|id||The id of the data structure to read from.|
Returns: Real or String
This function will only read the first value of the stack
(that which is "on top"). It will not pop the value, meaning
that it can still be read in the future by this function or the
num = ds_stack_top(control_stack);
The above code will read the value from the stack indexed in the variable "control_stack" and store the return value in the variable "num".