Disable subform using a module

[gg80]

I am trying to do unclutter by using modules more than I have in the past. I am trying to do something that I thought was simple. I would like to set a subform enable property to false. If I do it in vba in the parent with:
Me.F_Main_adderDB_SUB.Enabled = False
It works fine

If I try to use a module, I put
Call TEST1("F_Main_adderDB_SUB") in the main form.

In the module, I put
Screen.ActiveForm.SFN.Enabled = False and get an error message.
What am I missing? Googled, but found all help was for part I already can do. Any help much appreciated.

[ItsMe]

You will have to pass the name of the Main Form and subform control to your function. Might as well not have a custom user defined function for this since you have access to the Me shortcut from the main form's module.

[Missinglinq]

Custom Functions have their place, for groups of actions that are needed in various places within your code, but what would be the point in replacing one line of code, to do a task, with one line of code to call a function to execute one line of code?

Linq ;0)>

[gg80]

There is a lot more code in the module involving these same forms. I just showed the one item for clarity What is the format for doing this (subform enable=false) with a module?. Is there some book or site that discusses the differences we run into when coding with a module?

I am attaching this same message to the other reply as I assume this goes only to the responder.

[gg80]

In case someone is looking for an answer, I experimented and found this works

Public Sub En(SFN)
Screen.ActiveForm.Form(SFN).Enabled = True 'Forgot need "Form".
End Sub