Home/ Questions/Q 153691
In Process

The Archive Base Latest Questions

Editorial Team
  • 0
Asked: 2026-05-11T09:50:45+00:00

I am using a .Net2.0 Assembly in Delphi 6 via COM. One of the

  • 0

I am using a .Net2.0 Assembly in Delphi 6 via COM. One of the methods in one of the interfaces returns IEnumerable. As long as I import mscorlib.tlb located in

‘C:\WINDOWS\Microsoft.NET\Framework\v2.0.50727’

, I can reach both IEnumerable and IEnumerator interfaces in Delphi 6. Here is the part where IEnumerable is defined in mscorlib_TLB.pas:

// *********************************************************************// // Interface: IEnumerable // Flags:     (4416) Dual OleAutomation Dispatchable // GUID:      {496B0ABE-CDEE-11D3-88E8-00902754C43A} // *********************************************************************//   IEnumerable = interface(IDispatch)     ['{496B0ABE-CDEE-11D3-88E8-00902754C43A}']     function GetEnumerator: IEnumVARIANT; safecall;   end;

The return value of the GetEnumerator method is not IEnumerator and when I try to cast it to IEnumerator ‘Interface not supported’ exception is thrown.

Has anyone encountered this or a similar problem before? How can it be resolved?

Share

Leave an answer

You must login to add an answer.

Need An Account,

1 Answer

  1. This is standard behavior when interacting with .NET objects through COM interop, as specified here:

    http://msdn.microsoft.com/en-us/library/111chfb8(VS.71).aspx

    • 0