title: C# mouse_event click doesn't work in my case
body: <p>I'm using a c# code to click on other process window,It's work great but it doesn't work when i want to click in Bluestack(Android Emulator) window.
  any idea ? </p>
  
  <p>the code :</p>
  
  <pre><code>[DllImport("user32.dll",CharSet=CharSet.Auto, CallingConvention=CallingConvention.StdCall)]
     public static extern void mouse_event(long dwFlags, long dx, long dy, long cButtons, long dwExtraInfo);
  
     private const int MOUSEEVENTF_LEFTDOWN = 0x02;
     private const int MOUSEEVENTF_LEFTUP = 0x04;
     private const int MOUSEEVENTF_RIGHTDOWN = 0x08;
     private const int MOUSEEVENTF_RIGHTUP = 0x10;
  
  
     public void DoMouseClick()
     {
        //Call the imported function with the cursor's current position
        int X = Cursor.Position.X;
        int Y = Cursor.Position.Y;
        mouse_event(MOUSEEVENTF_LEFTDOWN | MOUSEEVENTF_LEFTUP, X, Y, 0, 0);
     }
  </code></pre>