Of all your questions I've attempted, this is the toughest one, Christian.First off, .NET and C++ (I will say only C++ in this message. But, When I say C++, include the frameworks and libraries built on and around it - MFC, ATL, WTL, etc.,) are...

C++/CLI

C++

ATL

WTL

STL

MFC

BUG in _com_util::ConvertStringToBSTR and _com_util::ConvertBSTRToString

16 Jul 2002 by soptest

How MS implements them and why they do not want you to see the source code of those functions.

Web Application - Advanced Hosting of WebBrowser Control with ATL

14 Oct 2009 by Alex Blekhman

Example of handling real-life challenges when hosting WebBrowser control: separate creation of hosting window and the control, keyboard shortcuts, control's dimensions, etc.

DCOM D-Mystified: A DCOM Tutorial, Step 6

8 May 2005 by Brian C Hart

We build our new server and install it on the server machine.

Vista Goodies in C++: Monitoring the Computer's Power Status

29 Dec 2006 by Michael Dunn

How to use power status notifications to make your applications conserve power when necessary.

Windows 7 Goodies in C++: Adding Custom Tasks to Jump Lists

29 Jun 2009 by Michael Dunn

Create custom tasks in your app's jump list on Windows 7

Migrating ATL service applications to Visual C++.NET

30 Jul 2002 by Vagif Abilov

Guidelines to migrate ATL-based Windows service application to Visual C++.NET

Developing MMC Snap-Ins using ATL

4 Jun 2001 by Leon Finker

Describes how to add various Microsoft Management Console UI items using ATL

SQL Server: Query to find upcoming birthdays for the current week

13 Sep 2012 by Wendelius

This is an alternative for "SQL Server: Query to find upcoming birthdays for the current week"

DCOM D-Mystified: A DCOM Tutorial, Step 5

11 Aug 2000 by Brian C Hart

We look at connection points and set up the server's end of one. We'll also finish implementing our SayHello() method.

Pluggable Components using Component Categories - Part II

18 Sep 2003 by Zac Howland

An article on using component categories to create pluggable components

Random Name Generator

13 Aug 2009 by Stuart Dootson

The way I'd approach it is like this:1. Define functions that return random voewls and random consonants - here's a random vowel function:char RandomVowel(){ const char vowels[] = {'a', 'e', 'i', 'o', 'u'}; // Use rand() to get a number...

Font Enumerator

1 Sep 2009 by PARK Youngho

A tool that enumerates all fonts installed on Windows, and shows you the preview so as to help you code conveniently.

How do I overload a function

12 Oct 2009 by Jörgen Sigvardsson

In addition to what Stuart said, if you really don't want to change the function signature from floatto double, you can always use literals that are typed as float. If you add the suffix f to the floating point numbers, they will be typed float.Your examples would then be function(1.2f, 2f) and func

Elevating your application for dummies: A step-by-step guide to elevate and write in the Registry

8 Apr 2009 by joseangelmt

We are going to enable your application to write entries in HKEY_LOCAL_MACHINE, elevating your application when necessary.

USB and CD ROM Enable/Disable

22 Aug 2008 by Perspx

I don't know about removing power but you can lock volumes with DeviceIoControl() with the FSCTL_LOCK_VOLUME which means that your process has exclusive access to that volume. Take a look at the documentation here. You could do this with the CD...

Can I use select instead Sleep?

17 Oct 2009 by Rajesh R Subramanian

hanlei0000000009 wrote:I need my program sleep 1 microsecond, but Sleep() can not do this.Neither can any other API do this (under Windows). Windows was never designed to provide this kind of functionality (it is not a real-time OS). If you use something like Sleep(2), your program may sleep for 2 m

Outlook Bar Control and Frame (WTL)

27 Jun 2001 by Rashid Thadha

An outlook control and framework that can be used in your WTL Application

Adding Custom Pages to Control Panel Applets

3 Apr 2001 by Michael Dunn

This article shows how to add your own pages to Control Panel applets by writing a property sheet handler.

