Question

How to import an ActiveX DLL's functions into c++ w/o a header file?

Asked by: softeng

I'm trying to port an ActiveX dll we have over to NPAPI for use in firefox, opera, safari, etc...  So I need to import my ActiveX dll's functions into the other c++ file.  How do I import the functions over if I don't have a header file for said dll.

I do have a list of all the functions I'd be calling and the parameters (on the ones that need them) .  My attempts at this have proved futile.

Thanks for the help. If you need any more information I can give it.

HINSTANCE npAXDLL;               // Handle to DLL
  LPFNDLLFUNC1 Card;          // Function pointer
  UINT  uReturnVal;
 
 
	npAXDLL = NULL;
	npAXDLL = LoadLibrary(L"AXDLL.dll");
 
    if (npAXDLL != NULL)
    {
       Card = (LPFNDLLFUNC1)GetProcAddress(npAXDLL, "Card");
       if (!Card)
       {
          // handle the error
          FreeLibrary(npAXDLL);
       }
       else
       {
          // call the function
          uReturnVal = Card();
       }
    }

                                  
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Asked On
2009-10-15 at 08:55:19ID24815308
Tags

ActiveX

,

DLL

,

COM

,

C++

,

MFC

Topics

ActiveX

,

Microsoft Visual C++

,

Windows MFC Programming

Participating Experts
2
Points
500
Comments
3

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Answers

 

by: DanRollinsPosted on 2009-10-15 at 17:00:22ID: 25585978

In Visual Studio, use the class wizard's Add > Class... "MFC Class Form ActiveX Control."

The classwizard will build a "wrapper" that will provide access to all of the ActiveX's exposed functions.

 

by: wieser-software-ltdPosted on 2009-10-15 at 23:05:35ID: 25587307

or you can use the #import directive to generate a header file.

 

by: softengPosted on 2009-10-19 at 10:56:16ID: 25607410

Dan your comment somewhat worked but the rest has been figured out thanks!

20120131-EE-VQP-002

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