How do I use other .dll files's function for my current .cpp program

[rhpingwoo]

Hello,

This may be a very silly question to some people, but I am new to visual C++ programming.

Can someone tell me how I can include the function from an old .cpp program which generated a .dll file, in my current .cpp program.

Just said there is a fuction call "Checking" in ABCD.dll file, and now i want to use it in my program, how do I do it?? Do I just simply use a #include???

Thanks
~.~
rhpingwoo

 

[palbano]

you have to have the entire function signature declared correctly. Ideally you would have a header file provided by the manufacturer of the DLL that you can include

#include "theheaderfile.h"

Then you need to link to the DLL through a "lib" file

#pragma comment( lib, "lib_file_name")

hope that helps
-pete

 

[rhpingwoo]

how do i call the function in lib then???
Just like all the other class??

If the function is call "Checking", so i just say
lib::checking()
??

raph

 

[palbano]

>> how do i call the function in lib then???
>> Just like all the other class??

just as when the function is part of the code of your project. The declaration of the function signature determines how you must call it yes?

-pete