Calling Lua table functions from C++ w/params

[Rick]

I have a Lua table that has functions similar to the App table. I'm able to copy how App is called but I have extra params in my function and not sure how to add those. I'm really not all that familiar with stack type programming.

 

My lua function is:

 

function NoesisHelper:EventRaised(element, event, args)
end

 

where element and event are strings and args is a table.

 

The way I call this without filling in those params is:

 

int stacksize = Interpreter::GetStackSize();

Interpreter::GetGlobal("NoesisHelper");
Interpreter::PushString("EventRaised");

// push the Noesis table onto the stack as "self"
Interpreter::GetTable();
Interpreter::PushValue(-2);

Interpreter::Invoke(1, 1, 0);

// restore the stack size
Interpreter::SetStackSize(stacksize);

What do I do to add 2 string and 1 table param to this function call?

[Josh]

The first argument of Invoke is the number of arguments. For OO functions, the table itself counts as an argument. So I believe you would just change that first 1 to 2, and the function argument would get passed. You can add as many arguments as you like.

 

You can get the function results back with Interpreter::PopInt() (or something like that...). Lua can actually return multiple values from a function!