OrderSend() return value

[[Deleted]]

In the documentation it says that OrderSend() returns -1 on failure. But in the expert advisor example documentation here, it shows the following:

Ticket=OrderSend(Symb,OP_BUY,Lts,Ask,2,SL,TP);//Opening Buy
if (Ticket < 0)                        // Success :)
{
    Alert ("Opened order Buy ",Ticket);
    return;                             // Exit start()
}
if (Fun_Error(GetLastError())==1)      // Processing errors
    continue;                           // Retrying
return;                                // Exit start()

if(Ticket < 0) //Success

Directly after that it checks for the error number anyway. So I'm confused with this logic...

[Ubzen]

The Book examples has some Errors ... Ignore that piece of code. Should be >

[Simon Gniadkowski]

ubzen:
The Book examples has some Errors ... Ignore that piece of code. Should be >

. . . and make sure you Print() the error number if the OrderSend() failed . . . What are Function return values ? How do I use them ?

[[Deleted]]

Thanks all!