NAME
        BuildSysRequest -- Build and display a system requester.

    SYNOPSIS
        ReqWindow = BuildSysRequest( window, bodytext, postext, negtext,
        D0                           A0      A1        A2       A3
                           IDCMPFlags, Width, Height )
                           D0          D1     D2

        struct window *buildsysrequest( struct window *, struct intuitext *,
                struct intuitext *, struct intuitext *, ulong, word, word );

    FUNCTION
        This procedure builds a system requester based on the supplied
        information.  If all goes well and the requester is constructed,
        this procedure returns a pointer to the window in which the requester
        appears.  That window will have its IDCMP initialized to reflect the
        flags found in the IDCMPFlags argument.  You may then wait on those
        ports to detect the user's response to your requester, which response
        may include either selecting one of the gadgets or causing some other
        event to be noticed by Intuition (like IDCMP_DISKINSERTED, for
        instance).  After the requester is satisfied, you should call the
        freesysrequest() procedure to remove the requester and free up
        any allocated memory.

        See the autodoc for sysreqhandler() for more information on the
        how to handle the IntuiMessages this window will receive.

        The requester used by this function has the NOISYREQ flag bit set,
        which means that the set of IDCMPFlags that may be used here
        include IDCMP_RAWKEY, IDCMP_MOUSEBUTTONS, and others.

        In release previous to V36, if the requester could not be built,
        this function would try to call displayalert() with the same
        information, with more or less favorable results.  In V36,
        the requesters themselves require less memory (SIMPLEREQ), but
        there is no alert attempt.

        The function may return TRUE (1) or FALSE if it cannot post
        the requester.  (V36 will always return FALSE, but be sure to
        test for TRUE in case somebody reinstates the fallback alert.)

        If the window argument you supply is equal to NULL, a new window will
        be created for you in the Workbench screen, or the default
        public screen, for V36.  If you want the requester
        created by this routine to be bound to a particular window (i.e.,
        to appear in the same screen as the window), you should
        not supply a window argument of NULL.

        New for V36: if you pass a NULL window pointer, the system requester
        will appear on the default public screen, which is not always
        the Workbench.

        The text arguments are used to construct the display.  Each is a
        pointer to an instance of the structure intuitext.

        The BodyText argument should be used to describe the nature of
        the requester.  As usual with intuitext data, you may link several
        lines of text together, and the text may be placed in various
        locations in the requester.  This intuitext pointer will be stored
        in the ReqText variable of the new requester.

        The PosText argument describes the text that you want associated
        with the user choice of "Yes,  TRUE,  Retry,  Good."  If the requester
        is successfully opened, this text will be rendered in a gadget in
        the lower-left of the requester, which gadget will have the
        GadgetID field set to TRUE.  If the requester cannot be opened and
        the displayalert() mechanism is used, this text will be rendered in
        the lower-left corner of the alert display with additional text
        specifying that the left mouse button will select this choice.  This
        pointer can be set to NULL, which specifies that there is no TRUE
        choice that can be made.

        The NegText argument describes the text that you want associated
        with the user choice of "No,  FALSE,  Cancel,  Bad."  If the requester
        is successfully opened, this text will be rendered in a gadget in
        the lower-right of the requester, which gadget will have the
        GadgetID field set to FALSE.  If the requester cannot be opened and
        the displayalert() mechanism is used, this text will be rendered in
        the lower-right corner of the alert display with additional text
        specifying that the right mouse button will select this choice.  This
        pointer cannot be set to NULL.  There must always be a way for the
        user to cancel this requester.

        The Positive and Negative Gadgets created by this routine have
        the following features:
          - GTYP_BOOLGADGET
          - GACT_RELVERIFY
          - GTYP_REQGADGET
          - GACT_TOGGLESELECT

        When defining the text for your gadgets, you may find it convenient
        to use the special constants used by Intuition for the construction
        of the gadgets.  These include defines like AUTODRAWMODE, AUTOLEFTEDGE,
        AUTOTOPEDGE and AUTOFRONTPEN.  You can find these in your local
        intuition.h (or intuition.i) file.

        These hard-coded constants are not very resolution or font
        sensitive, but V36 will override them to provide more modern
        layout.

        New for V36, linked lists of intuitext are not correctly supported
        for gadget labels.

        The width and height values describe the size of the requester.  All
        of your BodyText must fit within the width and height of your
        requester.  The gadgets will be created to conform to your sizes.

        VERY IMPORTANT NOTE:  for this release of this procedure, a new window
        is opened in the same screen as the one containing your window.
        Future alternatives may be provided as a function distinct from this
        one.

        NOTE: This function will pop the screen the requester and its
        window appears in to the front of all screens.  New for V36,
        if the user doesn't perform any other screen arrangement before
        finishing with the requester, a popped screen will be pushed
        back behind.

    INPUTS
        window = pointer to a window structure
        BodyText = pointer to an intuitext structure
        PosText = pointer to an intuitext structure
        NegText = pointer to an intuitext structure
        IDCMPFlags = the IDCMP flags you want used for the initialization of the
           IDCMP of the window containing this requester
        Width, Height = the size required to render your requester

        NOTE for V36: the width and height you pass are ignored, as
        are some of the parameters of your intuitext, so that intuition
        can make the Requesters real nice for the new look.

    RESULT
        If the requester was successfully created, the value
        returned by this procedure is a pointer to the window in which the
        requester is rendered.  If the requester could not be created,
        this routine might have called displayalert() before returning
        (it depends on the version) and will pass back TRUE if the user
        pressed the left mouse button and FALSE if the user pressed the
        right mouse button.   If the version of Intuition doesn't
        call displayalert(), or if it does, and there's not enough
        memory for the alert, the value of FALSE is returned.

    BUGS
        This procedure currently opens a window in the screen which
        contains the window which is passed as a parameter, or the
        default public screen, if that parameter is NULL.  Although
        not as originally envisioned, this will probably always be the
        behavior of this function.

        displayalert() is not called in version v36.

        It's almost impossible to make complete, correct account
        of different system fonts, window border dimensions, and
        screen resolution to get the layout of a System requester
        just right using this routine.  For V36, we recommend the
        automatic layout implemented in buildeasyrequestargs() and
        easyrequestargs().

    SEE ALSO
        freesysrequest(), displayalert(), modifyidcmp(), exec.library/wait(),
        request(), autorequest(), easyrequestargs(), buildeasyrequestargs()