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ATL COM - How many objects

Posted on 2004-04-01
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How many ATL Simple Objects can I add to an ATL COM Project?
How many .idl files can I use?
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Question by:mmouer
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lakshman_ce earned 500 total points
ID: 10735592
There will be only one idl file whatever the number of ATL objects you add to your project.
For eg refer to the following contents from idl file
// ATLTest.idl : IDL source for ATLTest.dll
//

// This file will be processed by the MIDL tool to
// produce the type library (ATLTest.tlb) and marshalling code.

import "oaidl.idl";
import "ocidl.idl";
      [
            object,
            uuid(799A3100-F56B-4BB4-8849-BED7D81FDF2B),
            dual,
            helpstring("ITest1 Interface"),
            pointer_default(unique)
      ]
      interface ITest1 : IDispatch
      {
      };
      [
            object,
            uuid(4A108BA1-BE45-48DB-A552-54929A07425C),
            dual,
            helpstring("ITest2 Interface"),
            pointer_default(unique)
      ]
      interface ITest2 : IDispatch
      {
      };

[
      uuid(3E06C944-4A96-4C1E-BE0E-F0D7A9985E3F),
      version(1.0),
      helpstring("ATLTest 1.0 Type Library")
]
library ATLTESTLib
{
      importlib("stdole32.tlb");
      importlib("stdole2.tlb");

      [
            uuid(542115B7-3865-4235-A0D5-DD1C3A311740),
            helpstring("Test1 Class")
      ]
      coclass Test1
      {
            [default] interface ITest1;
      };
      [
            uuid(6047A1CB-D030-4EF3-84EE-63D277CC82B3),
            helpstring("Test2 Class")
      ]
      coclass Test2
      {
            [default] interface ITest2;
      };
};


Here Test1 and Test2 are ATL Simple objects.

-Lakshman
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LVL 15

Expert Comment

by:lakshman_ce
ID: 10735649
I also don't see any limit there. I have across projects with more than 100 ATL objects.

-Lakshman
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