How can I find out if a position on an opened order has already opened?

[sarged]

I'm using pedning orders Sell Limit and Buy Limit. I open both orders at once, but if either position has been opened, I have to close another. The problem is i cannot find out wether my pending order has already opened a position or not. Because I send a pending order I can get a ticket number from the order result, but it's status doesn't change. Can you please clarify to me how this procedure can be done?

[Alexey Da]

Would you like to close existing position or to delete existing pending order?

You can try to select order by ticket using OrderSelect function. If your order has already opened position you will receive "false" and _LastError=4754.

[sarged]

Well ok, I found out that too, but thanks still.