C / C++ / MFC

8-May-06 1:22

Hi Every one,
I'm programming in VC++ and I created a dll(MFC dll) with VC++,in this dll I'd like to have a function that export to out,I can do it ,but when I declare DllRegisterServer function I can't export it.
My code is same as folowing code:
__declspec(dllexport) STDAPI DllRegisterServer(void);
how can I export DllRegisterServer or DllUnregisterServer function that implemented in a dll ?
Please help me.
Best Regards.
Orchid
Confused | :confused:

Cedric Moonen8-May-06 1:34

8-May-06 1:34

What are you trying to do exactly ? Why do you want to export this function ? I don't know exactly its prupose but isn't it related to COM (not sure at all) ?

Nibu babu thomas8-May-06 1:40

Nibu babu thomas

8-May-06 1:40

Cedric Moonen wrote:
isn't it related to COM

Yeah it is. It is used to unregister a COM component. Smile | :)

Nibu thomas
Software Developer

Faqs by Michael dunn

Orchid858-May-06 1:44

8-May-06 1:44

I'd like to create a cryptographic service provider ,for example in rsaenh.dll there are many functions and this dll can export DllUnregisterServer and DllregisterServer ,I need do same as rsaenh.dll but I can't export this function from my dll?I hope it was clearly.
If you have any idea please inform Confused | :confused:

me.
Best Regards.
Orchid

Cedric Moonen8-May-06 1:55

8-May-06 1:55

It is because these dll are COM components (I suppose). Why do you want to do the same ?You can simply have a dll and exports the functions you need, why do you want to register it as a COM component ?

Orchid858-May-06 2:10

8-May-06 2:10

I need provide a cryptographic service provider (CSP) and every CSP needs to have a dll ,I need create a dll same as rsaenh.dll but not exactly same of rsaenh.dll I should change a bit it and replace my dll with rsaenh.dll .
I don't understand "COM components" that you mentioned.If it isn't possible do that,how rsaenh.dll can do it,please explain me complete and step by step about "COM component" that you mentioned.
Best Regards.
Orchid

Cedric Moonen8-May-06 2:15

8-May-06 2:15

I think you first need to define more in details want you want to do (for yourself I mean). Simply saying that you want to do the same as '....' without understanding the concepts behind that will lead you to nowhere (for example here, you want to use some COM functionalities without knowing what a COM component is).
Can't you do that simply with a dll ? Why do you need to register it as a COM component (and tell me it's because rsarnh.dll does that also, I want a good reason why you want to do that).
Sorry, but if all you want to do is a kind of 'copying' an existing thing, I cannot help you (because you need first to understand the concepts before using that).

Orchid858-May-06 2:34

8-May-06 2:34

I 'm sorry ,I think I couldn't explain you my idea well,
In my project I need create a CSP for our goal ,for example I need change the digital signature in word and for this goal I should create a CSP and install it in windows.I need a CSP same as "Microsoft Strong Crypto Provider" that "Microsoft Strong Crypto Provider" uses rsaenh.dll ,I should have a dll same as rsaenh.dll that "Microsoft Strong Crypto Provider" used it, but my dll isn't exactly same as rsaenh.dll ,it have a bit differ of it. I tried to make a dll with VC++ same as rsaenh.dll because my dll should replace with rsaenh.dll and my dll should have all of functions that rsaenh.dll have used ,one of this function is DllregisterServer and DllUnregisterServer .but when I implement them and export them ,I saw my dll can export all of functions except DllUnregisterServer and DllregisterServer .
I hope I could explain my goal now.
Please help me.
Best Regards.
Orchid

Monty²8-May-06 2:04

Monty²

8-May-06 2:04

Open the dll using Depends.exe and see what functions are being exported, i suspect that c++ is decorating the name if that is the case declare the function as "C" (extern "C" void f(int); ).

Large cats have been scientifically proven to dream. Among the recurring themes are balls of yarn, mice, and half-blind overweight shackled oryx.

