C / C++ / MFC Discussion Boards

oshah9-Mar-06 23:18

9-Mar-06 23:18

The only way I'd expect this to work is if you disabled exceptions, disabled /GS support, used /NODEFAULTLIB, provided your own mainCRTStartup, and removed most use of the new CRTs.
But if you've done all of this, you may as well static link, to remove all dependence on any CRT DLLs.

Re: Linking C runtime

Monty²9-Mar-06 19:11

Monty²

9-Mar-06 19:11

Well install both VC6 and VS2005, Create the project in VC6 and then try opening in VS2005 should work.

C makes it easy to shoot yourself in the foot; C++ makes it harder, but when you do, it blows away your whole leg

Explorer Context Menu

Saurabh.Garg9-Mar-06 13:29

Saurabh.Garg

9-Mar-06 13:29

I have several programs installed in my machine which add themselves to explorer context menu. I was looking for a program that can re-organize them. for example if menus are in order

----
A
B
C
D
----

I want to change them to say
----
D
A
C
B
----

But I am not able to find such a program. So I was thinking of writing one myself. My question is - is it possible?. If yes then how? any pointers?

-Saurabh

Intellisense in my static lib is out of date

RFID Chris9-Mar-06 10:54

RFID Chris

9-Mar-06 10:54

I've got a quick question regarding the intellisense available from Visual Studio 2005 in my "native C++ static lib" project.

I've rearranged a lot of classes and yet the intellisense is way off. How to I force it to rebuild intellisense properly? The progress bar "updates" intellisense every so often but is now totally off.

Is there a file I can delete? Is there a menu item to mash?

Thanks!

-Chris

Re: Intellisense in my static lib is out of date

RFID Chris9-Mar-06 11:00

RFID Chris

9-Mar-06 11:00

Yikes!

It's the same old .ncb file that we were used to in Visual C++ 6. Sweet I just deleted it and *boom* it rebuilt properly.

Sorry for what was most likely a re-post (it's been a long day already) D'Oh! | :doh:

How to convert CString to char* in Visual C++ .NET 2005

yellowine9-Mar-06 9:54

yellowine

9-Mar-06 9:54

I am having trouble converting a CString variable to a char* variable below:

CString hello("CString");
char* hello1=new char[hello.GetLength()+1];
_tcscpy(hello1, hello);

Error 1 error C2664: 'wcscpy' : cannot convert parameter 1 from 'char *' to 'wchar_t *' d:\projects\c++.net\test3\test3

Why it is wrong?

Thanks in advance.

-- modified at 15:54 Thursday 9th March, 2006

Re: How to convert CString to char* in Visual C++ .NET 2005

David Crow9-Mar-06 10:06

David Crow

9-Mar-06 10:06

yellowine wrote:
char* hello1=new char[hello.GetLength()+1];

Change to wchar_t.

"Let us be thankful for the fools. But for them the rest of us could not succeed." - Mark Twain

"There is no death, only a change of worlds." - Native American Proverb

Re: How to convert CString to char* in Visual C++ .NET 2005

yellowine9-Mar-06 10:13

yellowine

9-Mar-06 10:13

I use the char* hello1 for an OpenGL function which take strictly a char* parameter. and s wchar_t variable will not work for the gl function.

Re: How to convert CString to char* in Visual C++ .NET 2005

David Crow9-Mar-06 10:21

David Crow

9-Mar-06 10:21

But does the use of wchar_t get rid of the C2664 error? There are ways to convert between Ansi and Unicode.

"Let us be thankful for the fools. But for them the rest of us could not succeed." - Mark Twain

"There is no death, only a change of worlds." - Native American Proverb

Re: How to convert CString to char* in Visual C++ .NET 2005

Jack Puppy9-Mar-06 11:34

Jack Puppy

9-Mar-06 11:34

Unicode is turned on by default in 2005, so CString is a Unicode string, and _tcscpy is the wide string copy.

