title: Simulate Mouse Click in a browser without Moving Cursor
body: <p>I created a windows form and added two buttons and a browser in the form. I used a program to get the mouse coordinates and click a login button. I would like to implement this without moving the cursor. 
  I am not looking to find the login button ID or use HTML request/response.</p>
  
  <p>Any idea if it is possible to click non html button in a browser without moving the cursor.</p>
  
  <p>This code below works but only for other controls within the form but not for the browser that is part of the form</p>
  
  <pre><code>using System;
  using System.Drawing;
  using System.Runtime.InteropServices;
  using System.Windows.Forms;
  
  namespace simulateclicktest
  {
      public partial class Form1 : Form
      {
          [DllImport("user32.dll")]
          private static extern IntPtr SendMessage(IntPtr hWnd, int Msg,
              IntPtr wParam, IntPtr lParam);
  
          [DllImport("user32.dll", EntryPoint = "WindowFromPoint",
              CharSet = CharSet.Auto, ExactSpelling = true)]
          public static extern IntPtr WindowFromPoint(Point point);
  
          private const int BM_CLICK = 0x00F5;
  
          public Form1()
          {
              InitializeComponent();
  
          }
  
          private void button1_Click(object sender, EventArgs e)
          {
              // Specify the point you want to click
              var screenPoint = new Point(157
                  ,455);
              // Get a handle
                                    var handle = WindowFromPoint(screenPoint);
              // Send the click message
                    if (handle != IntPtr.Zero)
              {
                  SendMessage(handle, BM_CLICK, IntPtr.Zero, IntPtr.Zero);
              }
          }
  
          private void button2_Click(object sender, EventArgs e)
          {
              MessageBox.Show("clicked");
          }
  
      }
  }
  </code></pre>