Suspend the user application program, waiting for bar code input.
This particular WAIT statement waits for port 0 bit 1 to go to 1, indicating that there is data in the bar code buffer. Specifying other bits as well terminates the wait, for example, on key input or when the specified timeout interval has elapsed.
open "bar:" as #1 code "A" wait 0,&h02
open "bar:" as #1 code "A" wait 0,&h03
open "bar:" as #1 code "A" timea = 30 'set timeout interval to 3 seconds wait 0,&h13
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