struct IControlPrefs
    {
        LONG  ic_Reserved[4];        /* System reserved            */
        UWORD ic_TimeOut;            /* Verify timeout             */
        WORD  ic_MetaDrag;           /* Meta drag mouse event      */
        ULONG ic_Flags;              /* IControl flags (see below) */
        UBYTE ic_WBtoFront;          /* CKey: WB to front          */
        UBYTE ic_FrontToBack;        /* CKey: front screen to back */
        UBYTE ic_ReqTrue;            /* CKey: Requester TRUE       */
        UBYTE ic_ReqFalse;           /* CKey: Requester FALSE      */
    };

The ic_Flags field can have the following values:

ICF_COERCE_COLORS
    This indicates that a displaymode with a matching number of colors
    has preference over a correct aspect ration when screen coercing
    takes place.

ICF_COERCE_LACE
    This indicates that chosing an interlaced display mode is allowed
    when coercing screens. Otherwise a non-interlaced display mode will
    be selected.

ICF_STRGAD_FILTER
    This indicates that control characters should be filtered out of
    string gadget user input.

ICF_MENUSNAP
    This indicates that an autoscroll screen should be snapped back to
    origin when the mouse menu-button is selected.

Note that the command key values in the last four fields of the
IControlPrefs structure are ANSI codes, not RAWKEY codes.

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