| Interface | Description | |
|---|---|---|
 | IHpDLibraryPlugin | Base interface for EPLAN Harness proD Library plugins. |
| IHpDLibraryPluginLoader | Base interface for initialization of EPLAN Harness proD Library plugins. |
| IHpDPlugin | Base interface for EPLAN Harness proD Studio plugins. |
| IHpDPluginLoader | Base interface for initialization of EPLAN Harness proD Studio plugins. |
| IHpDPluginOccTask | Base interface for special type of Harness proD plugin for custom task. Use this task for issues related with a single EPLAN.Harness.API.Occurrences.Interfaces.I3DOccurrence. Can appears mutiple times in the task view (for each occurrence that met the condition in the IsActive method). |
| IHpDPluginTask | Base interface for special type of Harness proD plugin for custom task. Use this task for issues related with the whole EPLAN.Harness.API.Projects.Documents.Designer. Can appears only once in the task view (if the designer met the condition in the IsActive method). |