Hello,
I have a program package for making HMI (Human-Machine Interface) systems (for industrial use), which includes a fairly primitive (it actually supports semaphores, internal multithreading among other things, not pointers and data structures, though) built in programming language. I want to expand its functionallity by writing a DLL (yes, I am able to make DLL calls from it) that opens a Windows window (WinAPI) and lets the user do various things. When the user is done, I want to return data from the DLL to my HMI system. When returning a single integer, this shouldn't be a problem, but, sometimes I want to return a string of characters or even several integers. Is this possible to do? I'm not too experienced with such programming, and I'm only at a learning stage, so any suggestions, examples, explanations of why or why not this will work are greatly appreciated! :-)
Thanks,
Eirik