Sending specific keys on the Numpad like +, -, / or Enter (simulating a keypress)

Question

I am working on a project where it is necessary to simulate key-presses to cause specific behaviours in a different application.

All is running well and fine, using

Answer 1

I found this here works for me !

protected override void WndProc(ref Message m)
{
     if (m.Msg == 256 && m.WParam.ToInt32() == 13)
     {   // WM_KEYDOWN == 256, Enter == 13
         if ((m.LParam.ToInt32() >> 24) == 0)
         {
             MessageBox.Show("main enter pressed!");
         }
         else
         {
             MessageBox.Show("numpad enter pressed!");
         }
      }
      else
      {
         base.WndProc(ref m);
      }
}