I have written a DLL that performs some data analysis and return
results through function calls with an Excel formula.

I am having a problem however passing the user selected range to my DL
function.

My DLL is regestered with the OS (XP). The DLL functions show as use
defined formulas for use in cells. What I need is to have my DLL gai
the ability (using the Excel object I suppose) to know the cell/rang
that the user is selecting. My function performs some calculation
based on the number of rows and colums the user has selected.

I have created an Excel object and set the object as Application
Workbook and Worksheet,

*** but it appears this is a "new" object and not the Workbook that
am calling the DLL from ***

Any ideas on how I tell the DLL that my object is the Workbook that
am calling it from?

Any help is greatly appreciated.

Ric

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