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Editorial Team
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Asked: 2026-06-12T19:40:38+00:00

I tried to use EmguCV library in Windows 8 Store App. Previously, it works

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I tried to use EmguCV library in Windows 8 Store App. Previously, it works fine for a Windows 7 Desktop App project.

I ensure my Windows 8 Store App project directory [C:\Projects\App2\App2\bin\Debug] is having all the necessary DLLs file.

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When I execute directly in Microsoft Visual Studio 2012 Ultimate through Local Machine button, I get the following exception.

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Exception:Thrown: “Unable to load DLL ‘opencv_core240’: The specified
module could not be found. (Exception from HRESULT: 0x8007007E)”
(System.DllNotFoundException) A System.DllNotFoundException was
thrown: “Unable to load DLL ‘opencv_core240’: The specified module
could not be found. (Exception from HRESULT: 0x8007007E)”

My question is : How can I know whether the failure is caused by my Windows 8 Store App unable to locate the DLL files? Or, the located DLL files is not in the format expected by Windows 8 Store App? (The DLLs are OK for Windows 7 desktop software)

If the reason is caused by the format is not recognized by Windows 8 Store App, does re-compile the whole DLL project (The OpenCV source code is in C++, and EmguCV which acts as a wrapper is in C#) under Windows Store -> Class Library (Windows Store apps) will help?

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1 Answer

  1. Editorial Team

    If these dlls worked for Windows 7 desktop apps, then they won’t work for Windows 8 Metro apps, because it’s completely different platform and API. You cannot load just any dll in your Windows 8 WinRT project.

    If you have source code for the dll, you can try to recompile it as a Windows Runtime Component, byt there is a strong possibility the original code used APIs not available in WinRT.

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