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L-28C wrote:
> I want to use package.loadlib(), but when I run the returned function
> (Beep in the below example) it crashes. 
> local Beep =
> assert(package.loadlib("C:\\WINDOWS\\system32\\kernel32.dll",
> "Beep")) Beep(12, 12) 
> I tried 5.1.1 and then 5.1.2, both give the same result.
> I also tried MessageBox in user32.dll, same result.

As mentionned in package.loadlib manual entry, the functions you can
retrieve with it must be of the type lua_CFunction. You can't access
arbitrary C functions. IIRC there are modules out there that add that
functionnality, but stock Lua can't do what you want.