SppMk - a unit testing and GNU make support add-in for Visual Studio 6.0

11 Jul 2002 by Pavel Kobyakov

A DevStudio add-in described provides two interesting IDE integration features: adding a new tab to VC WorkspaceView window and running an arbitrary process under IDE with output sent to "Build" tab of VC Output window.

USB and CD ROM Enable/Disable

22 Aug 2008 by Jijo.Raj

ameyakoshti wrote:1st of all i want to know whether it is possible to disable usb portsTo disable USB ports, check this[^]. You have to programatically access the registry and set the key.ameyakoshti wrote:and CD rom "POWER" through VC++.I hope...

How to show '&' character not underline

30 Jan 2009 by CPallini

"text && text" If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler. -- Alfonso the Wise, 13th Century King of Castile.This is going on my arrogant assumptions....

DCOM D-Mystified: A DCOM Tutorial, Step 4

11 Aug 2000 by Brian C Hart

Here we add a method to our DCOM-remoted object, and start on implementing its functionality.

ATL Server Tutorial - TipOfTheDay

18 Apr 2001 by Erik Thompson

Create an ATL Server to generate random tips using a Server Response File

Icon Extractor Shell Extension

27 Aug 2001 by George Anescu

A context menu handler shell extension for extracting icons from .exe and .dll files

ATL PersistXML implementation

28 Jul 2003 by Katasonov

Easiest way to add XML persistence to an existing IDispatch based ATL COM object.

Adding Macro Scripting language support to existing ATL/WTL Application

30 Sep 2002 by Ernest Laurentin

Shows how to use Microsoft Script Hosting inside existing ATL/WTL Application

USB and CD ROM Enable/Disable

22 Aug 2008 by vikas amin

its simple by modifying the registery , check this linkhttp://forums.msdn.microsoft.com/en-US/vcgeneral/thread/15469774-bd67-4bed-b797-32a899eb79d3[^] Vikas AminMy First Article on CP" Virtual Serial Port "[^]modified on Thursday, July 24, 2008...

MFC Application class

2 Aug 2009 by «_Superman_»

In an executable, there must be one entry point that can be called by the loader, runtime etc.There cannot be any ambiguity here.That is why we can have only one main function in a console program and only one WinMain function in a windows...

Disable esc key exit for MFC Application

8 Aug 2009 by David Crow

See here. "Old age is like a bank account. You withdraw later in life what you have deposited along the way." - Unknown"Fireproof doesn't mean the fire will never come. It means when the fire comes that you will be able to withstand it." -...

Create file with certain size

13 Feb 2009 by «_Superman_»

SetEndOfFile can be used to extend or truncate a file. «_Superman_»

creating a transparent window

26 Feb 2010 by Eugen Podsypalnikov

There are two steps:// Set WS_EX_LAYERED on this window SetWindowLong(hwnd, GWL_EXSTYLE, GetWindowLong(hwnd, GWL_EXSTYLE) | WS_EX_LAYERED);// Make this window 70% alphaSetLayeredWindowAttributes(hwnd, 0, (255 * 70) / 100, LWA_ALPHA);Here is only one variable hwnd - handle...

C++

COM

ATL

Setting Properties with OLE Automation

5 Aug 2000 by Konstantin Boukreev

Describes an ActiveX Control to use OLE Automation to set an object's properties.

STL-set difference and intersection

22 Apr 2009 by Stuart Dootson

Use std::inserter[^] or std::back_inserter[^] for the output iterator. That causes the items to be inserted into the container without having to know what size it should be before you've constructed it.If you're using a vector or list as the...

Quiz or test program help needed

3 Aug 2008 by hoxsiew

int count; // Loop counter variableint correct;char correct_answers[count] = {B, D, A, A, C, A, B, A, C, D, B, C, D, A, D, C, C, B, D, A}This can only cause problems. correct_answers[count] should probably be correct_answers[NUM_QUESTIONS] since...

