ScreenRatio function
function ScreenRatio(ACanvas:
TCanvas3D): Double;
Unit
TeeProcs
Description
Returns a number between 0 and 1 indicating the proportion of horizontal screen resolution versus vertical screen resolution:
ScreenRatio = Horizontal / Vertical
This function is used by TCircledSeries to calculate the horizontal and vertical radius of the series so it appears as a circle and not an ellipse on screen.
Note:
On some machines and operating systems the screen ratio cannot be correctly calculated and might return wrong results (ie: on Remote Desktop sessions).
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