winform屏蔽鼠标事件

方法一：禁用鼠标事件

public partial class Form1 : Form,IMessageFilter
  {
      public Form1()
      {
          InitializeComponent();
      }  

      #region IMessageFilter 成员  

      public bool PreFilterMessage(ref Message m)
      {
          if (m.Msg == 522)
          {
              return true;
          }
          else
          {
              return false;
          }
      }  

      #endregion  

      private void Form1_Load(object sender, EventArgs e)
      {
          Application.AddMessageFilter(this );
      }
  }  

鼠标移动：512

鼠标左键：

down：513

up：     514

double click：515

鼠标右键：

down：516

up：517

鼠标滚轮：522

方法二：针对单个控件，当前方法只屏蔽滚动事件

  private void Form1_Load(object sender, EventArgs e)
        {
            numericUpDown1.MouseWheel += new MouseEventHandler(numericUpDown1_MouseWheel);
        }

        //取消滚轮事件
        void numericUpDown1_MouseWheel(object sender, MouseEventArgs e)
        {
            HandledMouseEventArgs h = e as HandledMouseEventArgs;
            if (h != null)
            {
                h.Handled = true;
            }
        }