)[^] but no use. I could only get the...

C++

VC9.0

VC8.0

Create Simple Palette Animation

26 Dec 2009 by Aric Wang

To show you how to create a easy animation with palette

To Create A COOL Desktop Lyrics Demo (A Gift To All People On CP)

1 Jan 2010 by Aric Wang

Many popular MP3 players have cool desktop lyrics, this demo uses a simple method to realize it. Happy new year!

A Recording and Playing Thread Class

17 Jan 2010 by Aric Wang

This is a class derived from CWinThread class. It is used to record and play sound in the specific thread.

A Brief Tutorial On How To Develop DirectShow Source Filter For Beginners

22 Feb 2010 by Aric Wang

The article will give you an idea on how to design a source filter.The source filter creates samples and outputs it from its output pin.

Simple Class Used To Get Current Webpage's Net Speed

4 Apr 2010 by Aric Wang

Really a tiny class, used to get the currently webpage's net speed you are opening

Export Web Browser's Favorites To XML File

6 Apr 2010 by Aric Wang

The aritcle gives you a way to export web browser's favorites.

CRichEditCtrl Does Not Take the Return

6 Mar 2014 by Arkadiusz@inquiry

CRichEditCtrl does not take the return

Need to click on button in the embedded browser.

17 Jul 2012 by armagedescu

First of all, see in the chromium project, there are many unit tests. Look inside and do the same.But if you like to test the HTML page, then you would better use plain JavaScript. You will have full access to all HTML functionality.

VC9.0

C++

Chromium-embedded

exe to exe communication

8 Feb 2012 by Ashish Tyagi 40

So you are on windows-Try any of these.ClipboardCOMData CopyDDEFile MappingMailslotsPipesRPCWindows SocketsWell Data Copy^ and Pipe^ would be easy options.

Device hooking

25 May 2012 by Asif Bahrainwala

Device hooking

Problem in decreasing the size of toolstripmenuitem in vc++.net

27 Nov 2009 by AspDotNetDev

Select each menu item and set the padding and margin to 0.

VC9.0

How to use functions embeded Access 2003 such as "POWER(),LN()",while using VC++ to operate Access DataBase?

29 Nov 2009 by AspDotNetDev

Have you tried:UPDATE TableName SET Result = 2 ^ 2

VC9.0

ADO

How to use functions embeded Access 2003 such as "POWER(),LN()",while using VC++ to operate Access DataBase?

29 Nov 2009 by AspDotNetDev

So, what you really want to do is call VBA functions from MS Access queries? This page explains how to do that.

VC9.0

ADO

How to use functions embeded Access 2003 such as "POWER(),LN()",while using VC++ to operate Access DataBase?

29 Nov 2009 by AspDotNetDev

I don't really follow you. If you want to use a VBA function in an Access query, just create your own UDF that wraps that VBA function, then you can use that UDF in your Access query. And if you want to use some Access query function from VC++, you can make database calls to an Access DB from...

VC9.0

ADO

VC9: What does USES_CONVERSION do?

17 May 2011 by barneyman

it would appear to be shorthand for creating a couple of locals on your stack for some bstr/wstr functions ...http://www.codeproject.com/Messages/1870028/Re-USES_CONVERSION.aspx[^]

VC9.0

C++

unicode excel file in VC++ 2008

9 Jun 2011 by barneyman

you can either use the OLEDB driver for Excel, or use the Excel object model to get to the dataThe former is quite difficult to understand from a standing start, the latter may be slower if you're handling lots of dataThere was this[^] article on codeproject that talked about the various...

VC9.0

C++

MFC activex control using directx features.

4 Aug 2011 by barneyman

if all you want to do is draw lines and curves, and you have no complex viewing requirements, DirectX is overkill - simply use GDI, or GDI+Create a CPaintDC in your OnPaint method, then use the methods in the base CDC class

unable to display png in my application after msi installation

14 May 2012 by barneyman

have you run it under a debugger after it's been installed? I assume you're building release for install - have you tried running the release build to see its behaviourCompile it under release with no code optimisations, program database (/od and /Zi respectively)Link with /DEBUGYou...

Unhandled exception when call vc++ dll in vc++ code

19 Jul 2012 by barneyman

The docs for GetProcAddress[^] say it returns NULL if if failsYou're getting a NULL back (i worked that out from the exception) and you've got zero error handling in there

VC9.0

C++

DLL

MySQL XML User Defined Functions

7 Apr 2010 by BarrySolomon

Support for Reading XML in MySQL

How to change the pitch,tempo, beats per minute for a music file?

9 May 2012 by Bernhard Hiller

The simplest thing you can do is changing the sampling rate in the header of the file. The effect is like playing a tape/record at lower or higher speed.Do not change bits per sample, that will result in garbage.If you want to change effects independently, you'll have to do terrible maths....

Solving Starvation in Dining Philosopher Problem: Using Inverse Semaphore

2 Jun 2008 by Bharath NS

Multithreaded GUI solution for starvation in Dining Philosopher problem

define variable by macro in VC++

8 Dec 2010 by BinhTC

The macro to define a variable is://Define macro ============#define mcr_defineVar(t,v) t v;//Use====================== mcr_defineVar(int,a); //same as int a; a = 10; // =>a = 10;But I want to do some...

Change ICON of MFC Application and Dialog

19 Jun 2012 by Binu MD

Change the default ICON of MFC applications

Which is the best design pattern for Video Player

19 Feb 2013 by Binu MD

Hi,Am looking for C++ design pattern for Implementing a Video Player.Welcome your valid suggestions.

VC9.0

C++

MFC

How to get a value to a dialog from another dialog ?

3 Aug 2010 by bleedingfingers

If the application is not supposed to be multithreaded and fairly simple, using good old global static variables will get you by this.For data exchange, use the relevant event handlers.Since you haven't posted anything but just a line of code, out of context, I assume that what you need...

VC9.0

C++

How to remove the edit control 's border dynamically?

20 Aug 2010 by bleedingfingers

MSDN is your friend. Install it if you don't already have it. Search it before jumping to post a question on the net.Any UI elements you add from the property board is present, as code, in the .rc file. Open that in the notepad (visual studio doesn't display the textual version) and ...

Cross-platform C++ Template Solution for Drawing GPS Data for a Third-party GIS

21 Dec 2008 by Boris Kolesnikov

Generates PNG files called tiles which form a layer on a GIS map

Building a Programming Language: Part II (Adding Conditions, Loop and Blocks to BrainLess)

11 Oct 2013 by BrainlessLabs.com

In this article, we will discuss implementing conditional statements, loops and blocks.

Synchronized Enterprise File Versions

20 Nov 2009 by Brett D Johnson

Automate file version updates for large suites of C++, C#, and VB apps.

How to change the pitch and tempo of a sound

24 Sep 2011 by Calinyara

This article shows how to change the pitch and tempo of a sound.

MultiThreading in MFC

19 Jan 2010 by Cedric Moonen

In addition to Carlo's answer: are you sure you want to have that many threads ? If the processing is sequential, I don't really see a reason why you want to split that up into that many threads. Why not having only one thread doing all of that ?

VC9.0

C++

Writing a XSD Parser in VC++ regd.

20 Feb 2011 by Cedric Moonen

If you have no idea about anything about it, I suggest you first start to learn about xml and xsd, it will help a lot to communicate with others about the subject. There are some good tutorials here[^]: you have to look in the XML section, there is an entry about xml and an entry about schema...

C++

VC9.0

VC8.0