To simulate mouse click at a certain point on the screen

In this article I am going to show that how you can simulate mouse click programmatically (without mouse, physically) at a certain position on the monitor screen.

using System;

using System.Windows.Forms;

using System.Runtime.InteropServices;

public class formMouseClick : Form

{

//To change the current position

[System.Runtime.InteropServices.DllImport("user32.dll")]

static extern bool SetCursorPos(int x, int y);

//To raise mouse event

[DllImport("user32.dll",CharSet=CharSet.Auto, CallingConvention=CallingConvention.StdCall)]

public static extern void mouse_event(uint dwFlags, uint dx, uint dy, uint cButtons, uint dwExtraInfo);

private const int MOUSEEVENT_LEFTDOWN = 0x02;

private const int MOUSEEVENT_LEFTUP = 0x04;

private const int MOUSEEVENT_RIGHTDOWN = 0x08;

private const int MOUSEEVENT_RIGHTUP = 0x10;

public void DoMouseClick(int xPos, int yPos)

{

//Changing current position of mouse on the screen

SetCursorPos(xPos, yPos);

//Push mouse left button down

mouse_event(MOUSEEVENT_LEFTDOWN, (uint)xPos, (uint)yPos, 0, 0);

//Following line is to hold the button down for 1 second. You can skip this step.

System.Threading.Thread.Sleep(1000);

//Release mouse left button up

mouse_event(MOUSEEVENT_LEFTUP, (uint)xPos, (uint)yPos, 0, 0);

//Mouse click process have been completed

}

}