C # Implementation of the mouse hook, you can get the mouse in the screen coordinates, remember to run with administrator rights only line
The code is as follows:
Using System;
Using System.Collections.Generic;
Using System.ComponentModel;
Using System.Data;
Using System.Drawing;
Using System.Linq;
Using System.Reflection;
Using System.Runtime.InteropServices;
Using System.Text;
Using System.Windows.Forms;
Namespace App01
{
public partial class Form1:form
{
public delegate int HookProc (int nCode, IntPtr wParam, IntPtr lParam);
Defining a hook handle
public static int hhook = 0;
Defining hook types
public const int WH_MOUSE_LL = 14;
Public HookProc myprocedure;
Mounting hooks
[DllImport ("user32.dll", CharSet = CharSet.Auto, callingconvention = Callingconvention.stdcall)]
public static extern int SetWindowsHookEx (int idhook, HookProc lpfn, IntPtr hinstance, int threadId);
Uninstalling Hooks
[DllImport ("user32.dll", CharSet = CharSet.Auto, callingconvention = Callingconvention.stdcall)]
public static extern bool UnhookWindowsHookEx (int idhook);
Call the next hook
[DllImport ("user32.dll", CharSet = CharSet.Auto, callingconvention = Callingconvention.stdcall)]
public static extern int CallNextHookEx (int idhook, int nCode, IntPtr wParam, IntPtr lParam);
[StructLayout (LayoutKind.Sequential)]
public class Point
{
public int x;
public int y;
}
[StructLayout (LayoutKind.Sequential)]
public class MouseHookStruct
{
Public Point pt;
public int hwnd;
public int whittestcode;
public int dwextrainfo;
}
Public Form1 ()
{
InitializeComponent ();
}
private void Button1_Click (object sender, EventArgs e)
{
if (Hhook = = 0)
{
Myprocedure = new HookProc (this. MOUSEHOOKPROC);
Here's a hook for hanging knots
Hhook = SetWindowsHookEx (Wh_mouse_ll, Myprocedure, Marshal.gethinstance (assembly.getexecutingassembly (). GetModules () [0]), 0);
if (Hhook = = 0)
{
MessageBox.Show ("SetWindowsHookEx Failed");
Return
}
Button1. Text = "Unload hook";
}
Else
{
BOOL ret = UnhookWindowsHookEx (hhook);
if (ret = = false)
{
MessageBox.Show ("UnhookWindowsHookEx Failed");
Return
}
Hhook = 0;
Button1. Text = "Mount Hook";
}
}
public int MouseHookProc (int nCode, IntPtr wParam, IntPtr LParam)
{
MouseHookStruct mymousehookstruct = (mousehookstruct) marshal.ptrtostructure (LParam, typeof (MouseHookStruct));
if (NCode < 0)
{
Return CallNextHookEx (Hhook, NCode, WParam, LParam);
}
Else
{
String strcaption = "x =" + mymousehookstruct.pt.x.tostring ("D") + "y =" + mymousehookstruct.pt.y.tostring ("D");
This. Text = strcaption;
Return CallNextHookEx (Hhook, NCode, WParam, LParam);
}
}
}
}
Demonstrate:
The above is the whole content of this article, I hope you can enjoy.
In addition to the Declaration,
Running GuestArticles are original, reproduced please link to the form of the address of this article
C # Implementation of mouse hooks
This address: http://www.paobuke.com/develop/c-develop/pbk23118.html
Related Content C # netremoting implementation of bidirectional communication C # Boxing and unpacking Knowledge Review C # textbox text box word limit problem C # How to add a background image to a PDF
C # Connection to the database methods C # and JavaScript implement interactive methods C # implements the Boss key function code C # method for generating code128 barcodes
C # Implementation of mouse hooks
