Question

I’m having a really hard time finding an answer for this, with such generic terminology, and it’s possible my question is still difficult to parse. I have some code with a variable representing the amount of free disk space remaining as a percentage. I want to call it into a function, where I use the reverse amount in a message to the user, i.e. the amount of used space. Can I do a little math in the function call?

Public Sub MyApp()
    Dim nFreeSpace As Integer
    nFreeSpace = GetFreeSpace
    DisplayUsedSpace 100 - nFreeSpace 'Is this valid?
End Sub
Private Function DisplayUsedSpace(ByVal nUsedSpace As Integer) As Boolean
    MsgBox("You have used " & nUsedSpace & "% of your disk drive space.")
End Function

Answer 1

Yes, that is valid. Although, I probably would write it as this

Call DisplayUsedSpace(100 - nFreeSpace)

But, your code would work fine too.