(PECL newt >= 0.1)
newt_set_suspend_callback — Set a callback function which gets invoked when user presses the suspend key
Set a callback function which gets invoked when user presses the suspend key (normally ^Z). If no suspend callback is registered, the suspend keystroke is ignored.
function
A callback function, which accepts one argument: data
data
This data is been passed to the callback function
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