C# 鼠标缩放平移图像示例源码

using System;using System.Collections.Generic;using System.ComponentModel;using System.Data;using System.Drawing;using System.Linq;using System.Text;using System.Windows.Forms;namespace 鼠标缩放平移图像{ public partial class Form1 : Form { public Form1() { InitializeComponent(); } /// <summary> /// 放大平移缩小图像操作类 /// </summary> private MouseCtrl _mouseCtrl; private void Form1_Load(object sender, EventArgs e) { _mouseCtrl = new MouseCtrl(panel1, Point.Empty, panel1.ClientSize); _mouseCtrl.StartTranslate = new EventHandler(_mouseCtrl_StartTranslate); _mouseCtrl.StopTranslate = new EventHandler(_mouseCtrl_StopTranslate); _mouseCtrl.BackColor = Color.Black; _mouseCtrl.Refresh(); } /// <summary> /// 停止平移事件 /// </summary> /// <param name="sender"></param> /// <param name="e"></param> private void _mouseCtrl_StopTranslate(object sender, EventArgs e) { this.Cursor = Cursors.Default; //恢复光标样式 } /// <summary> /// 开始平移事件 /// </summary> /// <param name="sender"></param> /// <param name="e"></param> private void _mouseCtrl_StartTranslate(object sender, EventArgs e) { this.Cursor = Cursors.Hand; //变换光标样式 } private void btnOpenImage_Click(object sender, EventArgs e) { if (openFileDialog1.ShowDialog() == System.Windows.Forms.DialogResult.OK) { try { using (Bitmap img = new Bitmap(openFileDialog1.FileName)) { _mouseCtrl.SetBackImage(img); } _mouseCtrl.Refresh(); } catch (Exception ex) { MessageBox.Show("打开图像失败，失败原因：" ex); } } } }}