PDFium Component Docs

PixelsToInches function

Component: TPdf · Unit: PDFium

Pretvori mjerenje u pikselima pri zadanom DPI-ju u inče

Syntax

function PixelsToInches(Pixels, PixelsPerInch: Double): Double;

Description

Statički pomoćni alat koji pretvara mjernu vrijednost između piksel / točka / inč jedinica. PDF koordinate su izražene u točkama (1 pt = 1/72 inča).

Convert a pixel measurement at the given DPI to inches. The conversion formula is value / DPI.

These helpers are class functions; you can call them without instantiating TPdf (e.g. TPdf.PixelsToInches(96)).

Remarks

DPI defaults to 96 (the Windows default screen DPI) when the parameter is omitted.
Use these helpers to translate between TBitmap pixel coordinates and PDF rectangles before passing them to AddImage / Annotation APIs.
Inverse conversions are available as the matching *To* functions on TPdf and TPdfView.

Example

var
  Margin: Double;
begin
  Margin := TPdf.PixelsToInches(300);
  Memo1.Lines.Add(Format('PixelsToInches(300) = %.4f', [Margin]));
end;

See Also

PixelsToPoints, PointsToInches, PointsToPixels