IDL

IDL

, . ( ) IDL , . IDL- , , :

 [uuid(753A8A7D-A7FF-11d0-8C30-0080C73925BA)]  coclass Gorilla {      interface IApe;     interface IWarrior; } 

IDL- (coclass) (library definition). IDL ( , , , ) . , IDL, . IDL- , Visual Basic Java.

, IDL- , , , :

 // apes.idl // bring in IDL definitions of ape interfaces  //   IDL-       import "apeitfs.idl"; [ uuid(753A8A80-A7FF-11d0-8C30-0080C73925BA), // LIBID -    version(1.0), // version number of library -        lcid(9), // locale ID of library (english)  //       (english)  helpstring("Library of the Apes")  // title of library -      ] library ApeLib  {  importlib("stdole32.tlb"); // bring in std defs. -      [uuid(753A8A7D-A7FF-11d0-8C30-0080C73925BA)]  coclass Gorilla {    [default] interface IApe;   interface IWarrior; } [uuid(753A8A7E-A7FF-11d0-8C30-0080C73925BA)]  coclass Chimpanzee {    [default] interface IApe;   interface IEgghead; } [uuid(753A8A7F-A7FF-11d0-8C30-O080C73925BA)]  coclass Orangutan {    [default] interface IApe;   interface IKeeperOfTheFaith; }  } 

[default] , . , , [default] , :

 Dim ursus as Gorilla 

IDL- Gorilla, :

 Dim ursus as IApe 

IApe Gorilla. EatBanana SwingFromTree ursus. [default] , coclass.

IDL, apes.h apesitfs.h. apesitfs.h IApe, IWarrior, IKeeperOfTheFaith IEgghead. , apes.h GUID :

 extern " " const CLSID CLSID_Gorilla; extern " " const CLSID CLSID_Chimpanzee; extern " " const CLSID CLSID_Orangutan; 

apes_i. CLSID. apes.tlb , Visual Basic :

 Dim ape As IApe Dim warrior as IWarrior Set ape = New Gorilla ' ask   for a new gorilla '         gorilla Set warrior = ape 

Java- :

 I   ; IWarrior warrior;  = new Gorilla(); // no cast needed for [default] //           [default] ??? warrior = (IWarrior)ape; 

CLSID_Gorilla CoCreateInstanceEx , .

IDL IApe, IWarrior, IEgghead IKeeperOfTheFaith . , , . , , . IDL- , IDL- , . IDL- , IDL- , , IDL- , . IDL- , , , . , IDL- , , importlib:

 // humans.idl // apeitfs.idl DOESN'T have a library statement, so import  // apeitfs.idl HE     library,      import "apeitfs.idl"; [   uuid(753A8AC9-A7FF-11d0-8C30-0080C73925BA),    version(1.0), lcld(9), helpstring("Humans that need apes")    // " ,      "  ] library HumanLib {    importlib("stdole32.tlb");   // bring in std defs. -          // Dogs.idl DOES have a library definition, so importlib    // its corresponding type library    // Dogs.idl      ,      //            importlib("dogs.tlb");   [uuid(753A8AD1-A7FF-11d0-8C30-0080C73925BA)]    coclass DogApe {     interface IDog;     interface IApe;   } } 

IDL- , , , . , IDL, importlib . , IDL- (IDL-ism) , importlib , . MIDL, , , IDL.