#region 进入窗体时加载
public FormAlarmInfoQuery()
{
InitializeComponent();
pictureBox1.ImageLocation = "f:\\1.jpg";
this.MouseWheel += new System.Windows.Forms.MouseEventHandler(this.panel1_MouseWheel);
//判断是否已安装带滚轮的鼠标
//SystemInformation.MouseWheelPresent.ToString();
//获取鼠标滚轮在滚动时所获得的行数
//SystemInformation.MouseWheelScrollLines.ToString();
//判断该操作系统是否支持滚轮鼠标
//SystemInformation.NativeMouseWheelSupport.ToString();
}
#endregion
private void panel1_MouseWheel(object sender, System.Windows.Forms.MouseEventArgs e)
{
MessageBox.Show("滚动事件已被捕捉");
System.Drawing.Size t = pictureBox1.Size;
t.Width += e.Delta;
t.Height += e.Delta;
pictureBox1.Width = t.Width;
pictureBox1.Height = t.Height;
}