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Posted 26 Aug 2013

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Generate TLB for Arbitary IDL in Build

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26 Aug 2013CPOL
To generate a TLB file for an IDL file in build

Sometimes, you have multiple IDL files in your ATL project. By default, you will only see one TLB file generated after build. But how to generate a separate TLB file for a specific IDL file?

You could follow the steps below to achieve this goal:

  1. Open your ATL project (assuming it is A.vcxproj) in Visual Studio.
  2. Right-click the project and click "Unload Project".
  3. Right-click the project again and click "Edit A.vcxproj".
  4. Find the IDL file name (assuming it is M.idl) in the editor. It should be within a <Midl> tag.
  5. Add <TypeLibraryName> tags inside <Midl> and condition them with your build configurations and platforms. An example is as below:
<Midl Include="M.idl"> 
  <TypeLibraryName Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">M.tlb</TypeLibraryName>
  <TypeLibraryName Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">M.tlb</TypeLibraryName>
  <TypeLibraryName Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">M.tlb</TypeLibraryName>
  <TypeLibraryName Condition="'$(Configuration)|$(Platform)'=='Release|x64'">M.tlb</TypeLibraryName>

Then M.tlb for your M.idl will be generated to your source code folder in build.


This article, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)


About the Author

Zhuyun Dai
China China
Over 10-years experience in using Microsoft technologies.
At present, working as the architect of a clustered real-time data delivery and visualization system, responsible for the design of component architecture, product packaging and deployment, also targeting private cloud solutions for future.

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