On 08.06.2023 19:30, Giuliano Colla wrote:
Il 08/06/23 18:40, Ondrej Pokorny via lazarus ha scritto:
And because it is so much fun, I wrote a completely general program
to test it.
Well you've shown that it isn't so bad. But there's another detail to
consider, when resizing: font size. Font size can (and should be)
specified in typographic points, in order to ensure that text is both
readable and not too large. i.e. in units which are 1/72". Resizing
when text size is specified in inches, i.e. in its actual, system
independent, size, while width and height are specified in pixels i.e.
in system dependent units is the best way to create the mess which is
there since the early times of Delphi.
Font size/height are not scaled. The TFont.PixelsPerInch property is
directly assigned to the target value, so there cannot be a scaling
problem there.
See TControl.ScaleFontsPPI and TControl.DoScaleFontPPI.
Ondrej
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