Solved

Using external DLL's

Posted on 1998-10-22
2
243 Views
Last Modified: 2013-11-20
I am quite new to MFC, i usually program in Visual Basic. In VB it is very easy to use external dll's, you just need the dll and you need to know which functions the dll implements. But how do you use external dll's in MFC, do you need the .h and the .lib file for the dll in order to use it in your program?? And does the dll have to be a MFC dll?? I've heard something about LoadLibrary, but wouldn't know exactly how to use it! I mean if you can do it in BV without .h and .lib files surely you can do it MFC without those files! btw, i am using VC++ 6.0!

Of course some sample code would be nice!
0
Comment
Question by:thomasschmidt
[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
2 Comments
 
LVL 12

Accepted Solution

by:
rwilson032697 earned 100 total points
ID: 1323738
In MFC you have to do it like this... (excuse me if the function var decl is a little rusty...)

HINSTANCE MyDLLHandle;
int (*)(int, int) MyFunc; // MyFunc is pointer to func returning int taking two int args

MyDLLHandle = LoadLibrary('MyDLL.DLL');
MyFunc = GetProcAddress(MyDLLHandle, 'MyFunc');

Cheers,

Raymond.

0
 

Author Comment

by:thomasschmidt
ID: 1323739
That has got to be the weirdest declaration i have ever seen ;-)! Is that the way it works in MFC??? It looks understandable now all i have to do is try it!

Thanks
0

Featured Post

Industry Leaders: We Want Your Opinion!

We value your feedback.

Take our survey and automatically be enter to win anyone of the following:
Yeti Cooler, Amazon eGift Card, and Movie eGift Card!

Question has a verified solution.

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

Suggested Solutions

Title # Comments Views Activity
Separate files macro - Errors on larger data set 18 76
Expand data scrubbing tool 13 36
deburging in oracle form 12 119
modThree challenge 4 154
Exception Handling is in the core of any application that is able to dignify its name. In this article, I'll guide you through the process of writing a DRY (Don't Repeat Yourself) Exception Handling mechanism, using Aspect Oriented Programming.
Have you tried to learn about Unicode, UTF-8, and multibyte text encoding and all the articles are just too "academic" or too technical? This article aims to make the whole topic easy for just about anyone to understand.
This video will show you how to get GIT to work in Eclipse.   It will walk you through how to install the EGit plugin in eclipse and how to checkout an existing repository.
Finds all prime numbers in a range requested and places them in a public primes() array. I've demostrated a template size of 30 (2 * 3 * 5) but larger templates can be built such 210  (2 * 3 * 5 * 7) or 2310  (2 * 3 * 5 * 7 * 11). The larger templa‚Ķ

734 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