Comment an open position

[huckey]

Hi,

  in my Expert I would need to update positions' comments when certain conditions are met.

  All I could find so far is that I can get these comment by using PositionGetString(POSITION_COMMENT). What I would need is the reverse, like PositionSetString(POSITION_COMMENT).

  I have been experimenting with something like this:

            mrequest.order = PositionGetInteger(POSITION_IDENTIFIER);

            mrequest.action = TRADE_ACTION_MODIFY;

            mrequest.comment = "MY COMMENT";

            OrderSend(mrequest, mresult).

 

  But this doesn't help, I get error code 4756.

 

  How can I update a position's comment?

 

Best regards

 

Huckey