problem with creating .lib file in VisualStudio

Question

I am tring to build .dll file in which includes basic function and .cpp file for purpose also depends on other .lib file.

but when I try to build my dll project. It only builds .dll. But I need to create .lib file. Can you tell me what could be wrong. for reference I have added some picture below.

Answer 1

I think that you should define the BUILD_MY_DLL macro (in Project Properties, C/C++, Preprocessor Definitions, for all of configurations and platforms), so that the SHARED_LIB is expanded to __declspec(dllexport).

In addition, make sure that the functions are implemented in shared_lib.cpp and have the correct names and parameters.

Show details about shared_lib.cpp if this does not help.

Answer 2

The Visual Studio Dynamic-Link Library project template will automatically include a preprocessor definition for all Platform/Configuration combinations that can be used in a header to control exports/imports. For example, for a project named shared_lib VS2022 creates a preprocessor definition named SHAREDLIB_EXPORTS -

So if you change your code to use SHAREDLIB_EXPORTS instead of BUILD_MY_DLL the dll functions will be exported and an import library should be created.