Revit 2026 API
IDuct |
Interface for external servers implementing duct pressure drop calculation.
Namespace: Autodesk.Revit.DB.Mechanical
Assembly: RevitAPI (in RevitAPI.dll) Version: 26.0.4.0 (26.0.4.0)
Syntax
The IDuctPressureDropServer type exposes the following members.

Name | Description | |
---|---|---|
![]() | Calculate | Calculate the duct pressure drop. |
![]() | GetDescription |
Implement this method to return a description of the server.
(Inherited from IExternalServer) |
![]() | GetHtmlDescription | The method that Revit will invoke to get an HTML formatted description of the server. |
![]() | GetInformationLink | The method that Revit will invoke to obtain a URL address which provides more information about the server. |
![]() | GetName |
Implement this method to return the name of the server.
(Inherited from IExternalServer) |
![]() | GetServerId |
Implement this method to return the id of the server.
(Inherited from IExternalServer) |
![]() | GetServiceId |
Implement this method to return the id of the service.
(Inherited from IExternalServer) |
![]() | GetVendorId |
Implement this method to return the id of the vendor of the server.
(Inherited from IExternalServer) |

A typical way to use the external server can be:
- Implement a server class that derives from this interface
- Create a new server object and register it with the service, see ExternalServiceRegistry.
- Assign server for the duct pressure drop calculation in DuctSettings.
See Also