Function RethinkVirtualSize 

pub unsafe fn RethinkVirtualSize(
    VirtualBase: *mut c_void,
    virt_obj: *mut Object,
    rootlayout: *mut Object,
    font: *mut TextFont,
    screen: *mut Screen,
    layoutlimits: *mut LayoutLimits,
) -> BOOL

libname: “virtual.gadget” (V40) (Kickstart 3.1)