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Frequently Asked Questions

Printing in Delphi without using the TPrinter Unit

Question:

How can I print in Delphi without using the TPrinter Unit?

Answer:

The following example uses the Windows API function PrintDlg() to
allow the user to choose a printer and prints two pages using the
returned dc.

Example:

uses CommDlg;

{$IFNDEF WIN32}
 const MAX_PATH = 144;
{$ENDIF}

procedure TForm1.Button1Click(Sender: TObject);
var
  Pd : TPrintDlg;
  DocInfo: TDocInfo;
begin
  FillChar(Pd, sizeof(Pd), #0); 
  Pd.lStructSize := sizeof(Pd);
  Pd.hWndOwner := Form1.Handle;
  Pd.Flags := PD_RETURNDC;
  if PrintDlg(pd) then begin
    FillChar(DocInfo, sizeof(DocInfo), #0);
    DocInfo.cbSize := SizeOf(DocInfo);
    GetMem(DocInfo.lpszDocName, 32);
    GetMem(DocInfo.lpszOutput, MAX_PATH);
    lStrCpy(DocInfo.lpszDocName, 'My Document');
   {Add this line to print to a file }
    lStrCpy(DocInfo.lpszOutput, 'C:\Download\Test.doc');
    StartDoc(Pd.hDc, DocInfo);
    StartPage(Pd.hDc);
    TextOut(Pd.hDc, 100, 100, 'Page 1', 6);
    EndPage(Pd.hDc);
    StartPage(Pd.hDc);
    TextOut(Pd.hDc, 100, 100, 'Page 2', 6);
    EndPage(Pd.hDc);
    EndDoc(Pd.hDc);
    FreeMem(DocInfo.lpszDocName, 32);
    FreeMem(DocInfo.lpszOutput, MAX_PATH);
  end;
end;

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