Microsoft Office Tutorials and References
In Depth Information
Appendix E. Programming Excelfrom Another Application
Appendix E. Programming Excelfrom Another
In this appendix, we will briefly describe how the Excel object model can be programmed from
within certain other applications, including Microsoft Access, Word, and PowerPoint.
Briefly put, a well-known technique that Microsoft refers to as Automation (formerly called OLE
Automation) allows one application to gain access to the objects of another. An application that
"exposes" its objects is called an Automation server . An application that can access the objects of
an Automation server is called an Automation controller or Automation client . Since Microsoft
Word, Access, Excel, and PowerPoint are Automation servers and Automation controllers, as a
VBA programmer, you can program any of these applications from within any other.
E.1 Setting a Reference to the Excel Object Model
The first step in communicating with the Excel object model is to set a reference to its object
library. Each of the client applications (Word, Access, Excel, and PowerPoint) has a References
menu item under the Tools menu. Selecting this item displays the References dialog box shown in
Figure E-1 . From here, we can select the object models that we want to access from within the
Automation controller.
Figure E-1. The References dialog box
E.2 Getting a Reference to the Excel Application Object
Once the proper references are set, we can declare an object variable of type Application:
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