Improve company productivity with a Business Account.Sign Up

x
?
Solved

ActiveX DLL Help required

Posted on 2006-10-24
1
Medium Priority
?
184 Views
Last Modified: 2011-10-03
HI

I am a beginner to ActiveX DLL development.  I want to create an Active DLL in VB, with various functions that I can call from within my VB EXE application.  Does anyone know of any good online examples that I can use to learn how to achieve this, or could someone post some examples of:

a) A simple DLL with 2 functions that can be called
b) Sample code of how to reference my ActiveX DLL from within my VB application, and how to make these calls, including passing values to it.

I know if I had a good example I could work out the rest of it myself.
Many Thanks
0
Comment
Question by:icontroldev
1 Comment
 
LVL 13

Accepted Solution

by:
jmundsack earned 150 total points
ID: 17794961
1. Create a new ActiveX DLL project (this auto-creates Class1)
2. Add the following code to Class1

Option Explicit

Private mMyProperty As String

' example of property get/let
Public Property Get MyProperty() As String
    MyProperty = mMyProperty
End Property
Public Property Let MyProperty(ByVal NewValue As String)
    mMyProperty = NewValue
End Property

' example of public procedure
Public Sub DoSomething()
    ' code to do something
End Sub

' example of public function
Public Function GetSomething() As String
    'GetSomething = <something to get>
End Function

3. Give your Class and Project some names (e.g., SomeProject, SomeClass)
4. Compile the DLL (see also * below)
5. Open another VB project
6. Go to Project > References
7. Find SomeProject in the list and check the box
8. Add the following code to this project:

    Dim objSomeClass As SomeClass
    Set objSomeClass = New SomeClass
    objSomeClass.MyProperty = "Hello, World!"
    MsgBox objSomeClass.MyProperty

This should get you started....

* Before you get too deep in ActiveX, read up on the topic of "binary compatibility".  Here is an excellent article on the topic:   http://users.skynet.be/wvdd2/Compiling/compiling.html

HTH-Jon
0

Featured Post

Free Tool: Port Scanner

Check which ports are open to the outside world. Helps make sure that your firewall rules are working as intended.

One of a set of tools we are providing to everyone as a way of saying thank you for being a part of the community.

Question has a verified solution.

Are you are experiencing a similar issue? Get a personalized answer when you ask a related question.

Have a better answer? Share it in a comment.

Join & Write a Comment

Background What I'm presenting in this article is the result of 2 conditions in my work area: We have a SQL Server production environment but no development or test environment; andWe have an MS Access front end using tables in SQL Server but we a…
This article describes how to use a set of graphical playing cards to create a Draw Poker game in Excel or VB6.
Get people started with the process of using Access VBA to control Outlook using automation, Microsoft Access can control other applications. An example is the ability to programmatically talk to Microsoft Outlook. Using automation, an Access applic…
Get people started with the process of using Access VBA to control Excel using automation, Microsoft Access can control other applications. An example is the ability to programmatically talk to Excel. Using automation, an Access application can laun…

608 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