How to access the value of control.colomn(x) after passing the control to a global function

[Karlos51]

Inexperienced user here.
I have multiple forms within my database in which I copy the value of one control to another, some of them are ComboBox controls for which I use the value from a particular column. Currently I use a separate button and VBA sub for each instance, which works fine.
I have been trying to simplify this with a single global function that I can call with a macro to accomplish this task, but I seem to be unable to access the control.Column(x) value when using this method.
My global function looks like this (I use a function as it seems I cannot call a sub from a macro):

Function copy_value(FromControl, ToControl As Control, Optional col As Long = 0)    
If col = 0 Then
        ToControl.Value = FromControl.Value
    Else
        ToControl.Value = FromControl.Column(col).Value
    End If
End Function

Works fine for controls without the Column property, but fails with error 424 otherwise.
Is there a way to make this work, or a better way to achieve this?

[June7]

Don't use Value property when pulling from Column.

Value is property of control, not Column.

Why use macros at all?

You have not declared data type for FromControl.

[Karlos51]

Don't use Value property when pulling from Column.

Value is property of control, not Column.

Why use macros at all?

You have not declared data type for FromControl.

OMG, it really was as simple as removing the .value. Thank you.
I was using a macro to try and simplify the codebase as the other people here are even less experienced than I.