Visual FoxPro

From Seo Wiki - Search Engine Optimization and Programming Languages

Jump to: navigation, search
Microsoft Visual FoxPro
Typical VFP9 editing session
Original author(s) Microsoft Corporation
Stable release Visual FoxPro 9.0 Service Pack 2 (SP2) / October 11, 2007; 200420048 ago
Operating system Microsoft Windows
Platform x86 and greater
Available in IDE: English, German, Spanish
Runtime: Above, French, Chinese, Russian, Czech, Korean
Development status Maintenance mode
Type Database Programming language
License Microsoft EULA

Visual FoxPro is a data-centric object-oriented and procedural programming language produced by Microsoft. It is derived from FoxPro (originally known as FoxBASE) which was developed by Fox Software beginning in 1984. Fox Technologies merged with Microsoft in 1992, after which the software acquired further features and the prefix "Visual". The last version of FoxPro (2.6) worked under Mac OS, DOS, Windows, and Unix: Visual FoxPro 3.0, the first "Visual" version, dropped the platform support to only Mac and Windows, and later versions were Windows-only. The current version of Visual FoxPro is COM-based and Microsoft has stated that they do not intend to create a Microsoft .NET version.

FoxPro originated as a member of the class of languages commonly referred to as "xBase" languages, which have syntax based on the dBase programming language. Other members of the xBase language family include Clipper and Recital. (A history of the early years of xBase can be found in the dBase entry.)

Visual FoxPro, commonly abbreviated as VFP, is tightly integrated with its own relational database engine, which extends FoxPro's xBase capabilities to support SQL query and data manipulation. Unlike most database management systems, Visual FoxPro is a full-featured, dynamic programming language that does not require the use of an additional general-purpose programming environment. It can be used to write not just traditional "fat client" applications, but also middleware and web applications.


Recent history

In late 2002, it was demonstrated that Visual FoxPro can run on Linux under the Wine Windows compatibility suite. In 2003, this led to complaints by Microsoft: it was claimed that the deployment of runtime FoxPro code on non-Windows machines violates the End User License Agreement.[1]

In December 2005, VFP broke into the top 20 on Tiobe index[2] for the first time. In March 2007 it was at position 19, making it a "B" language, and as of December, 2008 it dropped into position 23.

In March 2007, Microsoft announced that there will be no VFP 10[3], thus making VFP9 (released to manufacturing on December 17, 2004) the last commercial VFP release from Microsoft. The support of Version 9 is ongoing with service packs that were released December 8, 2005 and October 11, 2007.

At the time of the end of life announcement, work on the next release codenamed Sedna (named after a recently discovered dwarf planet) which was built on top of the VFP9 codebase had already begun. "Sedna" is a set of add-ons to VFP 9.0 of XBase components to support a number of interoperability scenarios with various Microsoft technologies including SQL Server 2005, .NET Framework, Windows Vista, Office 2007, Windows Search and Team Foundation Server (TFS). Microsoft released Sedna under the Shared source license on the CodePlex site. Microsoft has clarified that the VFP core will still remain closed source. Sedna was released on January 25, 2008[4]. As of March 2008, all XBase components of the VFP 9 SP2 (including Sedna) were available for community-development on the CodePlex.

In late March 2007 a grassroots campaign was started by the Spanish-speaking FoxPro community at MasFoxPro[5] (MoreFoxPro in English) to sign a petition to Microsoft to continue updating Visual FoxPro or release it to the community as Open Source. On April 3, 2007 the movement was noted by the technical press[6]

Also on April 3, 2007 Microsoft responded to the petitioner's requests with this statement from Alan Griver:

"We're very aware of the FoxPro community and that played a large part in what we announced on March 13th. It's never an easy decision to announce that we're not going to release another version of a product and it's one that we consider very carefully.

"We're not announcing the end of FoxPro: Obviously, FoxPro applications will continue to work. By some of our internal estimates, there are more applications running in FoxPro 2.6 than there are in VFP and FoxPro 2.6 hasn't been supported in many years. Visual FoxPro 9 will be supported by Microsoft through 2015. <p> "For Microsoft to continue to evolve the FoxPro base, we would need to look at creating a 64-bit development environment and that would involve an almost complete rewrite of the core product. We've also invested in creating a scalable database with SQL Server, including the freely available SQL Server Express Edition. As far as forming a partnership with a third-party is concerned, we've heard from a number of large FoxPro customers that this would make it impossible for them to continue to use FoxPro since it would no longer be from an approved vendor. We felt that putting the environment into open source on CodePlex, which balances the needs of both the community and the large customers, was the best path forward." </blockquote>

Version information

Operating system compatibility

Supported Windows Versions
Version VFP 3.0 VFP 5.0 VFP 6.0 VFP 7.0 VFP 8.0 VFP 9.0
Windows 3.x Yes No No No No No
Windows NT 4.0 Yes Yes Yes Yes No No [7]
Windows 95 Yes Yes Yes Runtime only No No
Windows 98 Yes Yes Yes Yes Runtime only Runtime only
Windows Me Yes Yes Yes Yes Runtime only Runtime only
Windows 2000 Yes Yes Yes Yes Yes Yes
Windows XP Yes Yes Yes Yes Yes Yes
Windows Server 2003  ?  ? Yes Yes Yes Yes
Windows Vista Compatibility Mode Yes Yes Yes Yes Yes
Windows 7 (Build 7000)  ?  ? Yes Yes Yes Yes

