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Your PC based application can be developed using Visual Basic, Paradox, Delphi, Gupta, PowerBuilder, Excel, REXX, C or in fact any PC development tool that can reference a third party DLL.
- The application program makes calls to the LANSA Open functions which reside locally on the PC. This call may be to a function to format data, send information to the server or receive information from the server.
For example, if the application calls the LANSA Open function LceFetch (to get a record from the host), LANSA Open sends a request for data to the server.
- On the server, a LANSA Open program receives the request and determines what action to take.
If a file needs to be accessed, the appropriate LANSA OAM (or I/O Module) is called and the data is retrieved and formatted.
- Once the data is retrieved, it is transmitted back to the PC.
- The PC application can then use other LANSA Open functions to access that data which is stored on the PC.
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Note that if you are programming using any language that targets the .NET runtime (e.g. C#, VB.NET), you should use LANSA Open for .NET instead of LANSA Open. The use of LANSA Open from .NET languages is NOT recommended due to incompatibility with .NET strings – manual conversion is required when passing .NET strings. |