教您如何在视图中加入标尺控件,仅需简单几步就能在您自己的工程中加入标尺功能,包括单文档及多文档,()

教您如何在视图中加入标尺控件,仅需简单几步就能在您自己的工程中加入标尺功能,包括单文档及多文档,(Teach you how to add a ruler control to a view, and it takes a few steps to add a ruler to your own project, including single and multiple documents,)