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copied!<p>You should achieve better results if you resize the image to an intermediate bitmap (with a size suitable for the printer resolution) using one of the resamplers in <a href="http://wiki.delphi-jedi.org/wiki/JCL_Help%3aStretch@Cardinal@Cardinal@TResamplingFilter@Single@TGraphic@TBitmap" rel="nofollow">JCL</a> or <a href="http://graphics32.org/" rel="nofollow">Graphics32</a> and then you print the resized bitmap.</p> <p>The following routine will try to get the same size in printer as in the screen:</p> <pre><code>uses JclGraphics; procedure PrintGraphic(source: TGraphic); var dest: TBitmap; destWidth, destHeight, printerPixelsPerInch_X, printerPixelsPerInch_Y, printerLeftMargin, printerTopMargin: integer; begin printerPixelsPerInch_X := GetDeviceCaps(Printer.Handle, LOGPIXELSX); printerPixelsPerInch_Y := GetDeviceCaps(Printer.Handle, LOGPIXELSY); printerLeftMargin := GetDeviceCaps(Printer.Handle, PHYSICALOFFSETX); printerTopMargin := GetDeviceCaps(Printer.Handle, PHYSICALOFFSETY); dest := TBitmap.Create; try destWidth := source.Width * printerPixelsPerInch_X div Screen.PixelsPerInch; destHeight := source.Height * printerPixelsPerInch_Y div Screen.PixelsPerInch; Stretch(destWidth, destHeight, rfLanczos3, 0, source, dest); Printer.BeginDoc; try Printer.Canvas.Draw(printerLeftMargin, printerTopMargin, dest); Printer.EndDoc; except Printer.Abort; raise; end; finally dest.Free; end; end; procedure TFormMain.Button1Click(Sender: TObject); begin if not PrinterSetupDialog.Execute then exit; PrintGraphic(Image1.Picture.Graphic); end; </code></pre>

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