"Compile Error: Expected: =" when trying to call a sub

I'm trying to call a sub with three parameters.

Code:

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CenterPrint(Titl, "Arial", 24)

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Private Sub CenterPrint(ByVal Text As String, Optional ByVal FName As String, Optional ByVal FSize As Integer)
  If FName Then Printer.Font.Name = FName
  If FSize Then Printer.Font.Size = FSize
  Printer.CurrentX = Printer.ScaleX / 2 - Printer.TextWidth(Text) / 2
  Printer.Print Text
End Sub

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Why does VB tell me "Compile Error: Expected: ="

Coz your not doing anything with the return value you need to remove the parenthasis from around the arguments...

CenterPrint Titl, "Arial", 24


or use

Call CenterPrint(Titl, "Arial", 24)

God bless you, young man.