?
Solved

mfc dll doesn't register (I'm new at this)

Posted on 1998-07-23
7
Medium Priority
?
247 Views
Last Modified: 2013-12-04
Hi there I'm writing an mfc dll but can't get it to self register:

I -did- make a call to  AFX_MANAGE_STATE(AfxGetStaticModuleState()) at the
top of DllRegisterServer, but heck if I know what's going on.  By the way,
can anybody suggest a good book to get me jumpstarted?


Here's regsvr32's output:

blahblah.dll was loaded, but the DllRegisterServer entry point was not
found.

DllRegisterServer may not be exported, or a corrupt version of blahblah.dll
may be in memory.  ......


Thanks!

Ron
0
Comment
Question by:ronaldyang
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 3
  • 3
7 Comments
 
LVL 15

Expert Comment

by:Tommy Hui
ID: 1410873
The short answer is that your DLL does not have the function DLLRegisterServer function.

Note that this function is available only for DLLs whose purpose is to be an OLE server. If your DLL isn't an OLE server, then this isn't needed.

If you do indeed have this function, make sure the function is defined as

STDAPI DllRegisterServer(void)
{
}

You also need to have in the EXPORTS section of the .def file

EXPORTS
  DllRegisterServer


0
 

Author Comment

by:ronaldyang
ID: 1410874
Although I didn't bother with a .def file, I did include this in my class definition:

class AFX_EXT_CLASS mything : blahblah

Shouldn't that work?


0
 
LVL 15

Expert Comment

by:Tommy Hui
ID: 1410875
No, that does not work for your DLLRegisterServer function. You need to have it in the .DEF file or provide __declspec(dllexport) in the definition of the DLLRegisterServer function.
0
Free Backup Tool for VMware and Hyper-V

Restore full virtual machine or individual guest files from 19 common file systems directly from the backup file. Schedule VM backups with PowerShell scripts. Set desired time, lean back and let the script to notify you via email upon completion.  

 

Author Comment

by:ronaldyang
ID: 1410876
> __declspec(dllexport) in the definition of the DLLRegisterServer function.

That caused a compiler warning.

STDAPI __declspec(dllexport) DllRegisterServer(void) results in a compiler warning.

0
 
LVL 15

Accepted Solution

by:
Tommy Hui earned 800 total points
ID: 1410877
If you're using STDAPI, do NOT use __declspec(dllexport), but you will need to use a .DEF file.
0
 

Author Comment

by:ronaldyang
ID: 1410878
Thank you!  Great point.

What books do you think could help me learn more?

thanks again,
Ron
0
 
LVL 3

Expert Comment

by:Ronald Buster
ID: 1410879
I have the same problem, with a dll developed in delphi. However I don't use ole automation etc. I only use some variance calc's in the dll.

who can help me out on this one.

regards,

Cono
0

Featured Post

What is SQL Server and how does it work?

The purpose of this paper is to provide you background on SQL Server. It’s your self-study guide for learning fundamentals. It includes both the history of SQL and its technical basics. Concepts and definitions will form the solid foundation of your future DBA expertise.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

This article surveys and compares options for encoding and decoding base64 data.  It includes source code in C++ as well as examples of how to use standard Windows API functions for these tasks. We'll look at the algorithms — how encoding and decodi…
With most software applications trying to cater to multiple user needs nowadays, the focus is to make them as configurable as possible. For e.g., when creating Silverlight applications which will connect to WCF services, the service end point usuall…
This is Part 3 in a 3-part series on Experts Exchange to discuss error handling in VBA code written for Excel. Part 1 of this series discussed basic error handling code using VBA. http://www.experts-exchange.com/videos/1478/Excel-Error-Handlin…
In this video we outline the Physical Segments view of NetCrunch network monitor. By following this brief how-to video, you will be able to learn how NetCrunch visualizes your network, how granular is the information collected, as well as where to f…

764 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question