Talk:Migrating C++ Code from import to TLIBIMP.EXE

This great. The key item missing, however, is that "TLIBIMP declares the coclass as a simple typedef of the default interface of the coclass". IOW

With #import, __uuidof(CoClass) returns the GUID of the CoClass With TLIBIMP, __uuidof(CoClass) returns the GUID of the default interface of the CoClass.

Thanks!

Bruneau

---

Please replace the ridl code (first code) with the following:

[
  uuid(ECD2547D-5BC5-49C6-A7D1-9D55C0A9F0DF),
  version(1.0)

]
library TestLibrary
{

  importlib("stdole2.tlb");

  coclass CoClass1;
  interface Interface1;

  [
    uuid(AAAAAAAA-AAAA-AAAA-AAAA-AAAAAAAAAAAA),
    dual,
    oleautomation
  ]
  interface Interface1: IDispatch
  {
  };

  [
    uuid(CCCCCCCC-CCCC-CCCC-CCCC-CCCCCCCCCCCC),
  ]
  coclass CoClass1
  {
    [default] interface Interface1;
  };

};

The code that's there is the original that I wrote. But then I changed the GUIDs to AAAAA an CCCCC to make it easier to see which was the CoClass' and which was the interface's. However, I forgot to update the .ridl code after that change. Thank you BBabet

I would not necessarily say

 The #import directive incorrectly associates the GUID of a coclass with the C++ type representing the coclass. 
 TLIBIMP correctly associates the class identifer (CLSID) as the GUID of the coclass. 

The issue is the usage of correctly and incorrectly. Matter of fact, #import is the one which correctly associates the correct GUID. TLIBIMP does something different to follow what Delphi does/did. So I would probably leave out the 'correctly' and 'incorrectly'.

BBabet

Response

I have incorporated your comments and used your text for the bullets at the beginning. Many thanks!

KrisHouser 13:32, 7 July 2011 (PDT)