UCGUI光标设置

显示光标的一般顺序：
1，GUI_CURSOR_Show();
显示光标
2，void GUI_CURSOR_Select(const
GUI_CURSOR * pCursor);
选择光标风格

GUI_CursorArrowS Small
arrow.
GUI_CursorArrowM Medium
arrow.
GUI_CursorArrowL Large
arrow.
GUI_CursorArrowSI Small
inverted arrow.
GUI_CursorArrowMI Medium
inverted arrow.
GUI_CursorArrowLI Large
inverted arrow.
GUI_CursorCrossS Small
cross.
GUI_CursorCrossM Medium
cross.
GUI_CursorCrossL Large
cross.
GUI_CursorCrossSI Small
inverted cross.
GUI_CursorCrossMI Medium
inverted cross.
GUI_CursorCrossLI Large
inverted cross.

3，void
GUI_CURSOR_SetPosition(int x, int y);
设置光标位置（光标的移动可改动x，y来实现）
4，GUI_CURSOR_Hide()；
隐藏光标（可选）