Dynamically loading modules

[milner]

Hi,

I'd like to make a project that can be modular in nature. I want to be able to add code modules AFTER I've compiled the main program.

This is what I was thinking: Every module will have a set of interface functions that are called in the same manner for every module by the main program. Every module must have these functions.

The Question... What can I use for my modules?? I was thinking DLLs but I don't know if they can be loaded dynamically at run time.

I want to be able to put all the modules in a directory and just by using their filenames, load them and run their functions.

Is this possible?? Is my method possible? Does anyone know a better/easier way to do this?

Thanks

- Mike -

 

[palbano]

> Is this possible??

Yes, it's done all the time.

> Is my method possible?

Yes

> Does anyone know a better/easier way to do this?

You can use COM as well as a straight DLL.

Good luck
-pete

 

[milner]

ok, so using straight DLL, How do I iterate between the folder of DLL files? Actually, first, how do I dynamically link to the DLLs? Do I need to make one first so my project will actually compile??

If you have any basic direction you can give, that'd be great.

Thanks,

Mike

 

[palbano]

Mike,

To dynamically link to DLL's you need learn how to use the following API's:

LoadLibrary()
GetProcAddress()

There are many articles and samples on MSDN.

> How do I iterate between the folder of DLL files?

I have no idea what that means.

-pete