NAME
        GT_ReplyIMsg -- reply a message obtained with gt_getimsg(). (v36)

   SYNOPSIS
        GT_ReplyIMsg(imsg)
                     A1

        VOID GT_ReplyIMsg(struct intuimessage *);

   FUNCTION
        Reply a modified intuimessage obtained with gt_getimsg().
        If you use gt_getimsg(), use this function where you would normally
        have used exec.library/replymsg().
        You may safely call this routine with a NULL pointer (nothing
        will be done).

   INPUTS
        imsg - a modified intuimessage obtained with gt_getimsg(), or null
               in which case this function does nothing

   NOTES
        When using GadTools, you MUST explicitly GT_ReplyIMsg()
        all messages you receive.  You cannot depend on closewindow()
        to handle messages you have not replied.

        Starting with V39, this function actually expects a pointer to an
        extintuimessage structure, but the prototype was not changed for
        source code compatibility with older software.

   SEE ALSO
        gt_getimsg()