public static void MouseLeftPress(int x, int y)
{
MOUSEINPUT mouseinput = new MOUSEINPUT();
mouseinput.X = x * (65535 / Screen.PrimaryScreen.Bounds.Width);
mouseinput.Y = y * (65535 / Screen.PrimaryScreen.Bounds.Height);
mouseinput.Flags = (uint)(MouseFlag.LEFTDOWN | MouseFlag.MOVE | MouseFlag.ABSOLUTE);
var click = new INPUT();
click.Type = (UInt32)InputType.MOUSE;
click.Data.Mouse = mouseinput;
INPUT[] inputList = new INPUT[1];
inputList[0] = click;
var numberOfSuccessfulSimulatedInputs = InputSimulator.SendInput(1, inputList, Marshal.SizeOf(typeof(INPUT)));
if (numberOfSuccessfulSimulatedInputs == 0)
{
throw new Exception("Mouse Click Failed");
}
}