1) Use CStringA instead of CString
2) Use strcpy instead of _tcscpy

CStringA hello("CString");
char* hello1=new char[hello.GetLength()+1];
strcpy(hello1, hello);

"My dog worries about the economy. Alpo is up to 99 cents a can. That's almost seven dollars in dog money" - Wacky humour found in a business magazine

Re: How to convert CString to char* in Visual C++ .NET 2005

Jijo.Raj9-Mar-06 15:04

Jijo.Raj

9-Mar-06 15:04

Dear yellowine,

If you need to convert a CString to ASCII in a unicode environment, there are several converting macros and functions available. Outof them, one of the easy to use is ATL conversion macro. Please see the code block below.

#include "ATLBASE.H"<br />
.<br />
.<br />
.<br />
<br />
CString csString( L"Hello" ); // The UNICODE string.<br />
USES_CONVERSION; // Initilizing the conversion macro.<br />
char* pszTemp = W2A( csString ); // Convert UNICODE to ASCII.<br />
<br />
// NOTE: The W2A allocates string in the stack. So if you need<br />
// ASCII string on heap, you should manually allocate the memory<br />
// and strcpy to it.

Regards,
Jijo.

________________________________

Yesterday is history,
Tomorrow is a mystery,
But today is a present.

Re: How to convert CString to char* in Visual C++ .NET 2005

J51219829-Mar-06 17:11

J5121982

9-Mar-06 17:11

Easy way to convert CString to char*

CString str="JAYARAJ";
char *ch= str.GetBuffer(str.GetLength());

JAYARAJ

Re: How to convert CString to char* in Visual C++ .NET 2005

Ryan Binns9-Mar-06 17:21

Ryan Binns

9-Mar-06 17:21

J5121982 wrote:
Easy way to convert CString to char*

Which won't work for the case in the question. You'll get the same error that yellowine did.

Ryan

"Punctuality is only a virtue for those who aren't smart enough to think of good excuses for being late" John Nichol "Point Of Impact"

Re: How to convert CString to char* in Visual C++ .NET 2005

Jijo.Raj9-Mar-06 17:25

Jijo.Raj

9-Mar-06 17:25

As per my understanding, the discuession topic is conversion of CString to char* in unicode envrionment( as UNICODE is default in Visual C++ .NET 2005 from previous posts). Whether this code block will work in a UNICODE defined project? i have tested the same in VS 6.0. But its showing compilation errors.

or is this work only with Visual C++ .NET 2005 ? please clarify. I have no experiance with Visual C++ .NET 2005.

Regards,
Jijo.

________________________________

Yesterday is history,
Tomorrow is a mystery,
But today is a present.

Re: How to convert CString to char* in Visual C++ .NET 2005

murali_utr9-Mar-06 19:48

murali_utr

9-Mar-06 19:48

try this,

CString hello("CString");

char* hello1=new char[hello.GetLength()+1];

hello1 = hello.GetBuffer(hello.GetLength());

Have A Nice Day!
Murali.M

VC++ output in Windows

APOTDAR9-Mar-06 9:10

APOTDAR

9-Mar-06 9:10

Hi,

I have a code in VC++ that takes user input values and gives the output. I need to copy all my user inputs and outputs after I execute the code. Dos based window is very small and shows only last part of the output. Is there any way in which I can get this output in a scrolling window background? I tried using quickwin version 1.0 but it only accepts user input and stops after all my inputs are over. It does not display any output at all.
Please help me out with this problem. Appreciate your time and efforts.

Thanks,

Ashu

Re: VC++ output in Windows

David Crow9-Mar-06 9:43

David Crow

9-Mar-06 9:43

APOTDAR wrote:
I have a code in VC++...

Is this a console application or a GUI application?

"Let us be thankful for the fools. But for them the rest of us could not succeed." - Mark Twain

"There is no death, only a change of worlds." - Native American Proverb

Re: VC++ output in Windows

APOTDAR9-Mar-06 9:59

APOTDAR

9-Mar-06 9:59

This is a console applicaiton.

