Access Cookbook, 2nd Edition [Electronic resources] نسخه متنی

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Access Cookbook, 2nd Edition [Electronic resources] - نسخه متنی

Ken Getz; Paul Litwin; Andy Baron

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Chapter 12. Automation


No Access application exists in
isolation. Because Windows is a multitasking operating system, you
will often want to be able to link Access with other Windows
applications. Windows provides two mechanisms for communicating
between applications: Object Linking and Embedding (OLE), which has
been renamed ActiveX, and Dynamic Data Exchange (DDE), an older
technology that is supported primarily for backward compatibility.
ActiveX is easy for users and application programmers to work with
and allows for the creation of custom controls. It also accommodates
Automation, making it possible for Access to control various
applications using VBA.

This chapter presents examples of using Automation with several
Microsoft Office products. You'll also find an
example of using DDE to perform a task with the Windows shell.
You'll learn to activate an embedded ActiveX object
(a sound file), and you'll learn how to control
Access itself via Automation. You'll see how to use
the statistical, analytical, and financial prowess of the Excel
function libraries directly from Access, as well as how to retrieve
Word Summary Info for any selected document. Then
you'll dig into Automation, creating a form that
allows you to alter properties of Microsoft Graph objects on the
form. Finally, you'll delve into PowerPoint, which
in previous incarnations didn't support Automation,
and you'll see an example of automating tasks in
Outlook. These examples will show how you can manipulate and create
objects in these applications directly from Access.


Almost all of the examples in this chapter ask you to set a reference
within VBA, using the Tools References menu item. Because
this book supports multiple versions of Office,
we've selected the Office 11 type libraries in each
example. You'll need to modify the instructions to
set a reference to the correct type library in each case, based on
the version of Office you have installed. Besides these version
numbering differences, all the examples should behave the same, no
matter which version of Office you're using.


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