Horizontal vs. vertical distance

[MisterH]

Hi,

If you push F8 and go to the Common tab, you can check the box to Scale fix One to One. This means that your chart will no longer automatically scale to the best fit of your monitor, but simply show the movement in an objective way. Now, if you want to relate the number of pips (vertical distance) to the horizontal distance that price has traveled (1 bar per time period of your currently chosen chart), how do you do that? I mean, expressing the horizontal movement in function of the vertical movement? If at 1-on-1 charts the pips move up 2 inches, and the bar-per-bar change is 0.5 inches, then one would say that the ratio is 1 to 4, but how do you do that in an real MT4 terminal?

[William Roeder]

int    horizontal= 1;
double vertical  = Close[1+horizontal] - Close[1];

Scale is irrelevant and meaning less. Change the size of the window will change the vertical moment in pixels. Change the size of the bars, changes the pixels per bar.

You can find out the vertical and horizontal with

        double  bot = WindowPriceMin(),                             // Scroll
                top = WindowPriceMax();                             // bug

        int     iVisible    = WindowFirstVisibleBar(),  // Chart Shift min 0
                iVisEnd     = MathMaxI(iVisible-WindowBarsPerChart(), 0);

and you can find out the pixel area of the chart starting with WindowHandle() and winAPI.

But those are still meaningless.