Re: [Dev-C++] Static members for callbacks

[Abhijit S. <mu...@gm...>]

> > You can't use non-static methods for windows callbacks (like in
> > CreateThread(), SetWindowsHookEx()) which need you to suppply
> > a call-back
> > function.
>
>
> This is too Win32 to me. What do you mean by call-back function. Can you
> provide a small concrete example?


Basically, typedef function_pointer call_back;

For example, in CreateThread(), the args are:

HANDLE CreateThread(
    LPSECURITY_ATTRIBUTES  lpThreadAttributes, // address of thread security
attributes
    DWORD  dwStackSize, // initial thread stack size, in bytes
    LPTHREAD_START_ROUTINE  lpStartAddress, // address of thread function
    LPVOID  lpParameter, // argument for new thread
    DWORD  dwCreationFlags, // creation flags
    LPDWORD  lpThreadId  // address of returned thread identifier
   );

Here, LPTHREAD_START_ROUTINE should be a function pointer to a 32-bit
returning (void *) accepting function, as in

    DWORD my_thread_proc(void *some_arg);

where DWORD is, on Win32, unsigned long.

PS: Sorry for a double-post of the previous message. I thought it hadn't got
through,
so I reposted it, after which I received the original message... I guess the
list server is acting up...