drawing an indicator in the background?

(1st, must thank the moderator letting me post a new thread...pleasant surprise)
I would like to draw an Indi. that draws Histogram lines to shadow an area (see the pic att.)
the problem is that I can't move it, or program it to background, as is done with Objects.
any idea how to resolve it, will be mostly welcome ;-)

If you wrote your indicator in MQL5, I believe you could achieve what you want to do unless I misunderstand the documentation.

It might be possible in MQL4, but I don't know how to do it.

the way i would do it is similar to the way i draw candles in sub-windows...

you will need layers of histo buffer pairs on your main chart.

pair 1. background shading from lower bound to upper bound as per your specs.
pair 2. width of 1 wick color for both upper and lower wick
pair 3. width of 3 or 5 (whichever looks right, which i think is 3) bull color body
last available, pair 4. similar to 3 except bear color body.

with this you are creating your outward shading as per your question, but this inevitably overdraws the chart candles, so then you plot a long wick from low to high on top of your background, and then finally you plot a bull colored histo over the long wick for the open to close / bear colored histo over the long wick for the open to close. whichever bull / bear pair is not relevant you simply set to zero zero and therefore does not show.

you won't get the smooth appearance that your image has for the shaded area, but you'll get something close.

\o/

someone offered to redraw the Bid and other lines by another indicator as objects that will cover my indicator. it's a nice Idea but lack of spark...

thanks CodeMeister and nubcake, so far you gave me the best profesional view, and summing up I m comming to conclusion that MQ4 is missing such option.
I wonder if it can be done by other ways, that dosnt overload the system (anyone that knows machine language that might alter the basic flags of the indicator...I would really eagger to have such a solution)
thanks, pals