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unresolved external symbol ATL::AtlWinModuleInit

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It took me a long time to track down these link errors:

main.obj : error LNK2001: unresolved external symbol "long __stdcall ATL::AtlWinModuleInit(struct ATL::_ATL_WIN_MODULE70 *)" (?AtlWinModuleInit@ATL@@YGJPAU_ATL_WIN_MODULE70@1@@Z)

main.obj : error LNK2001: unresolved external symbol "class ATL::CAtlBaseModule ATL::_AtlBaseModule" (?_AtlBaseModule@ATL@@3VCAtlBaseModule@1@A)

The solution is to include atls.lib (for release builds) or atlsd.lib (for debug builds) in your linker dependencies.

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Comments

  • Anonymous
    June 11, 2005
    Thanks for posting this info! Saved me a lot of trouble. I set out today to learn how to write code to manipulate video, and it's amazing how difficult and time-consuming it is just to find the right MSFT SDKs and get the examples compiled and working...

    Walter Gillett