convert vc++6 program to dll or ocx to use in .net(c#) - C / C++ / MFC Discussion Boards

Re: How to move done project to another computer?

Gofur Halmurat31-Oct-07 4:21

Gofur Halmurat

31-Oct-07 4:21

I used Visual c++ 6.0

Re: How to move done project to another computer?

Matthew Faithfull31-Oct-07 4:18

Matthew Faithfull

31-Oct-07 4:18

He'll need the MFC dlls plus any others that your program uses. There's a Visual Studio tool called 'depends.exe' which will tell you the Dlls that are loaded up automagically when the application starts (like msvcrt.dll for example) For any others you'll need to look for LoadLibrary calls in your code. Remember he'll already have most of those in your list as part of Windows so don't go overwriting vital items on his machine Big Grin | :-D

Nothing is exactly what it seems but everything with seems can be unpicked.

Re: How to move done project to another computer?

Paresh Chitte31-Oct-07 20:02

Paresh Chitte

31-Oct-07 20:02

Please refer here[^].

Regards,
Paresh.

Re: How to move done project to another computer?

Gofur Halmurat1-Nov-07 0:16

Gofur Halmurat

1-Nov-07 0:16

Hello,

I just made simple application using MFC database classes, so, then i have to move every MFC dll files, that is crazy, because my application is 500 kb, it will be 15 mb with MFC dlls, why every do i have to move the dlls?

what would u recommend me?

thanks

Re: How to move done project to another computer?

JudyL_MD1-Nov-07 2:59

JudyL_MD

1-Nov-07 2:59

Gofur Halmurat wrote:
why every do i have to move the dlls?

Because you're using code inside those DLLs by virtue of using an MFC database class. The code has to exist somewhere. By dynamically linking to MFC, the code is in the DLL which must be present on the executing machine. If you statically link, the code is pulled into your EXE and comes along for the ride when you move the executable to the executing machine.

Judy

Re: How to move done project to another computer?

Paresh Chitte1-Nov-07 18:36

Paresh Chitte

1-Nov-07 18:36

Please click here[^] for more information.

Regards,
Paresh.

Re: How to move done project to another computer?

JudyL_MD2-Nov-07 1:55

JudyL_MD

2-Nov-07 1:55

Wrong person - you need to reply to the original poster so that they get the notification email.

Judy

convert vc++6 program to dll or ocx to use in .net(c#)

small_programmer31-Oct-07 3:31

small_programmer

31-Oct-07 3:31

there is a wonderful artical about digit recognition at:
http://www.codeproject.com/library/NeuralNetRecognition.asp
in vc++6 language.
I want to use this wonderful program as a dll or ocx in c#.
can anyone help me?
has anyone done this work before?
and can anyone give me this dll or ocx?
(i'm not familiar with nor understand difficult vc++6 programs)
very thanks in advance.

Re: convert vc++6 program to dll or ocx to use in .net(c#)

Matthew Faithfull31-Oct-07 4:13

Matthew Faithfull

31-Oct-07 4:13

There are a number of steps I would recommend if you want what I think you want.

Use VC++ 2005 or 2008 to create a simple Dll project using the wizard. Play around with this and understand what it gives you and how to use that Dll from another project.

Take a class or module at a time from the article and add it into a copy of your Dll project. For each object create the necessary externally callable Dll interface or a COM based wrapper and test it.

You should end up with a Dll with all the functionality in it and accessible from outside.
Using this from C# either by use of PInvoke calls or COM interop is one for the C# guys on the C# forum, I've only done a very little COM interop which is great once it's working. Smile | :)

Nothing is exactly what it seems but everything with seems can be unpicked.

