(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.
functionA callback function, which accepts one argument: data
dataThis data is been passed to the callback function
没有返回值。