i assume you are talking about C++ , because thats where we use Include, well am no longer on C++ anymore , but here is your answer
Normally in header file the function / Class definitions exist and in lib files the implementation of the functions reside or let me give you an example about it .
Lets we define a Class A in file a.h and its function definition lies in a.cpp
Then when you compile and create the library the definition of function lies in the .h files and the implementation lies in the lib files.
Like say iostream.h files hold the function signatures of the function and the corresponding lib files has the actual implementation of the function.
Thank you for Posting at Dotnetfuda
Were looking forward for your reply
Vuyiswa MasekoGaddad, if this helps please login to Mark As Answer. | Alert Moderator