Information on executable files

Version VERSION() returns EXE Size EXE Date DLL Size DLL Name
VFP 9 SP2 with Hotfixes Visual FoxPro 09.00.0000.7423 for Windows 5,648 kb April 3, 2009 4,624 kb VFP9R.DLL
VFP 9 SP2 Visual FoxPro 09.00.0000.5721 for Windows 5,648 kb September 21, 2007 4,624 kb VFP9R.DLL
VFP 9 Visual FoxPro 09.00.0000.2412 for Windows 5,620 kb December 13, 2004 4,600 kb VFP9R.DLL
VFP 8 Visual FoxPro 08.00.0000.3117 for Windows 5,236 kb September 25, 2003 4,200 kb VFP8R.DLL
VFP 7 Visual FoxPro 07.00.0000.9465 for Windows 4,260 kb January 4, 2002 3,344 kb VFP7R.DLL
VFP 6 Visual FoxPro 06.00.8961.00 for Windows 4,091 kb August 18, 2000 3,295 kb VFP6R.DLL
VFP 5 Visual FoxPro for Windows 4,065 kb January 24, 1997 3,148 kb VFP500.DLL
VFP 3 Visual FoxPro for Windows 4,374 kb December 16, 1995 3,657 kb VFP300.ESL
FPW 2.6a FoxPro 2.6a for Windows 2,444 kb September 28, 1994 2,946 kb FOXW2600.ESL

Code samples

Hello World example:

MESSAGEBOX("Hello World")


Output of the Hello World program.
loForm = CREATEOBJECT("HiForm")
  AutoCenter = .T.
  Caption = "Hello, World"
  ADD OBJECT lblHi as Label WITH ;
    Caption = "Hello, World!"
loMine = CREATEOBJECT("MyClass")
? loMine.cProp1   && This will work. (Double-ampersand marks an end-of-line comment)
? loMine.cProp2   && Program Error: Property CPROP2 is not found.
? loMine.MyMethod1()  && This will work.
? loMine.MyMethod2()  && Program Error: Property MYMETHOD2 is not found.
  cProp1 = "My Property"    && This is a public property
  HIDDEN cProp2     && This is a private (hidden) property
  PROCEDURE Init()    && Class constructor
    This.cProp2 = "This is a hidden property."
  PROCEDURE MyMethod1()
    * This is a public method, calling a hidden method that returns
    * the value of a hidden property.
    RETURN This.MyMethod2()
  HIDDEN PROCEDURE MyMethod2()  && This is a private (hidden) method
    RETURN This.cProp2

Data handling

Output of the Data handling program.
&& Create a table
CREATE TABLE randData (iData I)
&& Populate with random data using xBase and SQL DML commands
FOR i = 1 TO 50
    REPLACE iData WITH (RAND() * 100)
    INSERT INTO randData (iData) VALUES (RAND() * 100)
&& Place a structural index on the data
INDEX ON iData TAG iData
&& Display ordered data using xBase-style commands
USE randData
LIST NEXT 10  && First 10 
LIST NEXT 10  && Last 10
&& Browse ordered data using SQL DML commands
  FROM randData ;

ODBC access using SQL passthrough

&& Connect to an ODBC data source
nHnd = SQLCONNECT ("ODBCDSN", "user", "pwd")
&& Execute a SQL command
LOCAL nResult
nResult = SQLEXEC (nHnd, "USE master")
IF nResult < 0
  MESSAGEBOX ("MASTER database does not exist!")
&& Retrieve data from the remote server and stores it in
&& a local data cursor
nResult = SQLEXEC (nHnd, "SELECT * FROM authors", "QAUTHORS")
&& Update a record in a remote table using parameters
LOCAL cAuthorID, cAuthorName
cAuthorID = "1001"
cAuthorName = "New name"
nResult = SQLEXEC (nHnd, "UPDATE authors SET auth_name = ?cAuthorName WHERE auth_id = ?cAuthorID")
&& Close the connection

Beta code names


  1. VFP and Linux - Visual FoxPro Wiki
  2. Programming Community Index
  3. A Message to the Community
  4. Microsoft SEDNA download
  5. MasFoxPro
  6. Developers petition Microsoft to reconsider FoxPro phase out Posted by Mary Jo Foley (April 3rd, 2007) - All about Microsoft -
  7. - The free patch for VFP 9.0 has been created by the German FoxPro User Group (dFPUG) and is available at the dFPUG document portal in the directory It allows you to run VFP 9.0 applications on NT 4.0. Microsoft has indicated that this will be addressed in VFP 9.0 SP1.

External links

Microsoft pages

Other pages

Template:Major programming languages Template:MS DevToolsca:Visual FoxPro cs:Visual FoxPro de:Microsoft Visual FoxPro et:Visual FoxPro es:Visual FoxPro fa:ویژوال فاکس‌پرو fr:Visual FoxPro gl:Visual FoxPro hr:Visual FoxPro id:Visual FoxPro it:Visual FoxPro ms:Visual FoxPro nl:Visual FoxPro ja:Microsoft Visual FoxPro pl:Visual FoxPro pt:Visual FoxPro ru:Visual FoxPro tg:Visual FoxPro tr:Visual Foxpro vi:Visual FoxPro

zh:Visual FoxPro

Personal tools

Served in 0.453 secs.