How to create a COM object for the Task-Scheduler!

[bradeneuropeArthur]

Hi,

How to create a COM object for the Task-Scheduler using ServiceModuleInterfaceDef.tlb?

Are there any examples available?

Found this in the Help but I need some more support on this:

"Definine COM interface

If you want to use the custom task functionality with COM, first create a COM component which is derived from IServiceModules. The file ServiceModuleInterfaceDef.tlb, which defines the COM interface -- IServiceModules, is installed at Program Files 

 Autodesk 

 Inventor [version] 

 Bin. There are five methods defined in the interface:

• HRESULT StartTask() -- Must be implemented to start the actual custom work at a scheduled time.
• HRESULT KillTask(void) -- Reserved.
• HRESULT SetOptions ([in] VARIANT varOptions) -- Passes in the options specified on the UI.
• HRESULT GetInventorProcessID([in, out] SAFEARRAY(long)* ppsaInventorProcIDs) -- Retrieves Inventor process IDs for monitor usage.
• HRESULT SetCommand)(*[in} enumTaskCmd enumTaskCmd) -- Sets the commands for pause, stop, and resume task.

Note: Reference the file ServiceModuleInterfaceDef.tlb within your project for access to the COM interface."

Regards,

[bradeneuropeArthur]

@johnsonshiue 

Do you know what is needed here?

If I reference the files I get an error that the reference cannot be made.

[bradeneuropeArthur]

Any help would be needed with this.

[FRFR1426]

You need to create an interop dll. Open the developer command prompt then type theses commands:

cd "C:\Program Files\Autodesk\Inventor 2025\Bin\"
tlbimp /machine:X64 ServiceModuleInterfaceDef.tlb /out:ServiceModuleInterfaceDef.dll

 Then reference the dll in your .NET project.