MQL4 OrderSend Error

[pyroteddie]

Firstly, Yes i know this is the MQL5 Website, tried to make an account for the MQL4 but it kept redirecting me here, so here i am. 

For some reason my OrderSend function in the code is listed as a Bool function with only 2 input parameters. Can someone please explain.

  virtual bool      OrderSend(const MqlTradeRequest &request,MqlTradeCheckResult);

Help?