Originally Posted by mark_h
Not sure what you mean by uedll, but I have used attr.input in 4c4 to flip a field for entry. I think I get update.status or something like that. I am not sure if that is what you are looking for if this is something different.
i think "uedll" is "user exit" .?
(TABLENAMEue (e.g. tisfc001ue))
attr.input in B4 is disable.fields in LN and is done in sessionscript.
User Exit :
A User Exit DLL (UEDLL) is a DLL that will reside outside the standard software. It will have the same name as a standard DAL with the extension 'ue' (for 'user exit'). E.g. 'whinh200ue' for table whinh200. Customers can implement a UEDLL in order to be able to define extra business logic before and after the standard 'before' and 'after' handling of saves and deletes, by means of specific hooks that will be executed by the 4GL engine and/or DAL Engine. In this way it is possible to e.g. conditionally publish data changes to the outside world.
Interaction with 4GL Engine / DAL Engine
When present, the User Exit DLL for a certain table will be loaded by the 4GL engine/DAL Engine by the time the DAL for this particular table will be loaded. In situations where no DAL is present this will be the moment at which a DAL would be loaded if it existed. This means that there is no need to have a DAL in order to make use of the UEDLL.
A DLL becomes a UEDLL when it meets the following conditions:
Its name is consisting of the table code with 'ue' as suffix, like whinh200ue
It includes bic_dal, as follows: #include <bic_dal>
A UEDLL is treated like a regular DAL. This means all kind of DAL related functionality can be used, like:
Pre-defined variable subdal
Note however that the following restrictions apply:
Business methods cannot be implemented in a UEDLL Instead the business logic should be programmed in another (separate) general DLL.
It is strongly discouraged to define other external functions in a UEDLL and link the UEDLL directly to other scripts. Instead, use a normal general DLL. (This also applies to regular DALs).
User Exit Hooks
A UEDLL script can contain the following hooks: