using?System;
using?System.Collections.Generic;
using?System.ComponentModel;
using?System.Data;
using?System.Drawing;
using?System.Linq;
using?System.Text;
using?System.Threading.Tasks;
using?System.Windows.Forms;
using?System.Drawing.Drawing2D;

namespace?DrawUtil
{
????public?partial?class?FormMain?:?Form
????{
????????public?FormMain（）
????????{
????????????InitializeComponent（）;

????????????Setstyle（Controlstyles.DoubleBuffer?true）;
????????????Setstyle（Controlstyles.OptimizedDoubleBuffer?true）;
????????????Setstyle（Controlstyles.AllPaintingInWmPaint?true）;
????????????Setstyle（Controlstyles.UserPaint?true）;
????????????Setstyle（Controlstyles.SupportsTransparentBackColor?true）;???//模擬透明???????
????????????Setstyle（Controlstyles.Selectable?true）;?????????????????????//接收焦點
????????????Setstyle（Controlstyles.AllPaintingInWmPaint?true）;???????????//忽略?WM_ERASEBKGND?窗口消息減少閃爍

????????????this.Updatestyles（）;

????????????this.Padding?=?new?Padding（0?0?0?0）;

????????????this.Margin?=?new?Padding（0?0?0?0）;

????????}

????????#region?變量

????????LineClass?line;

????????bool?drawkine?=?false;

????????bool?isDragTo?=?false;

????????bool?isStretchTo?=?false;

????????Point?dragFromPoint;

????????Point?dragToPoint;

????????#endregion

????????void?m_PicDrawCtl_MouseDown（object?sender?MouseEventArgs?e）
????????{
????????????if?（e.Button?==?MouseButtons.Right）
????????????{
????????????????return;
????????????}

????????????try
????????????{
????????????????try
????????????????{
????????????????????//新建圖形
????????????????????{
????????????????????????if?（line?==?null）
????????????????????????{
????????????????????????????line?=?new?LineClass（）;

????????????????????????????if?（this.radioBtnLine.Checked）
????????????????????????????{
????????????????????????????????line.Drawstyle?=?Drawstyle.Line;
????????????????????????????}

????????????????????????????if?（this.radiobtnRect.Checked）
????????????????????????????{
????????????????????????????????line.Drawstyle?=?Drawstyle.Rect;
????????????????????????????}

????????????????????????????line.Start?=?e.Location;

????????????????????????????line.BackColor1?=?this.m_PicDrawCtl.BackColor;

????????????????????????????return;
????????????????????????}
????????????????????}

????????????????}
????????????????catch?{?}
????????????????try
????????????????{
????????????????????//拖拽圖形
????????????????????{
????????????????????????if?（this.line.Contains（e.Location））
????????????????????????{
????????????????????????????this.m_PicDrawCtl.Cursor?=?Cursors.SizeAll;

????????????????????????????this.isDragTo?=?true;

????????????????????????????this.dragFromPoint?=?e.Location;

????????????????????????????return;
????????????????????????}
????????????????????}

????????????????}
????????????????catch?{?}
????????????????try
????????????????{?
????????????????????//繼續繪制
????????????????????{

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----

?????文件???????5120??2017-09-30?10:10??DrawUtil\.vs\DrawUtil\v14\.suo

?????文件????????187??2017-09-29?13:48??DrawUtil\App.config

?????文件??????12800??2017-09-30?09:46??DrawUtil\bin\Debug\DrawUtil.exe

?????文件????????187??2017-09-29?13:48??DrawUtil\bin\Debug\DrawUtil.exe.config

?????文件??????30208??2017-09-30?09:46??DrawUtil\bin\Debug\DrawUtil.pdb

?????文件??????22984??2017-09-29?13:48??DrawUtil\bin\Debug\WindowsFormsApplication3.vshost.exe

?????文件????????187??2017-09-29?13:48??DrawUtil\bin\Debug\WindowsFormsApplication3.vshost.exe.config

?????文件????????490??2010-03-17?22:39??DrawUtil\bin\Debug\WindowsFormsApplication3.vshost.exe.manifest

?????文件??????13312??2017-09-30?10:09??DrawUtil\bin\Release\DrawUtil.exe

?????文件????????187??2017-09-29?13:48??DrawUtil\bin\Release\DrawUtil.exe.config

?????文件??????30208??2017-09-30?10:09??DrawUtil\bin\Release\DrawUtil.pdb

?????文件??????22696??2017-09-30?10:10??DrawUtil\bin\Release\DrawUtil.vshost.exe

?????文件????????187??2017-09-29?13:48??DrawUtil\bin\Release\DrawUtil.vshost.exe.config

?????文件????????490??2010-03-17?22:39??DrawUtil\bin\Release\DrawUtil.vshost.exe.manifest

?????文件???????3901??2017-09-29?14:18??DrawUtil\DrawUtil.csproj

?????文件??????11534??2017-09-30?10:09??DrawUtil\FormMain.cs

?????文件???????5062??2017-09-30?10:09??DrawUtil\FormMain.Designer.cs

?????文件???????5817??2017-09-30?10:09??DrawUtil\FormMain.resx

?????文件????????523??2017-09-29?14:18??DrawUtil\Program.cs

?????文件???????1354??2017-09-29?14:18??DrawUtil\Properties\AssemblyInfo.cs

?????文件???????2856??2017-09-29?14:18??DrawUtil\Properties\Resources.Designer.cs

?????文件???????5612??2017-09-29?13:48??DrawUtil\Properties\Resources.resx

?????文件???????1108??2017-09-29?14:18??DrawUtil\Properties\Settings.Designer.cs

?????文件????????249??2017-09-29?13:48??DrawUtil\Properties\Settings.settings

?????目錄??????????0??2017-09-30?09:03??DrawUtil\.vs\DrawUtil\v14

?????目錄??????????0??2017-09-30?08:54??DrawUtil\.vs\DrawUtil

?????目錄??????????0??2017-09-30?09:46??DrawUtil\bin\Debug

?????目錄??????????0??2017-09-30?10:09??DrawUtil\bin\Release

????...D.H.?????????0??2017-09-30?08:54??DrawUtil\.vs

?????目錄??????????0??2017-09-29?17:56??DrawUtil\bin

............此處省略5個文件信息