Opening a form when calling a dll.

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VB

DLL

Okay I am working on a project that is requiring us to submit dll's for calls.

Currently all the calls are made from the exe file that was written in VB6, yes we are upgrading. I have been playing around with creating dll's and actually have that part of it down just doing basic things for practice.

The realization is that the current program calls other forms to open for the different tasks. the different forms need to be called when that task is selected.

I have created a small program, it just does math functions. The main form lets you select what math function you want to perform. that calls another form that lets you enter the data. clicking on a a button calls the dll to perform the function. pretty simple.

What I would like to do is have the main form call the dll which will open the form for input and do the calculation. Which is on the idea of what we are going to have to do for the other program eventually.

The call from the Main form:

Private Sub btnAdd_click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnAdd.Click
        frmadd.ShowDialog() ' calls the add 
    End Sub

Inputting data form: Input 2 numbers button click adds(this is where the dll is called) them and a close button to close form.

Imports Multiply1
Public Class frmadd

Private Sub frmadd_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load

End Sub

    Private Sub btnAdd_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnAdd.Click

        Dim Adding As New Multiply1.MyAdd

        txtAddAns.Text = Adding.AddMyValues(CDbl(txtbox1.Text), CDbl(txtbox2.Text)).ToString
    End Sub

    Private Sub btndone_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btndone.Click
        Me.Close()

    End Sub
End Class

This the code for dll

Public Class MyAdd

    Public Function AddMyValues(ByVal Value1 As Double, ByVal Value2 As Double)

        Dim Result As Double

        Result = Value1 + Value2

        Return Result

    End Function

End Class

I have read several different articles but the one thing they don't do is show how to create the form then have have the dll call it. Maybe I am missing something easy but I just can't see it.

Scott