Re: convert vc++6 program to dll or ocx to use in .net(c#)

small_programmer2-Nov-07 23:20

small_programmer

2-Nov-07 23:20

thank you very much Mathew.
excuse me for my late in respond (i did not have an internet connection for 1 day).

the main problem is that I want do this quickly and exactly and in a few efforts.

i try to test your useful and helpful way to do that.

if you or any other have better way or more comments i will thank.

thank you again. Rose | [Rose]

Problem with combo Box-values get repeating

SnaKeBeD31-Oct-07 2:46

SnaKeBeD

31-Oct-07 2:46

hi friends,

Pgming Env. = VS 6.0
DataBase = MS Acess

My problem arised when i tried to fetch a coloumn in to combo box frm the acess, fetching is done fine. but when i click tw combo box next time all the values are getting repeated(adding up), how should i clear the old data or suggest me some ideas when playing around with combo box

thanks in advance.... Sniff | :^)

||SnAkeBed||

Re: Problem with combo Box-values get repeating

David Crow31-Oct-07 2:52

David Crow

31-Oct-07 2:52

SnaKeBeD wrote:
...how should i clear the old data...

Send it a CB_RESETCONTENT message.

"Normal is getting dressed in clothes that you buy for work and driving through traffic in a car that you are still paying for, in order to get to the job you need to pay for the clothes and the car and the house you leave vacant all day so you can afford to live in it." - Ellen Goodman

"To have a respect for ourselves guides our morals; to have deference for others governs our manners." - Laurence Sterne

Re: Problem with combo Box-values get repeating

SnaKeBeD31-Oct-07 3:28

SnaKeBeD

31-Oct-07 3:28

hi,
could u please tell me how do i send that message?

||SnAkeBed||

Re: Problem with combo Box-values get repeating

David Crow31-Oct-07 3:36

David Crow

31-Oct-07 3:36

SnaKeBeD wrote:
...how do i send that message?

The same way you would send the CB_ADDSTRING message, unless MFC is hiding all of these details from you.

Re: Problem with combo Box-values get repeating

SnaKeBeD31-Oct-07 3:48

SnaKeBeD

31-Oct-07 3:48

thanx

||SnAkeBed||

Trying to create a guid in C++ from my code

LCI31-Oct-07 2:22

LCI

31-Oct-07 2:22

I used a GUID to represent a portion of a unique file name do my file looked like: myfilename_GUID.txt

In C# i just do
String strRandomName = System.Guid.NewGuid().ToString();

However, what do i do in C++?

Re: Trying to create a guid in C++ from my code

David Crow31-Oct-07 2:26

David Crow

31-Oct-07 2:26

LCI wrote:
However, what do i do in C++?

What's the problem? You previously stated that, "I used a GUID to represent a portion of a unique file name...", so did that work?

Re: Trying to create a guid in C++ from my code

George L. Jackson31-Oct-07 2:41

George L. Jackson

31-Oct-07 2:41

He created the GUID in C# and he wants to know how to do the same thing in C++.

"We make a living by what we get, we make a life by what we give." --Winston Churchill

Re: Trying to create a guid in C++ from my code

jhwurmbach31-Oct-07 2:30

jhwurmbach

31-Oct-07 2:30

LCI wrote:
However, what do i do in C++?

They hid it in the documentation. Those Bastards!
The secret lies in searching the MSDN for "GUID" and "creating".
Poke tongue | ;-P

But maybe what you want is just ::tmpfile() or ::tempnam() from stdio.h?

Let's think the unthinkable, let's do the undoable, let's prepare to grapple with the ineffable itself, and see if we may not eff it after all.
Douglas Adams, "Dirk Gently's Holistic Detective Agency"

Re: Trying to create a guid in C++ from my code [modified]

KenThompson31-Oct-07 2:43

KenThompson

31-Oct-07 2:43

#if (defined(__unix__) || defined(unix)) && !defined(USG)
#include <sys/param.h>
#endif

#include <stdio.h>
#include <assert.h>
#if defined(_WIN32) || defined(__CYGWIN__)
#include <objbase.h>
#elif defined MACOSX
#include <string.h>
#include <uuid/uuid.h>
#elif defined __FreeBSD__
# if __FreeBSD_version >= 500000
# include <uuid.h>
# else
# error FreeBSD versions prior to 500000 does not support uuid(3)
# endif
#else
#include <uuid/uuid.h>
#endif

