Cannot use enumeration values from type libraries.   

Hello newsgroup,

my question is about the MIDL-compiler. I want to import a type library 
into my own library, but I can't use any of the imported enumeration values.

The base library looks like this:
[
   uuid(6A7B3B27-AE89-4255-8BEF-8B937FDD788B),
   version(1.0)
]
library TestBaseLibrary
{
   importlib("stdole32.tlb");
   importlib("stdole2.tlb");
   [
     uuid(E0AFC11A-EFB3-405c-9C18-47ABEF1E4292),
     v1_enum
   ]
   enum ETestEnum
   {
     TEST_IDENTIFIER = 0
   };
}

and the importing library like this:
[
	uuid(35D8801C-9E59-4388-BCBA-D9FA41A50572),
	version(1.0)
]
library TestDerivedLibrary
{
   importlib("TestBaseLibrary.tlb");

   [
       object,
       uuid(BED6D356-8546-482d-8F11-516BDBF43B72),
       pointer_default(unique)
   ]
   interface ITestInterface
   {
     [id(1)]
     HRESULT TestMethod
     (
       [in, defaultvalue(TEST_IDENTIFIER)] enum ETestEnum MyEnum
     );
   };
}

However, if I try to compile this I get "error MIDL2035 : constant 
expression expected". What's the cause?

TIA,
Stuart

date: Wed, 24 May 2006 17:17:02 +0200   author:   Stuart Redmann