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Abstract base class of event listeners. More...
#include <openvrml/event.h>
Public Member Functions | |
virtual | ~event_listener ()=0 throw () |
Destroy. | |
virtual field_value::type_id | type () const =0 throw () |
The field_value::type_id for the type accepted by the event listener. |
Protected Member Functions | |
event_listener () throw () | |
Construct. |
Abstract base class of event listeners.
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pure virtual |
Destroy.
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protected |
Construct.
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pure virtual |
The field_value::type_id
for the type accepted by the event listener.
field_value::type_id
for the type accepted by the event listener. Implemented in openvrml::field_value_listener< FieldValue >, openvrml::field_value_listener< mfstring >, and openvrml::field_value_listener< sfnode >.