Am 06.10.2019 um 12:14 schrieb AlexeyT via lazarus:
IMO I have found place where width of canvas line is not scaled to
current DPI.
procedure TCustomGrid.ChangeCursor(ACursor: TCursor;
...
Canvas.Pen.Width:=3;
...
Canvas.Pen.Width:=1;
AFAIK, pen widths so far are not scaled at all. If they were,
pen.Width=1 should be scaled, too, and this can have a detrimental
effect on line styles and drawing speed, at least on Windows.
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