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）