class module

hi ,

could you please tell me something about class module.

i know nothing about it,

what good dose a class module do to us .

thanks

cheers

 

That's a huge topic. You may want to visit a beginner's programming site for
detaile tutorial on the subject. Use Google to search for VB and VBA sites.

 

Frank's right that there is a lot to learn, but you could probably state the main purpose of a class faily simply. It allows you to create your own object with its unique properies and methods. For example, I have a set of text utilities where I've created my own text object. I have added to the properties of a standard text object and given it new functions to fit my needs.

--
----
Ed
----

That's a huge topic. You may want to visit a beginner's programming site for
detaile tutorial on the subject. Use Google to search for VB and VBA sites.

 

thank you.

what you told me is just what i want to know.

thanks

Frank's right that there is a lot to learn, but you could probably state
the main purpose of a class faily simply. It allows you to create your own
object with its unique properies and methods. For example, I have a set of
text utilities where I've created my own text object. I have added to the
properties of a standard text object and given it new functions to fit my
needs.

--
----
Ed
----

That's a huge topic. You may want to visit a beginner's programming site
for
detaile tutorial on the subject. Use Google to search for VB and VBA
sites.

 

We use class modules in a few ways.

One way is that we create a macro dvb file. In it we add a module such as:

Public Sub show_settings()
Dim xSmartFull As New cSmartFull
xSmartFull.ShowSettings
Set xSmartFull = Nothing
End Sub

We ake a lisp file to define that command:

;smd
(defun c:sset() (command "-vbarun" "C:/Program
Files/SmartLister/Support/SmartListerMenu.dvb!mStart.show_settings"))
(princ)
;/smd

Now we can type sset and this macro is called.

We have a vb dll that has a class module in it called cSmartFull

The class module is referenced in the dvb module, if you read it above,
along with the specific function.

They are:
cSmartFull <---the class module im the vb dll
and
xSmartFull.ShowSettings <---the function to call within it

In the actual class module we have this code:

Public Sub ShowSettings()
BeginSmartSettings
End Sub


BeginSmartSettings is the call to a regular module in the our mMain code.

Public Sub BeginSmartSettings()
frmSettings.Show vbModal
End Sub


This launches the the frmSettings for the user to see.
------------------------------------------------------

We also have one where it monitors the command line for certain commands. If
they are executed it will then automatically fire a different piece of code
(module) that calls a class module in the dll then calls the code to be run.

I am not a programmer, so there are certainly different ways to use it that
I am unaware of. The basic understanding I have is that one of the practical
uses is so that you can build a vb dll to protect your code, also runs
faster, but you need a class module in it so that you have a way of
accessing it. We used an ACAD dvb file, but I would bet there are most
certainly other ways to call it. I would think it could be called directly
from lisp or c++ easily and probably any other programming language.

--
David Wishengrad
President & CTO
MillLister, Inc.
Software for BOM, measuring, stretching and controlling visibility of
multiple 3D solids.
Http://Construction3D.com

 

If it's not considered a trade secret, can you please explain how it "monitors the command line for certain commands"?

Thanks

Wayne Ivory
IT Analyst Programmer
Wespine Industries Pty Ltd