绘图路径(painter path)在qt中使用QPainterPath类表示，它提供了绘图操作的容器，可以使图形能够复用。-Mapping the path (painter path) at qt use QPainterPath category that it provides a mapping operation of container, so that graphics can be reused.

这个是使用Qt里面的QPainterPath类模仿QQ截图，已完成的功能有截图完成到剪贴板，保存图片等-This is the use of QPainterPath inside the Qt class imitation QQ screenshot, has completed the function to complete the clipboard to the clipboard, save the picture and so on.