Non blocking INPUT?

Mickster

Been a while since I used FlexBasic but I thought we had a way of checking for a character waiting in the keyboard buffer before grabbing it?

I use lots of Basics so maybe I'm confused.

Craig

ersmith

@Mickster : We don't have a non-blocking INPUT, or really anything like it at the high level (i.e. which can work with arbitrary files).

For just the keyboard, there is a low level (undocumented) function to read with a timeout:

  ch = _rxraw(ms_timeout)

If you give a timeout of zero (so _rxraw(0)) then it will return immediately with -1 if there is no key available, otherwise it returns the key.

Mickster

@ersmith
Hi Eric,

In my case, a _rxraw(0) blocks but _rxraw(-1) works beautifully. Many thanks

Craig