ByRef: The argument is passed by reference. ByRef is the default.
ByVal: The argument is passed by value. Its value can be modified by the called routine.
char: caráuter de declaración de la Triba.
typename: Primitive data type name. Library or module defined types can also be specified.
= expression: Specify a default value for the argument, matching its declared type. Optional is necessary for each argument specifying a default value.
ParamArray: Use ParamArray when the number of parameters is undetermined. A typical scenario is that of a Calc user-defined function. Using ParamArray should be limited to the last argument of a routine.
UsingParamArray or = expression require Option Compatible to be placed before the executable program code in a module.
When using Option VBASupport 1, Optional arguments with no default value (= expression) are initialized according to their data type, except if Variant.
Sub ExampleExit
Dim sReturn As String
Dim sListArray(10) As String
Dim siStep As Single
For siStep = 0 to 10 ' Rellenar matriz con datos de prueba
sListArray(siStep) = chr$(siStep + 65)
MsgBox sListArray(siStep)
Next siStep
sReturn = LinSearch(sListArray(), "B")
Print sReturn
End Sub
Function LinSearch( sList(), sItem As String ) As Integer
Dim iCount As Integer
' Linsearch busca un TextArray:sList() por una TextEntry:
' El valor devueltu ye l'índiz de la entrada o 0 (Null)
For iCount=1 To Ubound( sList() )
If sList( iCount ) = sItem Then
Exit For ' sItem atopáu
End If
Next iCount
If iCount = Ubound( sList() ) Then iCount = 0
LinSearch = iCount
End Function