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Send SIGINT on Ctrl+C instead of immediate exit #93
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For a process to have a change for a graceful shutdown a SIGINT signal is sent when Ctrl+C is pressed instead of exiting the process immediately. Blessed already have a registered SIGINT handler which calls `process.exit(0)` if no other handlers exist (https://github.com/chjj/blessed/blob/master/lib/widgets/screen.js#L232)
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For a process to have a change for a graceful shutdown a SIGINT signal is sent when Ctrl+C is pressed instead of exiting the process immediately.
Blessed already have a registered SIGINT handler which calls
process.exit(0)if no other handlers exist (https://github.com/chjj/blessed/blob/master/lib/widgets/screen.js#L232)