Programatically adjust Y scale on chart

[jepper]

Is it possible in code to adjust the vertical scale on a chart? To be sure, what I mean is, hold the mouse button on the scale and move the mouse forward or backwards. Thanks and good luck all.

[Carl Schreiber]

I don't really understand your problem. You can place your mouse on the scale of the prices, press the left mouse button and move your mouse up and down - is it this?

And here are all the function to manipulate the chart: https://www.mql5.com/en/docs/chart_operations

[William Roeder]

1. Add Scale Fix: how do i delete an erroneus bar - MQL5 programming forum (2020)

   Turn off autoscaling and drag the vertical scale or the chart. (Remember to turn is back on before minimizing the chart on MT4, or you will have to use F8; don't know about MT5.)

2. Turn off auto-scaling: uncheck Chart Right-click → Properties (F8) → Common → Scale Fix and you can drag the price scale to show less.
             how do i delete an erroneus bar - MQL5 programming forum (2020)

[jepper]

Carl Schreiber #:

I don't really understand your problem. You can place your mouse on the scale of the prices, press the left mouse button and move your mouse up and down - is it this?

And here are all the function to manipulate the chart: https://www.mql5.com/en/docs/chart_operations

The goal is to write a script that configures my trading screen. I've got most of this working, but because of my layout has only a few bars visible I have to adjust the Y axis to make some other chart objects visible (MAs, envelopes and the likes).

I found a reply on SO which I think could work for me https://stackoverflow.com/a/59291759