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資源簡介

C#實現在picturebox內畫矩形,并將矩形框內選中的局部圖片放大顯示 源碼

資源截圖

代碼片段和文件信息

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

namespace?PicZoom
{
????public?partial?class?Form1?:?Form
????{
????????public?Form1()
????????{
????????????InitializeComponent();
????????}

????????private?Point?m_ptStart?=?new?Point(0?0);
????????private?Point?m_ptEnd?=?new?Point(0?0);
????????private?bool?m_bMouseDown?=?false;
????????private?float?xRate?yRate?realX1?realY1?realX2?realY2;

????????private?void?pictureBox1_MouseDown(object?sender?MouseEventArgs?e)
????????{
????????????if?(e.Button?!=?MouseButtons.Left)
????????????{
????????????????return;
????????????}

????????????m_ptEnd?=?new?Point(e.X?e.Y);
????????????this.pictureBox1.Refresh();
????????????label2.Text?=?“X?=?“?+?e.X.ToString()?+?“?Y?=?“?+?e.Y.ToString();
????????????label3.Text?=?“X?=?“?+?pictureBox1.Location.X.ToString()?+?“Y?=?“?+?pictureBox1.Location.Y.ToString();

????????????realX1?=?e.X?*?xRate;
????????????realY1?=?e.Y?*?yRate;

????????????label4.Text?=?“X?=?“?+?realX1.ToString()?+?“Y?=?“?+?realY1.ToString();
????????????if?(!m_bMouseDown)
????????????{
????????????????m_ptStart?=?new?Point(e.X?e.Y);
????????????????m_ptEnd?=?new?Point(e.X?e.Y);
????????????}
????????????m_bMouseDown?=?!m_bMouseDown;?
????????}

????????private?void?pictureBox1_Paint(object?sender?PaintEventArgs?e)
????????{
????????????if?(m_ptEnd.X?-?m_ptStart.X?????????????{
????????????????return;
????????????}

????????????e.Graphics.DrawRectangle(System.Drawing.Pens.Blue?m_ptStart.X?m_ptStart.Y?m_ptEnd.X?-?m_ptStart.X?m_ptEnd.Y?-?m_ptStart.Y);

????????}

????????private?void?pictureBox1_MouseUp(object?sender?MouseEventArgs?e)
????????{
????????????if?(e.Button?!=?MouseButtons.Left)
????????????{
????????????????return;
????????????}

????????????if?(m_ptStart.X?>=?0?&&?m_ptEnd.X?>=?0
?????????????????&&?m_ptStart.Y?>=?0?&&?m_ptEnd.Y?>=?0
?????????????????&&?m_ptStart.X?<=?254?&&?m_ptEnd.X?<=?254
?????????????????&&?m_ptStart.Y?<=?163?&&?m_ptEnd.Y?<=?163)
????????????{
????????????????m_ptEnd?=?new?Point(e.X?e.Y);
????????????????m_bMouseDown?=?!m_bMouseDown;
????????????????this.pictureBox1.Refresh();
????????????}
????????????else
????????????{
????????????????m_ptEnd?=?new?Point(e.X?e.Y);
????????????????m_ptEnd?=?m_ptStart;
????????????????m_bMouseDown?=?!m_bMouseDown;
????????????????this.pictureBox1.Refresh();
????????????}

????????????realX2?=?e.X?*?xRate;
????????????realY2?=?e.Y?*?yRate;

????????????label5.Text?=?“X?=?“?+?realX2.ToString()?+?“Y?=?“?+?realY2.ToString();


????????????pictureBox2.Image?=?Crop((Bitmap)pictureBox1.Image);
????????????GC.Collect();
????????}

????????private?void?pictureBox1_MouseMove(object?sender?MouseEventArgs?e)
????????{
????????????if?(e.Button?!=?MouseButtons.Left)
????????????

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

?????文件?????147456??2009-06-12?15:40??PicZoom\PicZoom\bin\Debug\PicZoom.exe

?????文件??????26112??2009-06-12?15:40??PicZoom\PicZoom\bin\Debug\PicZoom.pdb

?????文件???????5632??2005-11-11?22:25??PicZoom\PicZoom\bin\Debug\PicZoom.vshost.exe

?????文件???????3878??2009-06-12?15:40??PicZoom\PicZoom\Form1.cs

?????文件???????5622??2009-06-12?15:40??PicZoom\PicZoom\Form1.Designer.cs

?????文件???????5814??2009-06-12?15:40??PicZoom\PicZoom\Form1.resx

?????文件????????924??2009-06-12?15:40??PicZoom\PicZoom\obj\Debug\PicZoom.csproj.GenerateResource.Cache

?????文件?????147456??2009-06-12?15:40??PicZoom\PicZoom\obj\Debug\PicZoom.exe

?????文件????????180??2009-06-12?15:40??PicZoom\PicZoom\obj\Debug\PicZoom.Form1.resources

?????文件??????26112??2009-06-12?15:40??PicZoom\PicZoom\obj\Debug\PicZoom.pdb

?????文件?????125700??2009-06-12?15:37??PicZoom\PicZoom\obj\Debug\PicZoom.Properties.Resources.resources

?????文件???????5120??2009-06-12?15:37??PicZoom\PicZoom\obj\Debug\TempPE\Properties.Resources.Designer.cs.dll

?????文件????????268??2009-06-12?15:40??PicZoom\PicZoom\obj\PicZoom.csproj.FileList.txt

?????文件???????3336??2009-06-12?15:37??PicZoom\PicZoom\PicZoom.csproj

?????文件????????466??2009-06-12?15:28??PicZoom\PicZoom\Program.cs

?????文件???????1166??2009-06-12?15:28??PicZoom\PicZoom\Properties\AssemblyInfo.cs

?????文件???????3343??2009-06-12?15:37??PicZoom\PicZoom\Properties\Resources.Designer.cs

?????文件???????6445??2009-06-12?15:37??PicZoom\PicZoom\Properties\Resources.resx

?????文件???????1091??2009-06-12?15:28??PicZoom\PicZoom\Properties\Settings.Designer.cs

?????文件????????249??2009-06-12?15:28??PicZoom\PicZoom\Properties\Settings.settings

?????文件??????51415??2009-06-12?15:37??PicZoom\PicZoom\Resources\chinamap.jpg

?????文件??????71189??2004-08-17?20:00??PicZoom\PicZoom\Resources\Sunset.jpg

?????文件????????910??2009-06-12?15:28??PicZoom\PicZoom.sln

????..A..H.?????11776??2009-06-12?15:40??PicZoom\PicZoom.suo

?????文件????????132??2009-06-12?15:43??PicZoom\Readme.txt

?????目錄??????????0??2009-06-12?15:37??PicZoom\PicZoom\obj\Debug\TempPE

?????目錄??????????0??2009-06-12?15:33??PicZoom\PicZoom\bin\Debug

?????目錄??????????0??2009-06-12?15:40??PicZoom\PicZoom\obj\Debug

?????目錄??????????0??2009-06-12?15:36??PicZoom\PicZoom\bin

?????目錄??????????0??2009-06-12?15:33??PicZoom\PicZoom\obj

............此處省略7個文件信息

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