Re: VC++ output in Windows

David Crow9-Mar-06 10:12

David Crow

9-Mar-06 10:12

As I've never tried it, this is just a guess. I don't think your application will be able to get information about the console window in which it is running. I think you'll need to create another console application that does nothing but call CreateProcess() and redirects the stdin/stdout handles of the child process. See here and here.

"Let us be thankful for the fools. But for them the rest of us could not succeed." - Mark Twain

"There is no death, only a change of worlds." - Native American Proverb

Re: VC++ output in Windows

Jijo.Raj9-Mar-06 15:38

Jijo.Raj

9-Mar-06 15:38

Dear Ashu,

Increasing the Console Screen buffer may solve your problem. please see the code block below. Please insert this code block at the starting of your program.

#include "Afx.h" // If its not an MFC application.<br />
<br />
// Get the output handle of Console.<br />
HANDLE hConsoleOutput = GetStdHandle( STD_OUTPUT_HANDLE );<br />
<br />
// The Console ScreenSize buffer.<br />
COORD stScreenBufferSize;<br />
stScreenBufferSize.X = 300; // The prefered width of console buffer.<br />
stScreenBufferSize.Y = 1000; // The prefered height of console buffer.<br />
<br />
// Changing the Console Screen Buffer Size.<br />
SetConsoleScreenBufferSize( hConsoleOutput,<br />
stScreenBufferSize );

At the end of the program, please add some getch() function which waits for user input and then, take the console window and copy your required data from there.

Regards,
Jijo.

________________________________

Yesterday is history,
Tomorrow is a mystery,
But today is a present.

-- modified at 21:38 Thursday 9th March, 2006

Search Silence in MP3 file

Senger9-Mar-06 8:54

Senger

9-Mar-06 8:54

Hi,

I trying to search a silence in MP3 File.
I don´t now how I can make that.
I using the Direct X and Visual C++.

Do you have any idea to help me??

Thks!!!!!

Re: Search Silence in MP3 file

Trollslayer9-Mar-06 10:50

Trollslayer

9-Mar-06 10:50

You would have to decode the MP3 and then look at the resulting waveform for peaks above a certain level.

The tigress is here Big Grin | :-D

hwndParent

viperlogic9-Mar-06 8:04

viperlogic

9-Mar-06 8:04

I am just checking out sample code on MSDN as see below, i have created a basic MFC app using the wizard and copying the code below into it and made a few changes for it to run.

http://msdn.microsoft.com/library/default.asp?url=/library/en-us/wmisdk/wmi/example__getting_wmi_data_from_the_local_computer.asp

in the code "CredUIPromptForCredentials" is called but a dialog doesnt pop up when run.

there is a line of code "cui.hwndParent = NULL;" should that not point to a parent window, how do i point it to a parent window, is it using HWND somehow?

thx

Re: hwndParent

super9-Mar-06 13:26

super

9-Mar-06 13:26

Can you give a specific of code form your project.
If you want to assign the parent window, please assign the handle of the main window. But I can be more helpful if you can give sepcific of your code

cheers,
Super
------------------------------------------
Too much of good is bad,mix some evil in it

EnumProcesses vs HKEY_PERFORMANCE_DATA

Blake Miller9-Mar-06 6:52

Blake Miller

9-Mar-06 6:52

We currently determine if a process is running on the local system by openeing the performance data and scanning the 'process' performance data, searching for the name of the EXE in the performance data. There is some overhead with the various registry-function calls, allocating memory, traversing memory, string compare, etc.

Otherwise, you can call EnumProcesses, which then involves OpenProcess and then GetModuleFileName and searhcing the string.

Has anyone else made such a conversion fromt he registry data to EnumProcesses and then regretted such a change because of performance loss, security issues, or otherwise?

People that start writing code immediately are programmers (or hackers), people that ask questions first are Software Engineers - Graham Shanks

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