Exact type of HGDIOBJ (pen, brush, font, etc.)

1 Aug 2009 by Bacon Ultimate Cheeseburger

Simply make a call to GetObjectType().

CFileDialog::HideControl() broken

13 Aug 2009 by Stuart Dootson

Using Spy++ on a sample application I just built, it would seem that instead of edt1, you now want to use cmb13 (0x47c). I guess they decided that as that field is (now) actually a combo-box, that would be a better ID to use. Java, Basic, who...

class instantiation

13 Oct 2009 by Cedric Moonen

No, you can't select the type of the class this way. However, by using pointers (or references), you can manipulate all buildings the same way by manipulating pointers to the base class (this is called polymorphism, google for it if you want more information).What you want are virtual constructors,

Outlook add-in using VC++ ATL/COM

5 Feb 2013 by Gokulnath007

To get instant control over Outlook and various operations of outlook.

Drawing complex ATL/ActiveX controls at designtime

30 Nov 1999 by Gerolf Reinwardt

An article that discusses drawing a control at designtime

"Select Computer" Dialog

16 Apr 2001 by Igor Sukhov

The ATL and MFC versions of the class that implements a dialog for selecting users(computers) within the Windows Network.

WTL wrappers for WinMain's CodeMax syntax highlighting edit control

28 May 2001 by Ben Burnett

An article on the CodeMax editing control.

cannot open include file 'atlres.h'

19 Dec 2008 by Stuart Dootson

I think you need to add the WTL include directory to the include directory path for the resource compiler. Right-click on the project, select 'Properties', select Resources->General in the properties window and add the WTL include directory to...

STL-set difference and intersection

21 Apr 2009 by liquid_

How to compute difference and intersection of two sets?There are functions set_difference and set_intersection which requires two pairs of iterators of source sets and output iterator of resulting set. Here, set can be any sorted container with...

Variable scoping and pointers

22 Sep 2008 by Christian Flutcher

I am progressing with my C++ learning. I am stuck with the following code. void ChangeData(int** ptr){ int ab = 1000; // scope in this method *ptr = &ab;}int _tmain(int argc, _TCHAR* argv[]){ int a = 10; int* aPtr = &a; ChangeData(&aPtr); cout...

Variable scoping and pointers

22 Sep 2008 by Russell^'

The variable is destroyed, but not the contents.You know the abbress s you can continue to check it's value...but, as you sad, it is wrong, so do not do it. The system can use the same locatio of that variable in any moment after that the...

Variable scoping and pointers

22 Sep 2008 by Cedric Moonen

Christian Flutcher wrote:I am confused how this is happening?Because you were lucky (or in your case, not ). In your ChangeData function, your local variable has a certain address which you store in your ptr variable. When the function exits,...

Converting CString to char*

10 Oct 2008 by led mike

Gut Mikh Tappe wrote:Please let me know what to do Ok I will try. What you need to do is read the documentation.[^]Also reading this might help as well.[^]In my experience not all authors match every reader. So if you find reading those sources...

Resource file opening problem

10 Dec 2008 by Kiran Pinjala

Hi,I have creted a MFC SDI project in VC 2008 and compiled in Vista OS. Now when i copied the project into XP OS system and opened. I can open all views(class view, solution explorer...) but the resource view...it is showing a MessageBox statingA...

Get drive letter of Hard drive

29 May 2009 by «_Superman_»

Call GetLogicalDrives to get all the available drive letters.Call GetSystemDirectory to get the drive which contains the OS.Open the volume using CreateFile("\\.\C:", ...Here replace C: with the drive letter returned in GetSystemDirectory.Call...

File Sharing (not)

1 Jul 2009 by David Crow

Caslen wrote:If it is my problem is there anyway to detect programatically whether a file is already open somewhere else?Open it exclusively. All other attempts will fail. "Old age is like a bank account. You withdraw later in life what you...

