updating the "list" of available sources

[student]

I’m writing an application that is meant to work with a specific source. Because of that, I bypass the Select source screen and work with the CONTROL/IDENTITY/GETFIRST and GETNEXT.

For some reason, no source seems to be available when I use these triplets. When I use CONTROL/IDENTITY/USERSELECT immediately afterward (the application does this if the ‘preferred’ source could not be found), the preferred source is suddenly available.

My guess is that somehow, the USERSELECT triplet causes the DSM to update the list of available sources, while the GETFIRST triplet does not. I have no idea why this would be…

Has anyone else experienced this behaviour? Does anyone know a solution?

[Author]

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