C#中添加鼠标滚轮事件

C#代码

1. this.MouseWheel += new System.Windows.Forms.MouseEventHandler(this.panel1_MouseWheel);

C#代码

1. #region 进入窗体时加载

2.

3. public FormAlarmInfoQuery()

4. {

5. InitializeComponent();

6. pictureBox1.ImageLocation = "f:""1.jpg";

7.

8. this.MouseWheel += new System.Windows.Forms.MouseEventHandler(this.panel1_MouseWheel);

9. //判断是否已安装带滚轮的鼠标

10. //SystemInformation.MouseWheelPresent.ToString();

11. //获取鼠标滚轮在滚动时所获得的行数

12. //SystemInformation.MouseWheelScrollLines.ToString();

13. //判断该操作系统是否支持滚轮鼠标

14. //SystemInformation.NativeMouseWheelSupport.ToString();

15. }

16.

17. #endregion

InitializeComponent();

pictureBox1.ImageLocation = "f:""1.jpg";

this.MouseWheel += new System.Windows.Forms.MouseEventHandler(this.panel1_MouseWheel);

//

//SystemInformation.MouseWheelPresent.ToString();

//

//SystemInformation.MouseWheelScrollLines.ToString();

//

//SystemInformation.NativeMouseWheelSupport.ToString();

然后写一个鼠标事件方法

C#代码

1. private void panel1_MouseWheel(object sender, System.Windows.Forms.MouseEventArgs e)

2. {

3. MessageBox.Show("滚动事件已被捕捉");

4. System.Drawing.Size t = pictureBox1.Size;

5. t.Width += e.Delta;

6. t.Height += e.Delta;

7. pictureBox1.Width = t.Width;

8. pictureBox1.Height = t.Height;

9. }

MessageBox.Show("

System.Drawing.Size t = pictureBox1.Size;

t.Width += e.Delta;

t.Height += e.Delta;

pictureBox1.Width = t.Width;

pictureBox1.Height = t.Height;

如果输出了“滚动事件已被捕捉”，那么鼠标滚轮事件就成功被捕捉了，就可以在在里边写让鼠标滚轮处理的事件了