Author Topic: How to use threads with class member functions. (Read 4806 times)

Howitzer21 · « **on:** February 15, 2012, 02:00:41 am »

How do you use threads with class member functions? If I pass a function pointer to a global function to a new Thread object, that works fine. If I try to pass a function pointer to a member function inside of a class, that doesn't work out too well. What's the syntax for it? Thanks!

Laurent · « **Reply #1 on:** February 15, 2012, 08:04:27 am »

SFML 1.6 or 2?

Howitzer21 · « **Reply #2 on:** February 15, 2012, 04:52:19 pm »

Laurent · « **Reply #3 on:** February 15, 2012, 05:19:34 pm »

Ok. So just read the tutorial please

Howitzer21 · « **Reply #4 on:** February 15, 2012, 05:29:26 pm »

I DID read the tutorial. I practiced it and everything. There was stuff in there for using them with function pointers to globally-defined functions, as well as inheriting a class from them. But as for not using inheritance and just passing a function pointer to a class function, there's really no reference there. I've tried it myself and haven't been able to get it to wrok.

Howitzer21 · « **Reply #5 on:** February 15, 2012, 05:34:45 pm »

Well, I did manage to get it working with static functions, but what if I want to use a function specifically associated with that object without having the class inherit from Thread? Is there a way to do this?

Nexus · « **Reply #6 on:** February 15, 2012, 05:37:44 pm »

Quote from: "Howitzer21"

But as for not using inheritance and just passing a function pointer to a class function, there's really no reference there.

Because there is no possibility. Function pointers and member function pointers are not compatible to each other.

If I remember the old API correctly, you can use the void* to call indirectly a class member function. But you'd probably better use SFML 2.

Howitzer21 · « **Reply #7 on:** February 15, 2012, 05:43:31 pm »

Thanks, Nexus!