最近学习一些Windows相关的一些编程,需要获取一些窗体的句柄,因此上网查阅了一些资料,发现获取窗体的句柄主要通过User32的三个函数来完成:
WindowFromPoint 返回一个窗口句柄
GetWindowText
GetClassName
下面是实现过程
新建一个项目:GetHandle
加入一个Button,TextBox和Timer控件
后台代码如下:
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Da
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.Runtime.InteropServices;
namespace GetHandle
{
public partial class Form1 : Form
{
//获取窗口标题
[DllImp
public static extern int GetWindowText(
IntPtr hWnd, //窗口句柄
StringBuilder lpString, //标题
int nMaxCount //最大值
);
//获取类的名字
[DllImp
private static extern int GetClassName(
IntPtr hWnd, //句柄
StringBuilder lpString, //类名
int nMaxCount //最大值
);
//根据坐标获取窗口句柄
[DllImp
private static extern IntPtr WindowFromPoint(
Point Point //坐标
);
public Form1()
{
InitializeComponent();
}
private void button1_Click(object sender, EventArgs e)
{
timer1.Enabled = !timer1.Enabled;
}
private void timer1_Tick(object sender, EventArgs e)
{
int x = Cursor.Position.X;
int y = Cursor.Position.Y;
Point p = new Point(x, y);
IntPtr formHandle = WindowFromPoint(p);//得到窗口句柄
StringBuilder title = new StringBuilder(256);
GetWindowText(formHandle, title, title.Capacity);//得到窗口的标题
StringBuilder className = new StringBuilder(256);
GetClassName(formHandle, className, className.Capacity);//得到窗口的句柄
this.textBox1.Text = "窗口句柄:" + formHandle.ToString() + Environment.NewLine + "窗口标题:" + title + Environment.NewLine + "类名:" + className;
}
private void textBox1_KeyDown(object sender, KeyEventArgs e)
{
if(e.KeyCode==Keys.Enter || e.KeyCode==Keys.Space)
{
this.button1.PerformClick();
}
}
}
}
其实这些方法主要也是参照了神秘猪博客上的方法,地址为:http://blog.sina.com.cn/s/blog_59d78c8f0100atli.html,有兴趣的朋友也可以上去看看,贴出来只是为了方便大家一起参阅学习