说明：  首先，我想说这并不是我的idea，准确的说是用一个不同的方法，并用c#实现一个c++实例。如果你想看看原来的文章，请点击原文（感谢Igor Tolmachev的奇妙想法）。本文，改变了原文的工作原理（从多个对话框到单个），并添加了一些新的特征(旋转，缩放)...
(First of all, I want to say it was not my idea, and accurate is a different approach, and c# Realize a c++ Examples. If you would like to see the original article, please click on the original (thanks to the wonderful ideas Igor Tolmachev). This article has changed the working principle of the original (from a number of dialog to a single), and add some new features (rotate, zoom) ...)