Delphi World - это проект, являющийся сборником статей и малодокументированных возможностей  по программированию в среде Delphi. Здесь вы найдёте работы по следующим категориям: delphi, delfi, borland, bds, дельфи, делфи, дэльфи, дэлфи, programming, example, программирование, исходные коды, code, исходники, source, sources, сорцы, сорсы, soft, programs, программы, and, how, delphiworld, базы данных, графика, игры, интернет, сети, компоненты, классы, мультимедиа, ос, железо, программа, интерфейс, рабочий стол, синтаксис, технологии, файловая система...
Как прочитать список возможностей принтера

Автор: http://www.swissdelphicenter.ch

uses
  Printers;

//------------------------------------------------------------------------------
// Printer Device Debugging Code to TMemo Componenet
// (c) - 1999 / by A. Weidauer
// alex.weiauer@huckfinn.de
//------------------------------------------------------------------------------

procedure GetDeviceSettings(DevCtrl: TMemo);
var
  Sep: string;
  //-----------------------------------------------
  procedure MakeInt(S: string; key: Integer);
  begin
    S := UpperCase(S);
    DevCtrl.Lines.Add(UpperCase(Format(' %36S = %d ',
      [s, GetDeviceCaps(Printer.Handle, Key)])));
  end;
  //-----------------------------------------------
  function StringToBits(S: string): string;
  var
    H: string;
    i: Integer;
    //-----------------------------------------------
    function SubStr(C: Char): string;
    begin
      if c = '0' then
        SubStr := '0000';
      if c = '1' then
        SubStr := '0001';
      if c = '2' then
        SubStr := '0010';
      if c = '3' then
        SubStr := '0011';
      if c = '4' then
        SubStr := '0100';
      if c = '5' then
        SubStr := '0101';
      if c = '6' then
        SubStr := '0110';
      if c = '7' then
        SubStr := '0111';
      if c = '8' then
        SubStr := '1000';
      if c = '9' then
        SubStr := '1001';
      if c = 'A' then
        SubStr := '1010';
      if c = 'B' then
        SubStr := '1011';
      if c = 'C' then
        SubStr := '1100';
      if c = 'D' then
        SubStr := '1101';
      if c = 'E' then
        SubStr := '1110';
      if c = 'F' then
        SubStr := '1111';
    end;
    //-----------------------------------------------
  begin
    StringToBits := '';
    S := UpperCase(s);
    H := '';
    if Length(S) = 0 then
      Exit;
    if Length(S) = 1 then
      S := '0000' + S;
    if Length(S) = 2 then
      S := '000' + S;
    if Length(S) = 3 then
      S := '00' + S;
    if Length(S) = 4 then
      S := '0' + S;
    for i := 1 to Length(s) do
      H := H + ' ' + SubStr(S[i]);
    StringToBits := H;
  end;
  //-----------------------------------------------
  procedure MakeHex(S: string; key: Cardinal);
  var
    h: string;
  begin
    S := UpperCase(S);
    h := Format('%X', [GetDeviceCaps(Printer.Handle, Key)]);
    if Length(H) = 0 then
      Exit;
    if Length(H) = 1 then
      H := '0000' + H;
    if Length(H) = 2 then
      H := '000' + H;
    if Length(H) = 3 then
      H := '00' + H;
    if Length(H) = 4 then
      H := '0' + H;
    DevCtrl.Lines.Add('');
    DevCtrl.Lines.Add(SEP);
    DevCtrl.Lines.Add('');
    DevCtrl.Lines.Add(Format('%37S = Flags(%S) Key(%S)',
      [s, h, StringToBits(H)]
      ));
    // (( GetDeviceCaps(Printer.Handle,Key),
  end;
  //----------------------------------------------------
  procedure MakeFlag(S: string; key, subKey: Cardinal);
  var
    i: Cardinal;
  begin
    S := UpperCase(S);
    i := GetDeviceCaps(Printer.Handle, Key);
    if i and SubKey <> 0 then
      DevCtrl.Lines.Add(Format(' %34S = Flag(%4S) Key(%6D,%S)',
        [s, 'ON ', SubKey, StringToBits(Format('%x', [SubKey]))]))
    else
      DevCtrl.Lines.Add(Format(' %34S = Flag(%4S) Key(%6D,%S)',
        [s, 'OFF', SubKey, StringToBits(Format('%x', [SubKey]))]))
  end;
  //----------------------------------------------------
  function TechnoToStr(i: Integer): string;
  begin
    TechnoToStr := '#ERROR# is Unknwon';
    case i of
      DT_PLOTTER: TechnoToStr := 'Vector Plotter';
      DT_RASDISPLAY: TechnoToStr := 'Raster Display';
      DT_RASPRINTER: TechnoToStr := 'Raster Printer';
      DT_RASCAMERA: TechnoToStr := 'Raster Camera';
      DT_CHARSTREAM: TechnoToStr := 'Character Stream';
      DT_METAFILE: TechnoToStr := 'Metafile';
      DT_DISPFILE: TechnoToStr := 'Display file';
    end;
  end;

