Una vez posicionado en un registro, puedes usar el método UpdateStatus.
Código Delphi
[-]If CDS.UpdateStatus = usUnmodified Then
De la ayuda de Delphi:
Cita:
usUnmodified The current record has no unapplied updates.
usModified The current record has unapplied modifications.
usInserted The current record has been inserted but the insertion was not applied.
usDeleted The current record represents a deleted record, where the deletion has not yet been applied.
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Otra opción es realizar una consulta SQL dando el ID del registro como parámetro.
Saludos.
Al González.