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();

}

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

}

}

}