Please tell me how to make DLLs?

[jian2587]

I want to create some new functions and put it in a DLL
then declare it and use it.
But How?
I tried this...Man I am stupid
(I open a new DLL project)
sub abc
msgbox "abc123"
end sub
'module
public declare function abc()

'After compile to DLL i use it like this
public declare sub abc lib "c:\abc.dll" ()

Private Sub Command1_click()
abc
end sub
But it keep on display an error
Could anyone tell me how to make a DLL?

[Chris]

Jian, As for Visual Basic, it only can produce 2 type of DLL. That call Active DLL(In process) and Avtive EXE (Out of Process).

Both must be include in the Project|References and can not declara as the normal Library Type DLL that compile from C/C++.

The following is the way to declare a Active DLL.
Sample

Option Explicit
Dim Obj As Class1

Private Sub Form_Load()
   'Create a new instance of the Object (DLL)
   Set Obj = New Class1
End Sub

Private Sub Form_Unload()
   'Destroy the Object (DLL)
   Set Obj = Nothing
End Sub

As from your sample, you no need to have a Basic Module file in you DLL project folder. "coz Basic Module normally juz use to declara the API function or some public variable.

'In your Class Module
Public Sub abc() 
   msgbox "abc123" 
End Sub

'In your Form
Option Explicit
Dim Obj As Class1

Private Sub Command1_Click()
   Set Obj = New Class1
   Obj.abc 
   Set Obj = Nothing
End sub

Well, hope this made sense to you.

[jian2587]

Thanks for your RE anyway.
But I really wanna know how to make a DLL to be invoked by other progs.