|request| evaluable Max window messages

there was a similar thread recently, now i came across the same thing. we need an external that spits out the lines as sent to the max window.
so useful. all this important feedback about what's going on needs to be evaluable for the patcher itself. for examle
How do i inform the user the file he just tried to load into a buffer exceeds the available memory? like so often the only feedback is printed to the max window. you know for yourself this would raise the possibillities immensely. O.