About the function AfxLoadLibrary

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Hi:
When i study the MFC Extension Dll,i encounter some troubles.I can't understand the function of AfxLoadLibrary. Why we use this function,how to use it?If I want to export a class from DLL,what should I do?

Thanks.

Posted 12-Sep-13 16:06pm

Member 10066883

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Ron Beyer · Answer 1 · 2013-09-12T16:25:00

AfxLoadLibrary is for dynamically loading MFC modules based on the name of the DLL or EXE file passed into it. You can read the documentation here.[^]

In order to export a function, you have to use __declspec(dllexport) decoration on the function name, you can follow the tutorials found here[^] to help walk you through it.

Member 10066883 · Answer 2 · 2013-09-12T16:36:00

Solution 2

I know what you meaning.Can i use AfxLoadLibrary export a class? If in a project,there are this code : HINSTANCE m_hViewDll = AfxLoadLibrary(_T("*.lib"); if (!m_hViewDll) return;How Can i understand this.It neither export a function nor a class.

Posted 12-Sep-13 16:36pm

Member 10066883

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Ron Beyer 12-Sep-13 22:38pm

AfxLoadLibrary is for IMPORTING functions. It returns the entry point address to the DLL, so what you wrote above attempts to load a lib file, and if it can't (m_hViewDll == null), it returns. You can't use AfxLoadLibrary to export anything, its for importing a library only.

Member 10066883 12-Sep-13 22:44pm

you mean AfxLoadLibrary can only import function?

Ron Beyer 12-Sep-13 22:46pm

Not sure how else to say it, but yes.

Member 10066883 12-Sep-13 22:48pm

Thank you very much.