How to set: trailing stop to minimum, if trail

What is broker_digits and why do you divide the spread by broker_digits +1 ?

broker_digits determines if the broker is 4/5 digits.

I divide the spread so that it displays as 3, rather than 30.

I then add +1 to make sure the trailing stop is > minimum stop + spread + 1 ( almost a buffer you could say)

E.g. The EA has a trailing stop of 3, but the broker minimum trail(2) + spread(2) is 4, so the trailing stop is not triggered. In this case, the EA will change the trailing stop to 2+2+1=5.

The trailing stop will therefore be 5 and work without an order modify error.

I think this code is okay, but I am looking for an alternative solution.

Sorry, my error, I was reading your code wrong. :-)

Do you think it is a good solution? Would you do something similar to adjust the trailing stop to the minimum required?

1. MarketInfo(Symbol(), MODE_STOPLEVEL)*Point

   is the closest a stop can be, (3 pips or 30 points on IBFX.) 30/5 is meaning less.
   

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2. MarketInfo(Symbol(), MODE_SPREAD)

   is 20 on EURUSD (IBFX) but is zero on on some other pairs. Instead just add Ask-Bid

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3. if (TrailingStop < (MarketInfo(Symbol(),MODE_STOPLEVEL)/ broker_digits + MarketInfo(Symbol(), MODE_SPREAD)/ broker_digits +1)){ //checks if trail is < minimum+spread
   TrailingStop = (MarketInfo(Symbol(),MODE_STOPLEVEL)/ broker_digits + MarketInfo(Symbol(), MODE_SPREAD)/ broker_digits +1); // increase trail to min+spread

   Don't write impenetrable code, document it

   double  minGapPts   = MarketInfo(Symbol(),MODE_STOPLEVEL),  // unit is points
           minGapPtsAdj= minGapPts/ broker_digits;             // 1/5 minimum points
           
           spreadPts   = MarketInfo(Symbol(), MODE_SPREAD),    // unit is points
           spreadPtsAdj= spreadPts / broker_digits,            // 1/5 spread points
           
           whatever    = minGapPtsAdj + spreadPtsAdj + 1;      // unit is still points
           
   if (TrailingStop < whatever){ //checks if trail is < minimum+spread
       TrailingStop = whatever; // increase trail to min+spread
       // compareing a double to points is MEANINGLESS
   

   correct it

   double  minGapPts   = MarketInfo(Symbol(),MODE_STOPLEVEL),  // unit is points
           spreadDbl   = Ask - Bid,
   
           trailByDbl  = minGapPts * Point + spreadDbl         // delta price
           newSlPrc    = Bid - trailBy;
   if (TrailingStop < newSlPrc){ //checks if trail is < minimum+spread
       TrailingStop = newSlPrc; // increase trail to min+spread