using?System;
using?System.Drawing;
using?System.Windows.Forms;

namespace?WFA畫圖
{
????public?partial?class?Form1?:?Form
????{
????????#region?成員變量
????????Point?m_p1?m_p2;
????????bool?m_flgKeuDowm?=?false;
????????Bitmap?m_mapStart;
????????Bitmap?m_mapEnd;
????????Bitmap?m_mapInit;
????????Graphics?m_graphics;
????????#endregion

????????public?Form1（）
????????{
????????????InitializeComponent（）;
????????????m_graphics?=?pictureBox1.CreateGraphics（）;
????????????
????????????//?最初的背景圖存起來(lái)，清除繪制圖形時(shí)用
????????????m_mapInit?=?（Bitmap）pictureBox1.BackgroundImage;
????????}

????????#region?鼠標(biāo)事件
????????///?

????????///?鼠標(biāo)按下
????????///?

????????///?
????????///?
????????private?void?pictureBox1_MouseDown（object?sender?MouseEventArgs?e）
????????{
????????????m_flgKeuDowm?=?true;
????????????_initPoint（e）;
????????????
????????}
????????
????????///?

????????///?鼠標(biāo)移動(dòng)
????????///?

????????///?
????????///?
????????private?void?pictureBox1_MouseMove（object?sender?MouseEventArgs?e）
????????{
????????????if?（!m_flgKeuDowm）
????????????{
????????????????return;
????????????}
????????????else
????????????{
????????????????m_p2?=?new?Point（e.X?e.Y）;
????????????}

????????????int?width?=?Math.Abs（e.X?-?m_p1.X）;
????????????int?height?=?Math.Abs（e.Y?-?m_p1.Y）;


????????????_draw（）;
????????}

????????///?

????????///?鼠標(biāo)抬起
????????///?

????????///?
????????///?
????????private?void?pictureBox1_MouseUp（object?sender?MouseEventArgs?e）
????????{
????????????m_flgKeuDowm?=?false;

????????????//?最終的圖片設(shè)為背景圖
????????????pictureBox1.BackgroundImage?=?m_mapEnd;

????????????//?起止點(diǎn)初始化
????????????_initPoint（e）;
????????}
????????#endregion

????????private?void?_draw（）{

????????????//?每次的【終止圖】都是取自【起始圖】
????????????m_mapEnd?=?（Bitmap）m_mapStart.Clone（）;
????????????Graphics?g?=?Graphics.FromImage（m_mapEnd）;
????????????Pen?pen?=?new?Pen（Color.Red3）;
????????????if?（rdoRect.Checked）
????????????{
????????????????Point?p1p2;
????????????????_swapPoint（out?p1out?p2?）;
????????????????int?width?=?Math.Abs（p2.X?-?p1.X）;
????????????????int?height?=?Math.Abs（p2.Y?-?p1.Y）;
????????????????g.DrawRectangle（pen?p1.X?p1.Y?width?height）;
????????????}else?if（rdoLine.Checked）{
????????????????//?畫直線不用轉(zhuǎn)換點(diǎn)坐標(biāo)，直接用成員變量的Point
????????????????g.DrawLine（pen?m_p1?m_p2）;
????????????}

????????????m_graphics.DrawImage（m_mapEnd?new?Point（0?0））;
????????}

????????private?void?_initPoint（MouseEventArgs?e）
????????{
????????????m_p1?=?new?Point（e.X?e.Y）;
????????????m_p2?=?m_p1;

????????????if?（pictureBox1.BackgroundImage?!=?null）
????????????{
????????????????m_mapStart?=?（Bitmap）pictureBox1.BackgroundImage;
????????????}
????????}

????????private?void?

?屬性????????????大小?????日期????時(shí)間???名稱
-----------?---------??----------?-----??----

?????文件????????917??2018-06-16?20:01??WFA畫圖.sln

????..A..H.?????26112??2018-06-16?23:32??WFA畫圖.v11.suo

?????文件????????187??2018-06-16?20:01??WFA畫圖\App.config

?????文件?????297984??2018-06-17?00:03??WFA畫圖\bin\Debug\WFA畫圖.exe

?????文件????????187??2018-06-16?20:01??WFA畫圖\bin\Debug\WFA畫圖.exe.config

?????文件??????30208??2018-06-17?00:03??WFA畫圖\bin\Debug\WFA畫圖.pdb

?????文件??????22984??2018-06-17?00:04??WFA畫圖\bin\Debug\WFA畫圖.vshost.exe

?????文件????????187??2018-06-16?20:01??WFA畫圖\bin\Debug\WFA畫圖.vshost.exe.config

?????文件????????490??2016-07-16?19:44??WFA畫圖\bin\Debug\WFA畫圖.vshost.exe.manifest

?????文件???????4491??2018-06-17?00:03??WFA畫圖\Form1.cs

?????文件???????5352??2018-06-17?00:03??WFA畫圖\Form1.Designer.cs

?????文件???????5817??2018-06-17?00:03??WFA畫圖\Form1.resx

?????文件???????7348??2018-06-16?23:07??WFA畫圖\obj\Debug\DesignTimeResolveAssemblyReferencesInput.cache

?????文件??????????0??2018-06-16?20:01??WFA畫圖\obj\Debug\TemporaryGeneratedFile_036C0B5B-1481-4323-8D20-8F5ADCB23D92.cs

?????文件??????????0??2018-06-16?20:01??WFA畫圖\obj\Debug\TemporaryGeneratedFile_5937a670-0e60-4077-877b-f7221da3dda1.cs

?????文件??????????0??2018-06-16?20:01??WFA畫圖\obj\Debug\TemporaryGeneratedFile_E7A71F73-0F8D-4B9B-B56E-8E70B10BC5D3.cs

?????文件???????5120??2018-06-16?23:07??WFA畫圖\obj\Debug\TempPE\Properties.Resources.Designer.cs.dll

?????文件???????1059??2018-06-17?00:04??WFA畫圖\obj\Debug\WFA畫圖.csproj.FileListAbsolute.txt

?????文件???????1061??2018-06-17?00:03??WFA畫圖\obj\Debug\WFA畫圖.csproj.GenerateResource.Cache

?????文件???????2209??2018-06-16?22:56??WFA畫圖\obj\Debug\WFA畫圖.csprojResolveAssemblyReference.cache

?????文件?????297984??2018-06-17?00:03??WFA畫圖\obj\Debug\WFA畫圖.exe

?????文件????????180??2018-06-17?00:03??WFA畫圖\obj\Debug\WFA畫圖.Form1.resources

?????文件??????30208??2018-06-17?00:03??WFA畫圖\obj\Debug\WFA畫圖.pdb

?????文件?????286159??2018-06-16?23:08??WFA畫圖\obj\Debug\WFA畫圖.Properties.Resources.resources

?????文件????????521??2018-06-16?20:01??WFA畫圖\Program.cs

?????文件???????1338??2018-06-16?20:01??WFA畫圖\Properties\AssemblyInfo.cs

?????文件???????3610??2018-06-16?23:07??WFA畫圖\Properties\Resources.Designer.cs

?????文件???????6453??2018-06-16?23:07??WFA畫圖\Properties\Resources.resx

?????文件???????1096??2018-06-16?20:01??WFA畫圖\Properties\Settings.Designer.cs

?????文件????????249??2018-06-16?20:01??WFA畫圖\Properties\Settings.settings

............此處省略14個(gè)文件信息