timeout=(delay)
Class Public methods
Sets block and non-blocking reads for the window.
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If delay is negative, blocking read is used (i.e., waits indefinitely for input).
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If delay is zero, then non-blocking read is used (i.e., read returns ERR if no input is waiting).
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If delay is positive, then read blocks for delay milliseconds, and returns ERR if there is still no input.
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