I want help to draw a trend line

Maybe you will be lucky and somebody will understand what you are asking for

I hope so because I do not speak English. I'll try to make me understand.

Avec l'aide de translate.google, je reformule ma question: I want to know how to use the x-axis to time on a trend line to two points?

Uncompiled / untested, but it should be something like this:

 

      if(!ObjectCreate(0,LineName,OBJ_TREND,0,StartTime,StartPrice,EndTime,EndPrice))
         {
          Print("ERROR CREATING LINE ", LineName);
         }
      else
         {
          ObjectSetInteger(0, LineName, OBJPROP_RAY, false);
         }

Thank you for your reply. I understand the structure to create a line. But my problem is that I can not use the datetime format. exemple : I want to create a line that covers the day today. ObjectCreate(0,LineName,OBJ_TREND,0,StartTime(00:00AM),StartPrice,EndTime(23:59PM),EndPrice)) . How to write 00:00 AM and 11:59 PM in datetime format ?? thank you.

Well the simplest way for the start time would be by using iTime on PERIOD_D1. Not infallible as if the D1 chart is updating, you may get an error

You can find midnight today with 

datetime Midnight=TimeCurrent()-(TimeCurrent()%(PERIOD_D1*60));

 (I learnt that from RaptorUK)

and you can then add the number of seconds in a day-60 to get to 11:59 

thank you very much. I think that , I found my answer.