Re: printing a RichEdit box

Posted by webmaster Guido on March 20, 2008

In Reply to Re: About Rich Edit Box posted by RussCAp12602 on March 19, 2008

: Thanks for the reply! One question: What do the numbers 100 and 200 in the code refer to? I'm guessing "pixels".

: I'm limited as to what I can do because of what is allowed by Turbo Delphi 6. For example, I can't add any controls.

In the previous code, the numbers 100 and 200 are the positions in points of the tab stops.

As promised, here's also a source code example for printing a RichEdit; I tested it with the free Turbo Delphi Explorer :))

The following procedure accepts parameters for the left, right, top and bottom margins in inches, the number of copies to be printed and the title of the printjob:

procedure TForm1.PrintRichEdit(LMargin, RMargin, TMargin, BMargin: real; 
  Copies: integer; JobTitle: string);
  PixX, PixY, LeftNonPrint, TopNonPrint: integer;
  R: TRect;
  // Get pixels per inch
  PixX := GetDeviceCaps(Printer.Handle, LOGPIXELSX);
  PixY := GetDeviceCaps(Printer.Handle, LOGPIXELSY);
  // Non-printable margins
  LeftNonPrint := GetDeviceCaps(Printer.Handle, PHYSICALOFFSETX);
  TopNonPrint  := GetDeviceCaps(Printer.Handle, PHYSICALOFFSETY);
  // Set the margins
  R.Left   := Round(LMargin * PixX) - LeftNonPrint;
  R.Right  := Printer.PageWidth - LeftNonPrint - Round(RMargin * PixX);
  R.Top    := Round(TMargin * PixY) - TopNonPrint;
  R.Bottom := Printer.PageHeight - Round(BMargin * PixY) - TopNonPrint;
  RichEdit1.PageRect := R;
  // Print the desired number of copies
  while Copies > 0 do begin

How to call this procedure:

procedure TForm1.Button1Click(Sender: TObject);
  PrintRichEdit(1, 1, 1, 1, 1, 'Printing the RichEdit');

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