c# 获取鼠标处窗口句柄，程序嵌入桌面

来源：互联网发布：淘宝客有权重吗编辑：程序博客网时间：2024/05/16 14:18

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using System.Runtime.InteropServices;

namespace WindowsApplication1
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        const int GW_HWNDFIRST = 0; //{同级别 Z 序最上}
        const int GW_HWNDLAST = 1; //{同级别 Z 序最下}
        const int GW_HWNDNEXT = 2; //{同级别 Z 序之下}
        const int GW_HWNDPREV = 3; //{同级别 Z 序之上}
        const int GW_OWNER = 4; //{属主窗口}
        const int GW_CHILD = 5; //{子窗口中的最上}

        [DllImport("user32.dll", EntryPoint = "FindWindow")]
        public static extern int FindWindow(
            string lpClassName,
            string lpWindowName
        );

        [DllImport("user32.dll", EntryPoint = "GetWindow")]//获取窗体句柄，hwnd为源窗口句柄
        /*wCmd指定结果窗口与源窗口的关系，它们建立在下述常数基础上：
              GW_CHILD
              寻找源窗口的第一个子窗口
              GW_HWNDFIRST
              为一个源子窗口寻找第一个兄弟（同级）窗口，或寻找第一个顶级窗口
              GW_HWNDLAST
              为一个源子窗口寻找最后一个兄弟（同级）窗口，或寻找最后一个顶级窗口
              GW_HWNDNEXT
              为源窗口寻找下一个兄弟窗口
              GW_HWNDPREV
              为源窗口寻找前一个兄弟窗口
              GW_OWNER
              寻找窗口的所有者
         */
        public static extern int GetWindow(
            int hwnd,
            int wCmd
        );

        [DllImport("user32.dll", EntryPoint = "SetParent")]//设置父窗体
        public static extern int SetParent(
            int hWndChild,
            int hWndNewParent
        );

        [DllImport("user32.dll", EntryPoint = "GetCursorPos")]//获取鼠标坐标
        public static extern int GetCursorPos(
            ref POINTAPI lpPoint
        );

        [StructLayout(LayoutKind.Sequential)]//定义与API相兼容结构体，实际上是一种内存转换
        public struct POINTAPI
        {
            public int X;
            public int Y;
        }

        [DllImport("user32.dll", EntryPoint = "WindowFromPoint")]//指定坐标处窗体句柄
        public static extern int WindowFromPoint(
            int xPoint,
            int yPoint
        );

        private void timer1_Tick(object sender, EventArgs e)
        {
            POINTAPI point = new POINTAPI();//必须用与之相兼容的结构体，类也可以

            GetCursorPos(ref point);//获取当前鼠标坐标
            int hwnd = WindowFromPoint(point.X, point.Y);//获取指定坐标处窗口的句柄

this.label1.Text =point.X.ToString() + ":" + point.Y.ToString() + "-" + hwnd.ToString();//显示效果，此时窗口已经嵌入桌面了
}

        const int GW_CHILD = 5;//定义窗体关系
        private void Form1_Load(object sender, EventArgs e)
        {
            int hDesktop = FindWindow("Progman", null);//获取系统句柄
            hDesktop = GetWindow(hDesktop, GW_CHILD);//获取其子窗口句柄，就是桌面的句柄
            SetParent((int)this.Handle, hDesktop);//设置父窗体，第一个为要被设置的窗口，第二个参数为指定其父窗口句柄
        }
    }
}

一个网上的例子
c# 获取鼠标处窗口句柄，程序嵌入桌面

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using System.Runtime.InteropServices;

namespace WindowsApplication1
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}

[DllImport("user32.dll", EntryPoint = "FindWindow")]
public static extern int FindWindow(
string lpClassName,
string lpWindowName
);

[DllImport("user32.dll", EntryPoint = "GetWindow")]//获取窗体句柄，hwnd为源窗口句柄
/*wCmd指定结果窗口与源窗口的关系，它们建立在下述常数基础上：
GW_CHILD
寻找源窗口的第一个子窗口
GW_HWNDFIRST
为一个源子窗口寻找第一个兄弟（同级）窗口，或寻找第一个顶级窗口
GW_HWNDLAST
为一个源子窗口寻找最后一个兄弟（同级）窗口，或寻找最后一个顶级窗口
GW_HWNDNEXT
为源窗口寻找下一个兄弟窗口
GW_HWNDPREV
为源窗口寻找前一个兄弟窗口
GW_OWNER
寻找窗口的所有者
*/
public static extern int GetWindow(
int hwnd,
int wCmd
);

[DllImport("user32.dll", EntryPoint = "SetParent")]//设置父窗体
public static extern int SetParent(
int hWndChild,
int hWndNewParent
);

[DllImport("user32.dll", EntryPoint = "GetCursorPos")]//获取鼠标坐标
public static extern int GetCursorPos(
ref POINTAPI lpPoint
);

[StructLayout(LayoutKind.Sequential)]//定义与API相兼容结构体，实际上是一种内存转换
public struct POINTAPI
{
public int X;
public int Y;
}

[DllImport("user32.dll", EntryPoint = "WindowFromPoint")]//指定坐标处窗体句柄
public static extern int WindowFromPoint(
int xPoint,
int yPoint
);

private void timer1_Tick(object sender, EventArgs e)
{
POINTAPI point = new POINTAPI();//必须用与之相兼容的结构体，类也可以

GetCursorPos(ref point);//获取当前鼠标坐标
int hwnd = WindowFromPoint(point.X, point.Y);//获取指定坐标处窗口的句柄

this.label1.Text =point.X.ToString() + ":" + point.Y.ToString() + "-" + hwnd.ToString();//显示效果，此时窗口已经嵌入桌面了
}

const int GW_CHILD = 5;//定义窗体关系
private void Form1_Load(object sender, EventArgs e)
{
int hDesktop = FindWindow("Progman", null);//获取系统句柄
hDesktop = GetWindow(hDesktop, GW_CHILD);//获取其子窗口句柄，就是桌面的句柄
SetParent((int)this.Handle, hDesktop);//设置父窗体，第一个为要被设置的窗口，第二个参数为指定其父窗口句柄
}
}
}

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