Orchid858-May-06 2:34

8-May-06 2:34

I open rsaenh.dll with "DLL Export Viewer" I think this is same as Depends.exe that you mentioned but I see the DllUnregisterServer and DllregisterServer functions are exported and my dll can export these functions ,I can't understand meaning the sentence that you mentioned:
"C++ is decorating the name if that is the case declare the function as "C" (extern "C" void f(int); ). "
Please explain it if it is possible for you.
Best Regards.
Orchid

Monty²8-May-06 2:59

Monty²

8-May-06 2:59

ok if the "Dll export viewer" says that they are exported what error msg does regsvr displays

Large cats have been scientifically proven to dream. Among the recurring themes are balls of yarn, mice, and half-blind overweight shackled oryx.

Orchid858-May-06 3:10

8-May-06 3:10

"DLL Export Viewer" says that they are exported in rsaenh.dll,but when I open my dll with "DLL Export Viewer" there aren't exported I mean my dll can't export DllUnregisterServer and DllregisterServer function.
(I'm so sorry in the last answer I wrote can but I'd like to say can't )
Best Regards.
Orchid

Design question

YaronNir8-May-06 1:20

8-May-06 1:20

Support i am creating my own class the inherites from CButton.

now all my application buttons i create in the resource editor and then implement members and using DoDataExchange....

i need all those button from the class type CMyButton to be in a certain font.

but the problem is the OnCreate is never called, because the LoadTemplate is being used since it is in the dialog resources...

so the question is on which function override should i place the font changing?

thanks

Yaron

Interface basics click here :
http://www.codeproject.com/com/COMBasics.asp

don't forget to vote Smile | :)

Nibu babu thomas8-May-06 1:38

Nibu babu thomas

8-May-06 1:38

YaronNir wrote:
so the question is on which function override should i place the font changing?

I have a small idea...But someone can sure suggest a better one...

Override WindowProc.

Now create a function called Init();

LRESULT CMyBtn::WindowProc(UINT uMessage, WPARAM wParam, LPARAM lParam)
{
   static BOOL blFlag = TRUE;
   if(blFlag == TRUE)
   {
      Init();//write the font code here...
      blFlag = FALSE;
   }
   return CButton::WindowProc(uMessage,  wParam, lParam);
}

Nibu thomas
Software Developer

Faqs by Michael dunn

YaronNir8-May-06 1:41

8-May-06 1:41

this sure can work, but it is too complex, i don't want to implement WindowProc....

thanks anyway

any other suggestions?

Yaron

Interface basics click here :
http://www.codeproject.com/com/COMBasics.asp

don't forget to vote Smile | :)

Cedric Moonen8-May-06 1:42

8-May-06 1:42

Is this article[^] helpfull ?

YaronNir8-May-06 1:44

8-May-06 1:44

So apparently i shoudl override OnDraw and use the font settings there?

thanks

Yaron

Interface basics click here :
http://www.codeproject.com/com/COMBasics.asp

don't forget to vote Smile | :)

Cedric Moonen8-May-06 1:49

8-May-06 1:49

I'm not sure but yes, I think it is one solution

Nishad S8-May-06 1:58

Nishad S

8-May-06 1:58

Did you try PreCreateWindow?

- NS -

YaronNir8-May-06 2:22

8-May-06 2:22

can't do that, because it is called before the window is being attached....
so basically no valid hWnd...

Yaron

Interface basics click here :
http://www.codeproject.com/com/COMBasics.asp

don't forget to vote Smile | :)

Nishad S8-May-06 22:03

Nishad S

8-May-06 22:03

Then what about PreSubclassWindow?

- NS -

YaronNir9-May-06 0:10

9-May-06 0:10

with that it worked fine for me Smile | :)

thanks

Yaron

Interface basics click here :
http://www.codeproject.com/com/COMBasics.asp

don't forget to vote Smile | :)