CDialog OnCreate vs OnInitDialog

1 Aug 2009 by «_Superman_»

OnCreate is called just when the application requests that the Create function be called. So it is not guarenteed that the window is fully created. OnInitDialog is called after the window (in this case the dialog) is completely created.When you...

Can I use select instead Sleep?

16 Oct 2009 by Stuart Dootson

Yeah, that's not happening...Why 1 microsecond, FFS? What are you trying to do? Because there may well be a better way.

Union

3 Apr 2009 by David Crow

The union looks something like this:-----------------------| 512 |-----------------------| 00000010 | 00000000 |-----------------------| 2 | 0 |----------------------- "Old age is like a bank account. You withdraw...

IE BHO display a messagebox on toolbar button click.

21 Jan 2010 by Jast_in

You need to add a message handler to your button: ON_BN_CLICKED( BUTTON_ID, OnBtnClick )And, of course a function for that:afx_msg void ClassName::OnBtnClick(){MessageBox( "Some test text" );}I just tried it in my BHO for IE... works fine!

C++

ATL

IE BHO display a messagebox on toolbar button click.

22 Jan 2010 by Jast_in

Add this 2 blocks to your class source file:BEGIN_MESSAGE_MAP(YourClassName, YourBaseClass)ON_BN_CLICKED( BUTTON_ID, OnBtnClick )END_MESSAGE_MAP()afx_msg void YourClassName::OnBtnClick(){MessageBox( "Some test text" );}Add this line to your class header...

C++

ATL

printf like function question!

16 Oct 2010 by Aescleal

If you're using C++ there's no reason to use printf or the whole god awful family of C relics. Use a stream. Then you get type safety and you won't try reading return addresses off the stack to interpret as strings. Consider rewriting along the lines of:int main(){ int d = 20; ...

The difference between characters and TCHARs

25 Mar 2011 by Nuri Ismail

Have a look at this[^] nice CP Tip/Trick. TCHAR is well explained there. :)

C++

ATL

MFC

The difference between characters and TCHARs

25 Mar 2011 by mbue

For the first: TCHAR is not a type themselves - its a placeholder for the character type you use. This can be:* unicode characters (unsigned short or wchar_t)* ANSI characters (char).this depends on your project settings. You can plan your module to support both of them. Therefore you have...

C++

ATL

MFC

Using CAtlArray for a class member variable

6 Oct 2012 by Briti Sundar

May be you have missed to malloc first before insert into MyArray.MyDataStructure* pNewStruct;pNewStruct =(MyDataStructure* )malloc(sizeof(MyDataStructure));MyArray.Add(pNewStruct);Hope this will work.

C++

ATL

List Local Admins recursively

5 Mar 2013 by jan.mach71

A small tool listing Administrators group members recursively using the ActiveDS library.

Converting the CONNECT Sample to a Local Server

12 Aug 2000 by Paul Shaffer

An article on ATL COM event connection point threading issues

How to use Crypto API in your ASP projects.

28 Aug 2001 by Adrian Bacaianu

This article shows how to make one ATL COM component with crypt/decrypt functions and how to use it in ASP programs. It shows also how to register a component in MTS.

cannot open include file 'atlres.h'

19 Dec 2008 by josip cagalj

Hi to all. I'm trying to open some project wroted using WTL. When I try to rebuild it (using VS2008 on Win XP) I get the compile error as above. Now, "atlres.h" file is in directory which I added to my project settings properly and I don't know...

How to combine several file streams to one memory binary stream?

26 May 2009 by followait

I tried as below, but ostream cannot be instantiate?ifstream ifs1("file1");ifstream ifs2("file2");ostream oss;oss

How to combine several file streams to one memory binary stream?

