dynamically loading an unmanaged dll

[shezh]

Hi, I'm trying to dynamically load an unmanaged dll and call a function within it from a managed C++ app. I've managed to do this in an unmanaged C++ app, using calls to LoadLibrary and GetProcAdddress, but don't know what to do in the .NET version. I know there's P/Invoke, but with that the library has to be declared at compile-time, and I won't know the (unmanaged) library until run-time. So i guess the question is how can I use the LoadLibrary and GetProcAddress functions in managed C++ (again not using P/Invoke, as the library won't be known until run-time)? Thanks for your help Cheeze

[Jun Du]

Actually, P/Invoking unmanaged DLL via DllImport() is dynamic loading. Until the program runs to that point, it won't check if the DLL exists or if the function call has right signature.

Best, Jun

[Nish Nishant]

cheeze103 wrote:

I've managed to do this in an unmanaged C++ app, using calls to LoadLibrary and GetProcAdddress, but don't know what to do in the .NET version.

You can use the exact same code in your managed app too. Just #include the required header files, and link with the required import libs.

Regards, Nish

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Nish’s thoughts on MFC, C++/CLI and .NET (my blog)
Currently working on C++/CLI in Action for Manning Publications. Also visit the Ultimate Toolbox blog (New)