执行操作查询时使用“无光标”选项，因此不需要游标。
No cursor option is used when an action query is performed, and thus no cursor is necessary.
硬件游标采用时， 鼠标光标的像素并不实际存在于帧缓冲区因为硬件负责执行覆盖。
When a hardware cursor is employed, the pixels of the mouse cursor do not actually exist in the frame buffer because the hardware is responsible for performing the overlay.
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