Release 10.1A: OpenEdge Development:
Progress Dynamics Advanced Development

> ## Basic rules

> The API uses widget to identify an object that can be accessed or modified using the API. These objects include any object with a widget handle in the Progress environment, plus SmartDataFields (which use the procedure handle).

> Note: The client logic API does not support toolbar button manipulation.

> The functions of the client logic API are, for the most part, intended for use in comparisons and assignments. For example:

>     IF widgetIsModified("customerviewv.discount":U) THEN
>      enableWidget("customerviewv.terms":U).
>     tempDiscount = INTEGER(widgetValue("discount":U)) * 1.10.

> Restricting your use of the API to comparisons and assigns will assure you of the best results for migrations to future versions of Progress Dynamics.

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