HELPLIB.HLB  —  CRTL  sigaction  Arguments
 sig

    The signal for which the action is to be taken.

 action

    A pointer to a sigaction structure that describes the action to
    take when you receive the signal specified by the sig argument.

 o_action

    A pointer to a sigaction structure. When the sigaction function
    returns from a call, the action previously attached to the
    specified signal is stored in this structure.
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