lua script yield and resume in C Function

["Yan Liang" <yanliang@...>]

Hello, everyone!

I am integrating Lua to my application, a game.  I need stop the script running at some point, and resume at some time. I mean that lua script will call some C function defined by the game, the function will start a task, then the script must wait for the task, when the task finished the script will resume. For example:

 

ok=MessageBox("are you ok?");

-- need stop script to waiting for user input here

if ok then

    DoSomething();

else

    DoSomethingElse();

end

 

I try to call "lua_yield" in MessageBox() C function,but get an error "attempt do yield across metamethod/C-call boundary".

 

Any comments please. thanks.