C / C++ / MFC

Re: how do i export multiple functions in dll

9-Oct-04 6:47

It is very simple. Just create a regular dll and export as much as functions that you want:

#define DLLEXPORT __declspec(dllexport)

DLLEXPORT int func1()
{
    //....
    return 0;
}

DLLEXPORT void func2()
{
}

DLLEXPORT void func3()
{
}

A. Riazi

Abbas_Riazi9-Oct-04 6:51

return values from exported functions in dll

9-Oct-04 6:51

Also see these Articles:
- DLLs are simple - Part I[^]
- DLLs are simple - Part II[^]
- DLLs are simple - Part III[^]

A. Riazi

Lanre Ogunkola10-Oct-04 3:39

Lanre Ogunkola

10-Oct-04 3:39

Thanks a milll Riazi. But i am also having problems exporting strings from the dll. the only thing that seems to work is if i put the string value in a
messagebox

CString myString()
{
char exString[10] = "Hellodarling"
AfxMessageBox( exString )
return exString
}

this usually give an error of === bad dll call when i call it up in vb
while the message box will display the exstring... and if i change the definition of exstring to == CString exstring it also give an error...
what do think

larry_larry

Re: return values from exported functions in dll

Abbas_Riazi10-Oct-04 3:44

Re: return values from exported functions in dll- errors

10-Oct-04 3:44

Strings in VB are differ from VC. Use BSTR instead of CString.

A. Riazi

Lanre Ogunkola11-Oct-04 6:23

Lanre Ogunkola

11-Oct-04 6:23

BSTR sTittle()
{
CString s = _T("dllretval");
double d = atof (s);
return s;
}

error C2440: 'return' : cannot convert from 'class CString' to 'unsigned short *'
No user-defined-conversion operator available that can perform this conversion, or the operator cannot be called
Error executing cl.exe.

BSTR sTittle()
{
BSTR s = "dllretval";
return s;
}

error C2440: 'initializing' : cannot convert from 'char [9]' to 'unsigned short *'
Types pointed to are unrelated; conversion requires reinterpret_cast, C-style cast or function-style cast
Error executing cl.exe.

larry_larry

Ethernet Commands

harios9-Oct-04 4:46

harios

9-Oct-04 4:46

I was wondering if anybody could tell me where to find a ports list for controling the ethernet card. That or some code showing how to change the cards mac address? The ports would be better.

in ports in meen asm ports

out F8,ax

4r3 j00 L33+

Abbas_Riazi9-Oct-04 7:08

9-Oct-04 7:08

I think you can't change the MAC address of a card. The MAC placed on the card by it's manufacturer.

A. Riazi

FASTian10-Oct-04 5:15

FASTian

10-Oct-04 5:15

sure you can change the mac address....search for it on the web and you'll find applications like SMac which you can use to change the mac address for your ethernet card.

Abbas_Riazi10-Oct-04 5:19

10-Oct-04 5:19

If I changed the MAC address of my network card to one that exist in a LAN, what happened? Also, is it possible to change MAC address of DVB cards?

A. Riazi

Henry miller11-Oct-04 3:33

Henry miller

11-Oct-04 3:33

If you change your Mac Address to something that exists, bad things can happen. Exactly what depends on many things. If you never transmit, and you have a switched network nothing will happen. If you have hubs, then you will see all traffic for the other machine as if it went to yours. (better to tell the card to listen for everything if you want to do this though)

If you transmit you mess up the network, and the sys admin will be down your throat. Don't do it.

Nearly all[1] cards support changing the Mac Address from software. DecNet requires this ability. Everyone is afraid that the last person on earth who runs DecNet will buy their card and it won't work. Besides, because everything ethernet has always supported changing the Mac Address, it is easier to leave that in each upgrade than to take it out.

I don't know what a DVB card is, so I can't speak for that particular case.

[1]It is probably safe to just say all. I know of no exceptions and find them unlikely.

Abbas_Riazi11-Oct-04 7:41

11-Oct-04 7:41

Thanks for your comment. Very useful. DVB is a card for receiving data from satellite. Sending data done via a regular modem but receiving data done by DVB. DVB has a MAC address, if received data contains this MAC, then capture this data and deliver it to Windows.

Best regards,
A. Riazi

MAPI help

_kane_9-Oct-04 4:30

_kane_

9-Oct-04 4:30

hi !

I am a newbie with MAPI.I figured out how to use MAPI to read/send/delete maessages etc. Can anybody tell me how to strip a message of its attatchments ?
Also can anyone tell me how to find the path to the storage (.pst ) file of the currently logged in profile ( logged in thru MapiLogonEx( ) ).

Thanks in advance.

Best Regards,

_KANE_

"Some guys hack just to get themselves a girlfriend.What a pathetic reason huh ?"

Re: MAPI help

Ravi Bhavnani9-Oct-04 6:53

Ravi Bhavnani

9-Oct-04 6:53

Would any of the articles in this[^] section help?

/ravi

My new year's resolution: 2048 x 1536
Home | Articles | Freeware | Music
ravib@ravib.com

Re: MAPI help

_kane_9-Oct-04 7:07

_kane_

9-Oct-04 7:07

well i already had a look at those, there;s one that lets you find the path to the .pst file but i cannot find the code for stripping the attatchments..

-kane

"Some guys hack just to get themselves a girlfriend.What a pathetic reason huh ?"

2 diologs

Larsson9-Oct-04 2:48

9-Oct-04 2:48

Hello,
I need to bring up 2 dialog windows and I need to work with then. How can I bring up 2 dialog windows and use them at the same time?.

When I do it now I can olny use the last dialog I show.
I work with MFC. Please help me.

Ravi Bhavnani9-Oct-04 6:59

Ravi Bhavnani

9-Oct-04 6:59

You'll need to create a couple of modeless[^] dialogs.

/ravi

My new year's resolution: 2048 x 1536
Home | Articles | Freeware | Music
ravib@ravib.com

Abbas_Riazi9-Oct-04 7:04

9-Oct-04 7:04

Just create dialogs as modeless dialogs not modal. Here is an example:

CMyDlg1 dlg1;
dlg1.Create(...);

CMyDlg2 dlg2;
dlg2.Create(...);

A. Riazi

Larsson10-Oct-04 3:17

10-Oct-04 3:17

Create?
What should I type in the Create?

dlg1.Create(???);

Abbas_Riazi10-Oct-04 3:35

10-Oct-04 3:35

dlg1.Create(ID_OF_YOUR_DIALOG);

A. Riazi

Larsson10-Oct-04 3:39

10-Oct-04 3:39

Yes but the dialog will not show it self.
If I try ShowWindow(SW_SHOW); I still not see it,
And if I try dlg1.DoModle(); its the same.

So how can I bring up the dialog window and see it.

Abbas_Riazi10-Oct-04 3:53

10-Oct-04 3:53

Define dlg1 and dlg2 as member variables of your main class.

A. Riazi

Larsson10-Oct-04 6:57

10-Oct-04 6:57

I Have done that byt how can I show the dialog?,
Well I can use DoModal if I do that I get;
you cant use that with a modless dialog so how can I show the dialog?. If I use ShowWindow(SW_SHOW) nothing happends so I need to show the window but how do I do that?

Abbas_Riazi10-Oct-04 10:14

10-Oct-04 10:14

The Create() member function must show you dialog window, if you didn't see anything, you did something wrong.

A. Riazi

Larsson10-Oct-04 20:58