What is the function "Send_Dyn".

Where can I find Docs?

TIA

Steve C.

Steve,

Send_Dyn allows you to send back upto 64K's worth of data to a client, but you'd only really want to do this if you were using your own front-end (eg VB or Deplhi) to OpenEngine.

Some system routines such as List_tables, List_Index etc use it to return data, which is the list you see in the Results window when you run them in the System Editor.

It was doc'd in the OE docs and in early (OI 2.x) OI manuals

[email protected]

Sprezzatura Ltd

World Leaders in all things RevSoft

Carl,

Just this morning I had some difficulties with Send_Dyn (it's the first time I use it, I think), so when I saw your posting I checked my 2.0 docs, but didn't find the answers I needed.

I have made this SP that I run from the Sys Ed Exec line. The SP reports both to a DOS file and to the Report Viewer. It's nice having the report in the Report Viewer, because I can see progress when the SP runs. And if the report is short enough, I can copy it from the Report Viewer to where I need it; I don't have to get the DOS file. But Send_Dyn fails with data ] 64K. How can I check for that? I tried to check the status Send_Dyn returns and stop calling it after I got an error status (then I just wrote to the DOS file). Must I really keep count myself and stop calling Send_Dyn before I reach 64K?

In case I must perhaps make the added provision of clearing the result viewer first. Can that also be done programmatically? I.e, Send_Dyn writes to the client, but is there a function that *clears* the client too?

- Oystein -

Hi Oystein,

You have to check for ]64K with Send_Dyn. It's only use is to send chunks of data back a the front end. You can call it multiple times before your Basic+ program ends however.

Roughly this is how it operates:

On the Front End:

Get a command

Send command to OpenEngine

Loop

    Get results from engine

    Begin Case

        Case We've got data - some processing and continue loop

        Case We've got error - Error handling - ExitLoop

        Case Completed - ExitLoop

   End Case

 While Not ExitLoop

 Repeat

In the Basic+ program

Loop

 Read a record

 Process it

 Send_Dyn( SomeData ) ; * calls  the we've got data Case in the front end

Repeat

Return

There's no way AFAIK to clear the results window. This is controlled by System Editor. ( Though if you have the handle of the EDIT control it uses you could, but that's another story )

[email protected]

Sprezzatura Ltd

World Leaders in all things RevSoft

Steve,

Send_Dyn isn't typically used unless you are developing tools.

The good news is that we plan to add some features to Send_Dyn to allow developers to get the results back themselves via a callback so that functions that are ordinarily hard to use programmatically would be available.

Cameron Purdy

Revelation Software

Cameron..

I think I understand Send_Dyn can return data to

the system editor when a SP is run.. Is this

correct and How? I've looked at my old

OI2.X docs but still can't find any info.

on Send_Dyn. I'm working on SP,Basic+, and Datasets

and would like to find out if Send_Dyn can help

me.

Thanks..,.Steve C.

Steve,

Send_Dyn can't help you unless you are doing a very specific sort of task involving REVCAPI or some tool that uses it. The System Editor, as an example, uses REVCAPI to access the engine. Results come back from BASIC+ code by using Send_Dyn. (You can see the requests in the engine window.)

Cameron Purdy

Revelation Software

Steve,

Send_Dyn is docced in the OI 2.0 Tech Ref Man, but not in the next version, the OI 2.5 Prog Ref Man. I can always fax you the relevant page if you're still interested.

- Oystein -

Øystein Reigem, Humanities Information Technologies, Harald Haarfagresgt 31, N-5007 Bergen, Norway. Tel: +47 55 58 32 42. Fax: +47 55 58 94 70. E-mail: [email protected]

View this thread on the forum...