How to define IInterface type for Delphi 4

Question

It seems that Delphi 4 does not have IInterface type at all in system.pas

How can I define this type myself so that I can use JEDI?

try type IInterface = IUnknown; – Passella Aug 12 '14 at 11:32 — Passella, Aug 12 '14 at 11:32

score 5 · Accepted Answer · edited Aug 12 '14 at 12:28

5

IInterface was introduced later than Delphi 4. For Delphi 4 you use IUnknown in place of IInterface.

If memory serves, IInterface was introduced in Delphi 6 which was the release corresponding to the Kylix Linux compiler. The change was made to avoid exposing Windows specific IUnknown nomenclature to the new cross-platform Delphi.

edited Aug 12 '14 at 12:28

Rudy Velthuis

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answered Aug 12 '14 at 11:57

David Heffernan

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How to define IInterface type for Delphi 4

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