MQL4参考 交易函数 OrderTicket
Returns ticket number of the currently selected order.
int OrderTicket();
Returned value
Ticket number of the currently selected order.
Note
The order must be previously selected by the OrderSelect() function.
Example:
if(OrderSelect(12, SELECT_BY_POS)==true) order=OrderTicket(); else Print("OrderSelect failed error code is",GetLastError());