Editing Object REXX (section)

=== Windows automation ===
The Windows extension includes the [[Windows Script Host]] (WSH) Scripting Engine that can be used to perform general automation tasks. It also includes [[Object Linking and Embedding]]/[[ActiveX]] (OLE) support allowing to interact with Windows programs via the <code>OLEObject</code>.<ref name=":5">{{Cite book |last1=Ashley |first1=W. David |url=https://sourceforge.net/projects/oorexx/files/oorexx-docs/5.0.0/winextensions.pdf |title=ooRexx Documentation 5.0.0 Windows Extensions Reference |last2=Flatscher |first2=Rony G. |last3=Hessling |first3=Mark |last4=McGuire |first4=Rick |last5=Peedin |first5=Lee |last6=Sims |first6=Oliver |last7=Sims |first7=Oliver |last8=Wolfers |first8=Jon |publisher=RexxLA |year=2022}}</ref> [[OLE Automation]] is an [[inter-process communication]] mechanism developed by [[Microsoft]] that is based on a subset of the [[Component Object Model]] (COM). This mechanism enables, among other things, the invocation of program functions, the querying and setting of attributes and the interception of component events. The ooRexx interpreter comes with examples that demonstrate OLE interaction with [[Microsoft Access|Access]], [[Microsoft Word|Word]], [[Microsoft Excel|Excel]], [[OpenOffice (Apache)|OpenOffice]]/[[LibreOffice]], [[Active Directory|ActiveDirectory]], [[Windows Management Instrumentation|WMI]] and other programs. Furthermore, a utility program for searching available OLE objects is included.<ref name=":9" /><syntaxhighlight lang="oorexx" style="background-color: #ffffff; !important" line="1">
exc = .OLEObject~new("Excel.Application")     /* create object for Excel */
exc~visible = .true                           /* make Excel visible      */
Worksheet = exc~Workbooks~Add~Worksheets[1]   /* add worksheet           */
Worksheet~cells(1,1)~Value = “First Cell”     /* insert string into cell */

</syntaxhighlight>In addition to OLE support, the Windows extension enables interaction with the Windows program manager, the [[Tracing (software)|system event log]], the [[Clipboard (computing)|clipboard]] and the [[Windows Registry|registry]] as well as to query, edit and interact with windows, menus or sub-menus.<ref name=":5" />