For example, I use the following code (which I've found in Project Management) to display a horizontal price line which updates on each tick:
Code: Select all
vars: intrabarpersist need_delete_this_bar(false);
if lastbaronchart then begin
value10 = TL_New(date, time-2400, close, date, time, close);
Value1 = TL_SetColor (value10, white);
value1 = TL_SetExtRight (value10, true);
value1 = TL_SetExtLeft (value10, false);
value1 = TL_setsize (value10, 1);
value1 = TL_Setstyle (value10, 2);
need_delete_this_bar = not need_delete_this_bar and value10[1] > 0 AND value10 <> value10[1];
value11 = tl_getfirst(1);
if tl_getnext(value11, 1) > 0 and need_delete_this_bar then value1 = TL_Delete(value11);
if barstatus = 2 then need_delete_this_bar = false;
end;
When the chart is grabbed in order to drag it along the time axis, it easily happens that you accidently grab the price line and move it.
So is there a reserved word in EL to lock drawings, or to be more precise, to prevent manually dragging them?