26 May 2009 by Stuart Dootson

ostream is an abstract base class - that's why you can't instantiate it. Also, you can't use the insertion operator on streams to get what you're wanting.So...what do you mean by "memory binary stream"? If you were using strings, then this should...

printf like function question!

15 Oct 2010 by fantasy1215

Please run the code below.int main(int argc, char* argv[]){ int ii = 20; char tmp[32] = "loveing"; printf("[%d]hello[%s]\n", tmp); //no integer fill the %d format char szData[52] = {0}; sprintf(szData, "[%d]saying [%s]\n",ii);//no string fill the %s format printf("%s", szData); return 0;}The...

What happens when we lock same critical section twice?

9 Sep 2008 by SandeepNK

Sample code is as follows:class TestClass{CCriticalSection m_csTest;void Fun1() { m_csTest.Lock(); Fun2(); MessageBox("In Fun1 critical section."); m_csTest.Unlock();}void Fun2(){ m_csTest.Lock(); MessageBox("In Fun2 critical...

Is MFC obsolete?

25 Sep 2008 by Christian Flutcher

I know .NET framework and C# well. Recently I started working with C++/CLI which I felt more interesting than C#. Since .NET framework is becoming popular, do you think MFC got obsolete? Are you guys doing any projects in MFC other than...

Converting CString to char*

10 Oct 2008 by Mark Salsbery

In addition to super_ttd's reply...If you must use fopen(), then you should probably use a CStringA.CString has a generic internal character type, depending on whetherUNICODE or _UNICODE is defined.If you want to use the generic text CString,...

Bitmap size in memory

7 Jan 2009 by CPallini

I suppose it depends on color depth... See BITMAP struct definition [^], the bmBitsPixel member looks promising. If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler. ...

Edit control with HTML link

8 Jan 2009 by Code-o-mat

Take a look at this[^], might be usefull. > The problem with computers is that they do what you tell them to do and not what you want them to do.

Edit control with HTML link

8 Jan 2009 by Hamid_RT

OR see CRichEditControl50W - A VC++ Rich Text Edit 4.1 MFC Control[^]. Of one Essence is the human racethus has Creation put the baseOne Limb impacted is sufficientFor all Others to feel the Mace(Saadi )

question about my project.......

27 Jan 2009 by Garth J Lancaster

1) this sounds like homework - we dont do homework - at best we will give you hints, but if you're expecting us to jump in and solve all your issues, go to RentACoder or such 2) DONT GET IMPATIENT AND POST MORE THAN ONCE - most of us here have...

Performance problem with my FindOneOf function

22 Jun 2009 by Stuart Dootson

Member 4399131 wrote:I assumed that the problem isn't in my coding technique, it must be generally in the algorithm I use!!!Yep.Member 4399131 wrote:Does somebody know a better algorithm to implement FindOneOf???Looking at their code (strpbrk -...

MFC Application class

2 Aug 2009 by CPallini

Because there is only one application in your application... If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler. -- Alfonso the Wise, 13th Century King of...

Random Name Generator

6 May 2010 by sashoalm

Here's my try:#include using namespace std;int main(int argc, char* argv[]){ string name; static const int namelen = 15; static const char* letters[2] = { "bcdfghjklmnpqrstvwxyz", "aeiouy" }; static const letterlen[2] = { strlen(letters[0]), strlen(letters[1])...

CFileDialog::HideControl() broken

13 Aug 2009 by softwaremonkey

Hi,In an older (MSVC++6.0) project I used HideControl(edt1) to hide the filename edit control in a CFileDialog derrived class, which worked fine at the time.When I compile this project with MSDEV2008, the code complies OK but control is no longer...

Calling a COM interface from a worker thread

13 Aug 2009 by Stuart Dootson

Could you do all of the automation, including creation of the Word object, on the worker thread?Basically you're running foul of COM single-threaded apartments and things, I think. This article[^] explains them well. Java, Basic, who cares - it's...

