You checks would then be against the enum types defined:

Public Function CalculateValue(argItem1, argItem2, argType As MyType) As
Long
Dim sMsg As String
If argType = Modified Then
sMsg = "Modified"
ElseIf argType = Normal Then
sMsg = "Normal"
ElseIf argType = None Then
sMsg = "None"
Else
sMsg = "Not Valid"
End If

End Function

Without quotes.

--
Regards,
Tom Ogilvy

"quartz" wrote in message
...
Thanks Chip and Tom.
Sorry, I should have made it clearer Tom, I was looking for the VBE
method.

Thanks for your reply.

"Tom Ogilvy" wrote:

My comments are related to using a custom function in a worksheet.

I believe Chip's relate to using it in the VBE. But, he may know
something
I don't.

--
Regards,
Tom Ogilvy

"Tom Ogilvy" wrote in message
...
Only if you use the function wizard to insert the function and supply
help
for the arguments of a function. This can't be done with VBA alone.
You
can use Larent Longre's addin free addin to assist.

http://xcell05.free.fr/

There is no option for it to work like autosense, however.

--
Regards,
Tom Ogilvy

"quartz" wrote in message
...
I am using Office 2003 on Windows XP.

Suppose you have a custom public function which requires certain
arguments.
Suppose further that one of those arguments could be one of three
choices.

When you call the function and open the parentheses you see the
listed
arguments. Is it also possible to show the three possible choices
for
the
one
argument?

Is so, could someone please illustrate how to do this? See example
function
below:

Public Function CalculateValue(argItem1, argItem2, argType) as Long
If argType = "Normal" then ...
If argType = "Modified" then ...
If argType = "None" then ...
End Function

When I'm entering a call to the function as in: Call
CalculateValue(lngValue1, lngValue2, ...), when I get to the point
where
I
need to enter the "argType" I want to see what my options are (i.e.
Normal,
Modified, or None). Kind of like auto-sensing.

Can this be done? If so, how? Thanks much in advance.