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'''Visual Objects''' is an [[Object-oriented programming|object-oriented]] [[computer]] [[programming language]] that is used to create [[computer program]]s that operate primarily under [[Microsoft Windows|Windows]]. Although it can be used as a general-purpose programming tool, it is almost exclusively used to create database programs.<br />
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The original Visual Objects project (code-named '''Aspen''') was started as part of [[Nantucket Corporation|Nantucket]]'s attempts to bring the [[Clipper (programming language)|Clipper]] language to Windows, and move from the [[Procedural programming|procedural]] to the [[Object-oriented programming|object-oriented]] style. It also converted Clipper from a [[p-code machine|p-code]] system to being a true native compiler and introduced more elements of the [[C (programming language)|C language]] (such as typed [[Variable (programming)|variables]]), while including Windows extensions (such as [[Component Object Model|COM]], [[ODBC]], and later [[ActiveX Data Objects|ADO]]). With its symbol datatype, it offers the ability to form name-based linkages, which may be used to connect [[Menu (computing)|menu]] events to [[Method (computer science)|object methods]] or form direct linkages between server columns and controls.<ref>{{Cite book |last=Straley |first=Stephen J. |title=Straley's guide to CA-Visual objects for Clipper and xBase programmers |date=1995 |publisher=Reading, Mass. : Addison-Wesley Pub. Co. |isbn=0-201-40943-7 |pages=ix pp |language=English}}</ref><br />
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The Windows version was finally brought to market by [[Computer Associates]]. Unfortunately it was released before it was market-ready and in almost head-to-head competition with the first release of the [[Borland Delphi]] product. The language is still in use however the last release by GrafX Software was in 2012 of version 2.8 sp4 (version number 2838). GrafX announced that after this no new versions would be released. The next incarnation of the Visual Objects language is [[Vulcan.NET programming language|Vulcan.NET]], written by GrafX from scratch to be both Visual Objects compatible and be a true CLS compliant .NET language, taking full advantage of the [[.NET Framework|.NET framework]].<br />
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==See also==<br />
* [[XBase]]<br />
* [[Clipper (programming language)]]<br />
* [[Harbour (software)]]<br />
* [[Visual FoxPro]]<br />
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==References==<br />
{{reflist}}<br />
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==External links==<br />
* {{cite web|url=https://groups.google.com/forum/#!forum/comp.lang.clipper.visual-objects|title=Google newsgroup 'comp.lang.clipper.visual-objects'|access-date=11 September 2019}}<br />
* {{cite web|url=http://www.ghservices.com/gregh/cavo/new25.htm|title=CA-Visual Objects 2.5 Released|date=29 June 1999|access-date=11 September 2019}}<br />
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{{xBase}}<br />
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[[Category:Fourth-generation programming languages]]<br />
[[Category:XBase programming language family]]<br />
[[Category:Table-oriented programming]]<br />
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