  //--Main Procedure
  //----------------------------------------------------------
begin
  DevCtrl.SetFocus;
  DevCtrl.Visible := False;
  if Printer.PrinterIndex < 0 then
    Exit;
  // Device Organisation
  try

    if not (GetMapMode(Printer.Handle) = MM_TEXT) then
      SetMapMode(Printer.Handle, MM_Text);
    DevCtrl.Clear;

    Sep :=
      '_____________________________________________________________';
    DevCtrl.Lines.Add(sep);
    DevCtrl.Lines.Add('');
    DevCtrl.Lines.Add(' PRINTER : ' + Printer.Printers[Printer.PrinterIndex]);
    DevCtrl.Lines.Add(sep);
    DevCtrl.Lines.Add('');

    DevCtrl.Lines.Add(sep);
    DevCtrl.Lines.Add('');
    DevCtrl.Lines.Add(Format('%36S = %D', ['NUMBER Of COPIES',
      Printer.Copies]));
    if Printer.Orientation = poLandscape then
      DevCtrl.Lines.Add(Format('%36S = LANDSCAPE', ['ORIENTATION']));
    if Printer.Orientation = poPortrait then
      DevCtrl.Lines.Add(Format('%36S = PORTRAIT', ['ORIENTATION']));

    DevCtrl.Lines.Add(sep);
    DevCtrl.Lines.Add('');
    MakeInt('DRIVERVERSION', DRIVERVERSION);
    DevCtrl.Lines.Add(Format(' %36S = %S', ['TECHNOLOGY',
      UpperCase(TechnoToStr(GetDeviceCaps(Printer.Handle, Technology)))]));
    DevCtrl.Lines.Add(sep);
    DevCtrl.Lines.Add('');
    MakeInt('WIDTH [mm]', HORZSIZE);
    MakeInt('HEIGHT [mm]', VERTSIZE);
    MakeInt('WIDTH [pix]', HORZRES);
    MakeInt('HEIGHT [pix]', VERTRES);
    DevCtrl.Lines.Add(sep);
    DevCtrl.Lines.Add('');
    MakeInt('Physical Width [pix]', PHYSICALWIDTH);
    MakeInt('Physical Height[pix]', PHYSICALHEIGHT);
    MakeInt('Physical Offset X [pix]', PHYSICALOFFSETX);
    MakeInt('Physical Offset Y [pix]', PHYSICALOFFSETY);
    MakeInt('SCALING FACTOR X', SCALINGFACTORX);
    MakeInt('SCALING FACTOR Y', SCALINGFACTORY);
    DevCtrl.Lines.Add(sep);
    DevCtrl.Lines.Add('');
    MakeInt('horizontal [DPI]', LOGPIXELSX);
    MakeInt('vertial [DPI]', LOGPIXELSY);
    MakeInt('BITS PER PIXEL', BITSPIXEL);
    MakeInt('COLOR PLANES', PLANES);
    DevCtrl.Lines.Add(sep);
    DevCtrl.Lines.Add('');
    MakeInt('NUMBER OF BRUSHES', NUMBRUSHES);
    MakeInt('NUMBER OF PENS', NUMPENS);
    MakeInt('NUMBER OF FONTS', NUMFONTS);
    MakeInt('NUMBER OF COLORS', NUMCOLORS);
    DevCtrl.Lines.Add(sep);
    DevCtrl.Lines.Add('');
    MakeInt('ASPECT Ratio X [DPI]', ASPECTX);
    MakeInt('ASPECT Ratio Y [DPI]', ASPECTY);
    MakeInt('ASPECT Ratio XY [DPI]', ASPECTXY);
    DevCtrl.Lines.Add(sep);
    DevCtrl.Lines.Add('');
    MakeInt('SIZE OF PALETTE', SIZEPALETTE);
    MakeInt('RESERVED TO SYSTEM PALETTE **', NUMRESERVED);
    MakeInt('ACTUAL RASTER RESOLUTION **', COLORRES);
    DevCtrl.Lines.Add('');
    DevCtrl.Lines.Add(' **...only true if KEY RASTERCAPS(RC_PALETTE)= ON');
    MakeFlag('... KEY RASTERCAPS (RC_PALETTE)', RasterCaps, RC_PALETTE);
    DevCtrl.Lines.Add('');

