屏蔽鼠标消息
using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Data;
namespace MyProg
{
/// <summary>
/// Form1 的摘要说明。
/// </summary>
public class Form1 : System.Windows.Forms.Form,IMessageFilter
{
public bool PreFilterMessage(ref System.Windows.Forms.Message SystemMessage)
{
if (SystemMessage.Msg >= 513 && SystemMessage.Msg <= 515) //513|515是对应目标消息的值,
//可以更改具体可以参照windows平台开发帮助
{//不响应鼠标左键消息
return true;
}
return false;//响应则为false
}
private System.Windows.Forms.Button button1;
private System.Windows.Forms.Button button2;
/// <summary>
/// 必需的设计器变量。
/// </summary>
private System.ComponentModel.Container components = null;
public Form1()
{
//
// Windows 窗体设计器支持所必需的
//
InitializeComponent();
//
// TODO: 在 InitializeComponent 调用后添加任何构造函数代码
//
}
/// <summary>
/// 清理所有正在使用的资源。
/// </summary>
protected override void Dispose( bool disposing )
{
if( disposing )
{
if (components != null)
{
components.Dispose();
}
}
base.Dispose( disposing );
}
#region Windows 窗体设计器生成的代码
/// <summary>
/// 设计器支持所需的方法 - 不要使用代码编辑器修改
/// 此方法的内容。
/// </summary>
private void InitializeComponent()
{
this.button1 = new System.Windows.Forms.Button();
this.button2 = new System.Windows.Forms.Button();
this.SuspendLayout();
//
// button1
//
this.button1.Location = new System.Drawing.Point(88, 40);
this.button1.Name = "button1";
this.button1.Size = new System.Drawing.Size(136, 23);
this.button1.TabIndex = 0;
this.button1.Text = "禁止鼠标左键单击";
this.button1.Click += new System.EventHandler(this.button1_Click);
//
// button2
//
this.button2.Location = new System.Drawing.Point(88, 80);
this.button2.Name = "button2";
this.button2.Size = new System.Drawing.Size(136, 23);
this.button2.TabIndex = 1;
this.button2.Text = "允许鼠标左键单击";
this.button2.Click += new System.EventHandler(this.button2_Click);
//
// Form1
//
this.AutoScaleBaseSize = new System.Drawing.Size(6, 14);
this.ClientSize = new System.Drawing.Size(312, 150);
this.Controls.Add(this.button2);
this.Controls.Add(this.button1);
this.MaximizeBox = false;
this.Name = "Form1";
this.StartPosition = System.Windows.Forms.FormStartPosition.CenterScreen;
this.Text = "演示屏蔽鼠标消息";
this.Load += new System.EventHandler(this.Form1_Load);
this.ResumeLayout(false);
}
#endregion
/// <summary>
/// 应用程序的主入口点。
/// </summary>
[STAThread]
static void Main()
{
Application.Run(new Form1());
}
private void button1_Click(object sender, System.EventArgs e)
{//禁止鼠标左键单击
Application.AddMessageFilter(this);
MessageBox.Show("鼠标左键已被禁止,请用Tab键执行操作!","信息提示",MessageBoxButtons.OK,MessageBoxIcon.Information);
}
private void button2_Click(object sender, System.EventArgs e)
{//允许鼠标左键单击
Application.RemoveMessageFilter(this);
MessageBox.Show("鼠标左键已解禁,可以执行操作!","信息提示",MessageBoxButtons.OK,MessageBoxIcon.Information);
}
private void Form1_Load(object sender, EventArgs e)
{
}
#region IMessageFilter 成员
bool IMessageFilter.PreFilterMessage(ref Message m)
{
throw new Exception("The method or operation is not implemented.");
}
#endregion
}
}