Release 10.1A: OpenEdge Development:
ADM Reference

fieldModified

Event procedure that handles the setting of DataModified when a field has changed in the datavisual (viewer or browser) object. The setting for DataModified is determined by the setting specified for the ModifyFields property.

Location: viewer.p

Parameters:

INPUT phField AS HANDLE

Handle of a field whose value has changed.

Notes:

By default, DataModified is set to TRUE. For informaton about changing the default, see the "ModifyFields" section property.
The passed field must be in the list of EnabledFields or EnabledObjFlds.
This procedure is called from valueChanged, DataModified of the SmartDataField, or the Client APIs that change widget values.
Returns TRUE if this change triggers a DataModified change. For example, this is the first change in the object.