LuaInterface.LuaDLL.lua_pushcclosure C# (CSharp) Method

        public static extern void lua_pushcclosure(IntPtr l, IntPtr f, int nup);

 public static void wlua_pushcclosure(IntPtr luaState, LuaCSFunction f, int nup)
 {
     LuaDLL.wlua_getglobal(luaState, "cswrapfunc");   //nup,wrap
     LuaDLL.lua_insert(luaState, -nup - 1);           //wrap,nup
     LuaDLL.lua_pushcclosure(luaState, f, nup);       //wrap,f0
     LuaDLL.lua_pcall(luaState, 1, 1, 0);             //f
 }