怎么可以画像windows的mspaint曲线然后我可以选择一些行来擦除？ [英] How could draw curves like windows' mspaint and then I could select some line to erase?

问题描述

正如标题所说，该程序在win32平台上运行;

就像powerpoint文件演示一样，教师可以使用鼠标绘图，如果（图形）行没用，可以选择它们并删除;

任何人都可以帮我分析技术点或API使用？谢谢！



我尝试了什么：



我没有想法...很抱歉..寻求解决方案，再次感谢！

as the title says, the program runs on the win32 platform;
like the powerpoint file demonstration,the teacher could use mouse drawing,if the (graphics)lines are useless,they could be selected and deleted;
anyone could help me analyse the tech-point or API using? thank you !

What I have tried:

I have no ideas ...so sorry..asking for solution,thanks once more!

推荐答案

您可以使用 Windows GDI [ ^ ]绘制线条，曲线等。参见Win32编程 - 功能X [ ^ ]一些有用的教程。

You can use Windows GDI[^] to draw lines, curves etc. See Win32 Programming - FunctionX[^] for some useful tutorials.

你可以把图表编辑器 [ ^ ]作为示例并基于扩展其功能提供的基类



或DrawCLI示例（在Visual Studio Samples Pack中）可以作为启动项目的另一个例子



但是这两个项目都基于MFC，如果使用MFC是个问题，那么你可以轻松地将图编辑器移植到Win32



对于不规则形状的命中测试，我建议使用GDI +代替GDI

You can take Diagram Editor[^] as an example and extend its functionality based on the provided base classes

Or DrawCLI sample (in Visual Studio Samples Pack) can be another example as a startup project

But these two projects are based on MFC ,if use of MFC is a problem then you can easily port Diagram Editor to Win32

For hit testing on irregular shapes i would recommend to use of GDI+ instead of GDI

这篇关于怎么可以画像windows的mspaint曲线然后我可以选择一些行来擦除？的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！