EAbstractError is the exception class for attempts to call an abstract method.
EAbstractError = class(Exception);
class EAbstractError : public Exception;
SysUtils
EAbstractError is raised when an application tries to call a Delphi abstract method. It is also raised at design time when a component with Delphi abstract method is placed on a form.
Delphi abstract methods are declared with the abstract directive and must be overridden in descendant classes before an instance object can be created.
C++ code can catch this error, but never throws it.
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Class Hierarchy