Function igFindBestWindowPosForPopupEx

pub unsafe extern "C" fn igFindBestWindowPosForPopupEx(
    pOut: *mut ImVec2,
    ref_pos: ImVec2,
    size: ImVec2,
    last_dir: *mut i32,
    r_outer: ImRect,
    r_avoid: ImRect,
    policy: u32,
)