How to print an a 4x4 array in clockwise direction

31 Aug 2009 by Moreno Airoldi

Consider this as a rough idea:#include void PrintArrayClockwise(int *array, int rows, int columns){ int r = 0; int rh = rows / 2; int i; while (r

How to double click desktop icon programatically?

15 Aug 2009 by Stuart Dootson

birajendu wrote:I want to write some code which will double click a desktop shortcut. or the alternate way is how can i run a desktop shurtcut using Createprocess() api.If you know the path to the desktop shortcut, then you should be able to use...

How to cause a CPropertySheet to show a particular page .. [SOLVED]

16 Aug 2009 by David Crow

The SetActivePage() method looks promising. "Old age is like a bank account. You withdraw later in life what you have deposited along the way." - Unknown"Fireproof doesn't mean the fire will never come. It means when the fire comes that you...

Two basic questions about generated assembly

15 Jul 2008 by CPallini

1.From the same article, below your quoted sentence.The LEA instruction uses hardwired address generation tables that makes multiplying by a select set of numbers very fast (for example, multiplying by 3, 5, and 9). Twisted, but true.That means...

string concatenation

13 Mar 2009 by Cedric Moonen

Which kind of string ? C style strings ? Then use strcat. std::string ? Then use the + operator. Cédric MoonenSoftware developerCharting control [v1.5]OpenGL game tutorial in C++

Get the keys present in the section of an ini file...

10 Mar 2009 by Iain Clarke, Warrior Programmer

I've just noticed you posted the same question four hours before. You really should have more patience! People volunteer to answer these questions. Asking the same one again in a short time is not helpful to you...Iain. Codeproject MVP for C++, I...

size_t

10 Oct 2008 by Maximilien

George_George wrote:I am developing for both x86 and x64. I stop mouse on size_t in the code, and "typedef unsigned int size_t" is always displayed. I think it is not correct for x64. Since x64 size_t is 64-bit and unsigned int on x64 is 32-bit....

size_t

10 Oct 2008 by C^hris L^osinger

from io.h (and crtdefs.h)#ifndef _SIZE_T_DEFINED#ifdef _WIN64typedef unsigned __int64 size_t;#elsetypedef _W64 unsigned int size_t;#endif#define _SIZE_T_DEFINED#endif image processing toolkits | batch image processing

can ATL dll take a class object as parameter?

23 Feb 2010 by Eugen Podsypalnikov

Why should it be impossible ? :)class B;class A{...public: A(B* pB);...--When you will have to transport class instances by an interface -you could define a function like TakeData(IStream* pStream) :) The caller could create an IStream associated with...

C++

ATL

DLL

About Wmp(Windows Media Play) Plug-in

3 Apr 2010 by Rod Kemp

To learn how to create plug-ins for Windows Media Player, see the Windows Media Player SDK[^].This should outline what you can and can't do with a plug-in in WMP.

Copy the string from const char* To char[500];

27 May 2010 by Aescleal

If you're programming in C, then:strncpy( q, p, 499 );q[499] = '\0';will do the trick and work however long the string is. If you'd like to obfuscate things a bit more then you can combine the two lines into one by exploiting the return value of strncpy:strncpy( q, p, 499 )[ 499 ]...

How to show '&' character not underline

31 May 2010 by Anu Koshy

if it is a text control, set "No Prefix" as True.That should solve the problem. :)

RAPI2 - Part II: Loving the Stream

14 Jun 2010 by Paul Heil

Using the RAPI2 interface safely and effectively.

Calling a COM interface from a worker thread

3 Aug 2010 by Jörgen Sigvardsson

You need to marshal calls across threads/apartments. See this[^] article for different ways to perform cross thread marshalling. CoMarshalInterThreadInterfaceInStream() would probably be the easiest approach. Look it up in the MSDN documentation. It's quite easy to use.

How to Use Update Cursors in SQL Server

28 Jul 2011 by Manjuke Fernando