using?System;
using?System.Collections.Generic;
using?System.ComponentModel;
using?System.Data;
using?System.Drawing;
using?System.Text;
using?System.Windows.Forms;

using?System.Drawing.Drawing2D;
namespace?Ex12_17
{
????public?partial?class?Form1?:?Form
????{
????????public?Form1（）
????????{
????????????InitializeComponent（）;
????????}

????????private?void?Form1_Load（object?sender?EventArgs?e）
????????{
????????????drowWindows（）;
????????}

????????private?void?drowWindows（）
????????{
????????????GraphicsPath?gp?=?new?GraphicsPath（）;
????????????Rectangle?rect?=?new?Rectangle（new?Point（0?0）?new?Size（this.Width?this.Height））;
????????????gp.AddEllipse（rect）;
????????????this.Region?=?new?Region（gp）;

????????????GraphicsPath?gpl?=?new?GraphicsPath（）;
??

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2010-04-06?13:10??Ex12_17\
?????文件?????????910??2007-07-11?11:32??Ex12_17.sln
?????文件???????16384??2007-07-11?11:32??Ex12_17.suo
?????目錄???????????0??2010-04-06?13:10??Ex12_17\bin\
?????目錄???????????0??2010-04-06?13:10??Ex12_17\bin\Debug\
?????文件???????20480??2007-07-11?11:32??Ex12_17\bin\Debug\Ex12_17.exe
?????文件???????22016??2007-07-11?11:32??Ex12_17\bin\Debug\Ex12_17.pdb
?????文件????????5632??2007-07-11?11:32??Ex12_17\bin\Debug\Ex12_17.vshost.exe
?????文件????????3221??2007-07-11?11:32??Ex12_17\Ex12_17.csproj
?????文件????????2377??2007-07-11?11:32??Ex12_17\Form1.cs
?????文件????????4431??2007-07-11?11:32??Ex12_17\Form1.Designer.cs
?????文件????????5814??2007-07-11?11:32??Ex12_17\Form1.resx
?????目錄???????????0??2010-04-06?13:10??Ex12_17\obj\
?????目錄???????????0??2010-04-06?13:10??Ex12_17\obj\Debug\
?????文件?????????842??2007-07-11?11:32??Ex12_17\obj\Debug\Ex12_17.csproj.GenerateResource.Cache
?????文件???????20480??2007-07-11?11:32??Ex12_17\obj\Debug\Ex12_17.exe
?????文件?????????180??2007-07-11?11:32??Ex12_17\obj\Debug\Ex12_17.Form1.resources
?????文件???????22016??2007-07-11?11:32??Ex12_17\obj\Debug\Ex12_17.pdb
?????文件?????????180??2007-07-11?11:32??Ex12_17\obj\Debug\Ex12_17.Properties.Resources.resources
?????目錄???????????0??2010-04-06?13:10??Ex12_17\obj\Debug\Refactor\
?????目錄???????????0??2010-04-06?13:10??Ex12_17\obj\Debug\TempPE\
?????文件?????????268??2007-07-11?11:32??Ex12_17\obj\Ex12_17.csproj.FileList.txt
?????文件?????????466??2007-07-11?11:32??Ex12_17\Program.cs
?????目錄???????????0??2010-04-06?13:10??Ex12_17\Properties\
?????文件????????1162??2007-07-11?11:32??Ex12_17\Properties\AssemblyInfo.cs
?????文件????????2868??2007-07-11?11:32??Ex12_17\Properties\Resources.Designer.cs
?????文件????????5612??2007-07-11?11:32??Ex12_17\Properties\Resources.resx
?????文件????????1090??2007-07-11?11:32??Ex12_17\Properties\Settings.Designer.cs
?????文件?????????249??2007-07-11?11:32??Ex12_17\Properties\Settings.settings