clipper

What is the best way today to maintain clipper 5.3 code?

Are there any successor products on DOS, Windows or Linux? ...

DBF Large Char Field...

I have a database file that I beleive was created with Clipper but can't say for sure (I have .ntx files for indexes which I understand is what Clipper uses). I am trying to create a C# application that will read this database using the System.Data.OleDB namespace. For the most part I can sucessfully read the contents of the tables the...

How do I read data from an xBase/Clipper file in VB6?

DBF file is in C:\dbase\clip53\PRG\stkmenu\WPACK3\ DBF file is called WPACKS.CFG (deliberately not .DBF) The VB6 code in an ActiveX EXE for opening the database and recordset: Function OpenDatabase(sFile As Variant, Optional sProvider As Variant = "Provider=Microsoft.Jet.OLEDB.4.0") As Variant ' ADODB.Connection Dim nErr As Long...

What is the most active clipper-like community?

I work for a company that is using Microsoft Visual Foxpro 9. Since Microsoft has abandoned us, we no longer get fresh driver updates (the last was for ODBC was built for VFP version 6.) Clipper and Foxpro aren't too different, from what I understand. So if they are producing drivers, then that might be a good place to migrate to. Howe...

Record locking problem between linux and Windows

I need to run a bunch of old DOS FoxPro / Clipper applications in linux under DOSEMU. The programs access their "databases" located on a network server (could be a Windows or Linux server) Actually, the programs ran fine, but I cannot manage to make the record locking work as supposed: I can run a program in two terminals (or the server...

Greenleaf Database Library in C#

I am creating a WPF application that will integrate with an existing system using a Clipper database. I have been working through some issues trying to access char fields with lengths greater than 255. The Jet and FoxPro OLEDB providers seem to cut off the data in these larger fields. I have modified and used the DotNetDBF library but...

Can I implement code snippets at runtime in vb?

I need to port an old Clipper app to vb.net. It relies heavily on user-written macros and indeed would be almost impossible to create without them. As VB is interpreted, I am sure it must be possible to implement code that the user has entered, but I have no idea how to do so! For example, I might have a text field txtMacro, into which ...

Insert a Date field into a Clipper Database using OLE

We're trying to insert data into a clipper database file (DBF file with NTX index file). For a variety of reasons, we cannot change the database format. We are currently seeing two issues: With our existing code, we are not able to update or utilize the NTX index file (I believe). We would like to be able to do this. Do you know of...

How do I launch a WPF app from command.com. I'm getting a FontCache error.

I know this is not ideal, but my constraint is that I have a legacy application written in Clipper. I want to launch a new, WinForms/WPF application from inside the application (to ease transition). This legacy application written in Clipper launches using: SwpRunCmd("C:\MyApp\MyBat.bat",0) The batch file contains something like thi...

Benefits of migrate a clipper application running on Netware/ipx to Windows server 2003/IP

Anyone knows if there are benefits migrating from netware IPX to Server 2003/IP ? I´m running a legacy clipper application and I want to add php or java applications. the actual: environment is: Novel Netware 6 - IPX - ADS 6 I´m thinking to migrate to : Server 2003 - ADS 10 - IP USE OF ADSDOSIP ...