Drawing on the chart

[YYZ]

I have an application that requires lines to be drawn on the chart, I was told previously that this is not possible.  However in looking at other applications such the ZUP indicator or Fibonacci indicators, clearly this could be done.   Any guidance would be appreciated.   

[phi nuts]

LINE123:
I have an application that requires lines to be drawn on the chart, I was told previously that this is not possible.  However in looking at other applications such the ZUP indicator or Fibonacci indicators, clearly this could be done.   Any guidance would be appreciated.   

It's called object function https://docs.mql4.com/objects and https://docs.mql4.com/constants/objects . What you probably need are OBJ_VLINE (for vertical line), OBJ_HLINE (for horizontal line) or OBJ_TREND (for that line like in the ZUP)

[YYZ]

Thanks phi.nuts for the information.     Yes they would be similar to a fan (angled lines).