Call this function to get the starting and ending character positions of the current selection (if any) in an edit control, using either the return value or the parameters.

调用此成员函数获取一个编辑控件中当前被选中部分(如果有)的起始和结束位置，可用参数也可用返回值。

youdao

Call this function to get the starting and ending character positions of the current selection (if any) in an edit control, using either the return value or the parameters.

调用此成员函数获取一个编辑控件中当前被选中部分(如果有)的起始和结束位置，可用参数也可用返回值。

youdao