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Error raised when an observer error occurs
Source position: classesh.inc line 182
type EObserver = class(Exception)  | 
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Error raised when an observer error occurs  | 
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Base class of all exceptions.  | 
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TObject  | 
EObserver is an error that is raised when an object is registered as an observer, and it does not implement the IFPObserver interface.
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Interface for an object to observe other objects.  | 
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Attach a new observer to the object  |