///Above are my includes, below is the calls abstracted

#if defined(_WIN32) || defined(__CYGWIN__)
GUID randomGuid;
// create random GUID
randomGuid = GUID_NULL;
::CoCreateGuid(&randomGuid);
if (randomGuid == GUID_NULL)
{
fprintf(stderr,"Couldn't create a random GUID\n");
return;
}
memcpy(m_bufuid, &randomGuid, 16);
#elif defined __FreeBSD__
uuid_t uid; // uuid_t is a struct
uuid_create(&uid, NULL);
memcpy(m_bufuid, &uid, 16);
#else
uuid_t uid; // uuid_t is defined as unsigned char[16]
uuid_generate(uid);
memcpy(m_bufuid, uid, 16);
#endif

std::string tmp;
char cuid[100]; // Uid::GetUid temporary

sprintf(cuid,"%02x%02x%02x%02x-%02x%02x-%02x%02x-%02x%02x-%02x%02x%02x%02x%02x%02x",
m_bufuid[0],m_bufuid[1],m_bufuid[2],m_bufuid[3],
m_bufuid[4],m_bufuid[5],m_bufuid[6],m_bufuid[7],
m_bufuid[8],m_bufuid[9],m_bufuid[10],m_bufuid[11],
m_bufuid[12],m_bufuid[13],m_bufuid[14],m_bufuid[15]);
tmp = cuid;

Done.

-- modified at 8:48 Wednesday 31st October, 2007

Re: Trying to create a guid in C++ from my code

jhwurmbach31-Oct-07 3:17

jhwurmbach

31-Oct-07 3:17

Hey! I did not ask!

Anyway, your code is missing the m_bufuid declaration.

Re: Trying to create a guid in C++ from my code

KenThompson1-Nov-07 2:47

KenThompson

1-Nov-07 2:47

I pressed reply! Sorry it got pasted under you! That buffer is simply a char[16] buffer.

Load AVI streams with MCIWnd.OpenInterface

sdancer7531-Oct-07 2:04

sdancer75

31-Oct-07 2:04

Hi,

How can i load & play an AviStream using the OpenInterface macro ? My code compiles just fine but it does not show anything.

void CWrapperDlg::OnPlayAVI()
{
// Create the window like you would any Windows control.
m_mciWnd.Create(WS_CHILD | WS_VISIBLE | MCIWNDF_NOPLAYBAR | MCIWNDF_NOERRORDLG | MCIWNDF_NOTIFYERROR, CRect(0, 0, 300,300), this, 1234);

// Open the AVI file.

HRESULT hr;
PAVISTREAM pstream;

AVIFileInit();
hr = AVIStreamOpenFromFile(&pstream, "test.avi", streamtypeVIDEO, 0, OF_READ, NULL);
if (FAILED(hr))
AfxMessageBox("error");

m_mciWnd.OpenInterface((PAVISTREAM) &pstream);

//m_mciWnd.Open(strAVIPath);

// Play the opened AVI file.
m_mciWnd.Play();

// To keep the demo simple - can't play the AVI file more than one time.
((CButton *)GetDlgItem(IDB_PLAY))->EnableWindow(FALSE);
}

Regards,

sdancer75

maximal number of dialogs

baerten31-Oct-07 1:56

baerten

31-Oct-07 1:56

Hi everybody,

does it exist a maximal number of dialog ressources into a MFC Project.
My dialogs are under form of CFormView, but still now i have already over 25 dialogs

Does the project become buggy if a certain number of dialog ressouces is reached?

Big thanks for answers Smile | :)

Re: maximal number of dialogs

Paresh Chitte31-Oct-07 2:08

Paresh Chitte

31-Oct-07 2:08

I don't think so. My project is having around 50 + dialogs.

Regards,
Paresh.

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