Solved

Using external DLL's

Posted on 1998-10-22
2
179 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!
0
Comment
Question by:thomasschmidt
2 Comments
 
LVL 1

Accepted Solution

by:
Bridge earned 100 total points
ID: 1323736
HINSTANCE hDLL;               // Handle to DLL
LPFNDLLFUNC1 lpfnDllFunc1;    // Function pointer
DWORD dwParam1;
UINT  uParam2, uReturnVal;

hDLL = LoadLibrary("MyDLL");

if( hDLL != NULL )
{
   lpfnDllFunc1 = (LPFNDLLFUNC1)GetProcAddress(hDLL, "DLLFunc1" );

if( lpfnDllFunc1 )
   uReturnVal = lpfnDllFunc1(dwParam1, uParam2);

FreeLibrary(hDLL);

0
 

Author Comment

by:thomasschmidt
ID: 1323737
somehow this question got posted twice, but i'll give you the points anyway(even though there are errors in the code)!
0

Featured Post

Announcing the Most Valuable Experts of 2016

MVEs are more concerned with the satisfaction of those they help than with the considerable points they can earn. They are the types of people you feel privileged to call colleagues. Join us in honoring this amazing group of Experts.

Question has a verified solution.

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

Suggested Solutions

Introduction: Ownerdraw of the grid button.  A singleton class implentation and usage. Continuing from the fifth article about sudoku.   Open the project in visual studio. Go to the class view – CGridButton should be visible as a class.  R…
Introduction: Dialogs (1) modal - maintaining the database. Continuing from the ninth article about sudoku.   You might have heard of modal and modeless dialogs.  Here with this Sudoku application will we use one of each type: a modal dialog …
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.
In a recent question (https://www.experts-exchange.com/questions/29004105/Run-AutoHotkey-script-directly-from-Notepad.html) here at Experts Exchange, a member asked how to run an AutoHotkey script (.AHK) directly from Notepad++ (aka NPP). This video…

820 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