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<a id="cb_post_title_url" class="postTitle2" href="./C# GDI+绘制矩形圆角 - jasen.kin - 博客园_files/C# GDI+绘制矩形圆角 - jasen.kin - 博客园.html">C# GDI+绘制矩形圆角</a>
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<div id="cnblogs_post_body"><span style="font-size: 18pt; color: rgb(255,102,0)">一、前言</span>
<p>本文主要介绍C# GDI+如何绘制矩行的圆角，其中涉及到如何使用位操作来处理组合的技巧。GDI+的本质在于，它能够替代开发人员实现与显示器及其它外部设备的交互。对于控件美化而言，需要达到自己期望的效果，GDI+必不可少。绘制后的圆角效果图如下：</p>
<p><img style="border-left-color: rgb(0,0,255); border-bottom-color: rgb(0,0,255); border-top-color: rgb(0,0,255); border-right-color: rgb(0,0,255)" height="452" alt="" src="./C# GDI+绘制矩形圆角 - jasen.kin - 博客园_files/DrawRound.jpg" width="836" border="2"></p>
<p> </p>
<p><span style="font-size: 18pt; color: rgb(255,102,0)">二、圆角枚举与相应组合处理设计</span></p>
<p> 对于矩行而言，圆角分为左上角、右上角、左下角和右下角。组合情况就分为无圆角、一个圆角、二个圆角、三个圆角以及四个圆角。枚举需要满足该组合情况，没必要在枚举中将 全部组合列出，只需要通过位操作就能计算出属于哪种组合。枚举类设计如下：</p>
<div class="cnblogs_code"><div class="cnblogs_code_toolbar"><span class="cnblogs_code_copy"><a href="javascript:void(0);" onclick="copyCnblogsCode(this)" title="复制代码"><img src="./C# GDI+绘制矩形圆角 - jasen.kin - 博客园_files/copycode.gif" alt="复制代码"></a></span></div>
<div><span style="color: rgb(0,128,128)"> 1</span> [Flags]<br><span style="color: rgb(0,128,128)"> 2</span> <span style="color: rgb(0,0,255)">public</span> <span style="color: rgb(0,0,255)">enum</span> RoundStyle<br><span style="color: rgb(0,128,128)"> 3</span> { <br><span style="color: rgb(0,128,128)"> 4</span> None = <span style="color: rgb(128,0,128)">0</span>, <br><span style="color: rgb(0,128,128)"> 5</span> TopLeft = <span style="color: rgb(128,0,128)">1</span>,<br><span style="color: rgb(0,128,128)"> 6</span> TopRight = <span style="color: rgb(128,0,128)">2</span>,<br><span style="color: rgb(0,128,128)"> 7</span> BottomLeft = <span style="color: rgb(128,0,128)">4</span>,<br><span style="color: rgb(0,128,128)"> 8</span> BottomRight = <span style="color: rgb(128,0,128)">8</span> ,<br><span style="color: rgb(0,128,128)"> 9</span> All = TopLeft | TopRight | BottomLeft | BottomRight<br><span style="color: rgb(0,128,128)">10</span> }</div><div class="cnblogs_code_toolbar"><span class="cnblogs_code_copy"><a href="javascript:void(0);" onclick="copyCnblogsCode(this)" title="复制代码"><img src="./C# GDI+绘制矩形圆角 - jasen.kin - 博客园_files/copycode.gif" alt="复制代码"></a></span></div></div>
<p> </p>
<div>矩行的圆角所有组合情况如下：</div>
<div>RoundStyle.None </div>
<div>RoundStyle.All </div>
<div>RoundStyle.BottomLeft</div>
<div>RoundStyle.BottomRight</div>
<div>RoundStyle.TopLeft</div>
<div>
<p>RoundStyle.TopRight</p>
<p>RoundStyle.BottomRight | RoundStyle.BottomLeft<br>RoundStyle.BottomRight | RoundStyle.TopRight<br>RoundStyle.TopRight | RoundStyle.TopLeft<br>RoundStyle.BottomLeft | RoundStyle.TopLeft<br>RoundStyle.BottomRight | RoundStyle.TopLeft<br>RoundStyle.TopRight | RoundStyle.BottomLeft</p>
<p>RoundStyle.BottomLeft | RoundStyle.BottomRight | RoundStyle.TopLeft<br>RoundStyle.BottomLeft | RoundStyle.BottomRight | RoundStyle.TopRight<br>RoundStyle.BottomLeft | RoundStyle.TopLeft | RoundStyle.TopRight<br>RoundStyle.BottomRight | RoundStyle.TopRight | RoundStyle.TopLeft<br></p>
<p>对于每一种组合，必须提供相应的操作来执行路径计算，这主要是因为GraphicsPath的路径是有顺序的。因此所�
C# GDI+绘制矩形圆角
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Yian~Biu2022-01-04骗人的呀 大家不要被骗了呀！！没有源码啊
迹象Kimizhou_blog2019-02-11不行啊，里面就是一个连接的静态html，而且还不能运行，还报错。要我打开