    MakeHex('Clipping Capablities ', ClipCaps);
    DevCtrl.Lines.Add(sep);
    DevCtrl.Lines.Add('');
    MakeFlag('No Support ', ClipCaps, CP_NONE);
    MakeFlag('Support Rectangles', ClipCaps, CP_RECTANGLE);
    MakeFlag('Support PolyRegion 32 Bit', ClipCaps, CP_REGION);

    MakeHex('Raster Printing Flags ', RasterCaps);
    DevCtrl.Lines.Add(sep);
    DevCtrl.Lines.Add('');
    MakeFlag('Support Bitmap Transfer', RasterCaps, RC_BITBLT);
    MakeFlag('Support Banding', RasterCaps, RC_BANDING);
    MakeFlag('Support Scaling', RasterCaps, RC_SCALING);
    MakeFlag('Support Bitmaps > 64 kByte', RasterCaps, RC_BITMAP64);
    MakeFlag('Support features of Win 2.0', RasterCaps, RC_GDI20_OUTPUT);
    MakeFlag('Support Set~/GetDIBITS()', RasterCaps, RC_DI_BITMAP);
    MakeFlag('Support Palette Devices', RasterCaps, RC_PALETTE);
    MakeFlag('Support SetDIBitsToDevice()', RasterCaps, RC_DIBTODEV);
    MakeFlag('Support Floodfill', RasterCaps, RC_FLOODFILL);
    MakeFlag('Support StretchBlt()', RasterCaps, RC_STRETCHBLT);
    MakeFlag('Support StretchBID()', RasterCaps, RC_STRETCHDIB);
    MakeFlag('Support DIBS', RasterCaps, RC_DEVBITS);

    MakeHex('Curve Printion Flages', CurveCaps);
    DevCtrl.Lines.Add(sep);
    DevCtrl.Lines.Add('');
    MakeFlag('No Curve support', CurveCaps, CC_NONE);
    MakeFlag('Support Circles', CurveCaps, CC_Circles);
    MakeFlag('Support Pie', CurveCaps, CC_PIE);
    MakeFlag('Support Arces', CurveCaps, CC_CHORD);
    MakeFlag('Support Ellipses', CurveCaps, CC_ELLIPSEs);
    MakeFlag('Support WIDE FRAMES', CurveCaps, CC_WIDE);
    MakeFlag('Support STYLED FRAMES', CurveCaps, CC_STYLED);
    MakeFlag('Support WIDE&STYLED FRAMES', CurveCaps, CC_WIDESTYLED);
    MakeFlag('Support INTERIORS', CurveCaps, CC_INTERIORS);
    MakeFlag('Support ROUNDRECT', CurveCaps, CC_ROUNDRECT);

    MakeHex('Line & Polygon Printing Flags', LineCaps);
    DevCtrl.Lines.Add(sep);
    DevCtrl.Lines.Add('');
    MakeFlag('No Line Support', LineCaps, LC_NONE);
    MakeFlag('Support Polylines', LineCaps, LC_PolyLine);
    MakeFlag('Support Marker', LineCaps, LC_Marker);
    MakeFlag('Support PolyMarker', LineCaps, LC_PolyMarker);
    MakeFlag('Support Wide Lines', LineCaps, LC_WIDE);
    MakeFlag('Support STYLED Lines', LineCaps, LC_STYLED);
    MakeFlag('Support WIDE&STYLED Lines', LineCaps, LC_WIDESTYLED);
    MakeFlag('Support Lines Interiors', LineCaps, LC_INTERIORS);

    MakeHex('Polygon (Areal) Printing Flags', POLYGONALCAPS);
    DevCtrl.Lines.Add(sep);
    DevCtrl.Lines.Add('');
    MakeFlag('No Polygon Support', PolygonalCaps, PC_NONE);
    MakeFlag('Filling Alternate Polygons', PolygonalCaps, PC_POLYGON);
    MakeFlag('Drawing Rectangles', PolygonalCaps, PC_RECTANGLE);
    MakeFlag('Filling Winding Polygons', PolygonalCaps, PC_WINDPOLYGON);
    MakeFlag('Drawing Trapezoid (??Flag)', PolygonalCaps, PC_Trapezoid);
    MakeFlag('Drawing a ScanLine', PolygonalCaps, PC_SCANLINE);
    MakeFlag('Drawing Wide Border', PolygonalCaps, PC_WIDE);
    MakeFlag('Drawing Styled Border', PolygonalCaps, PC_STYLED);
    MakeFlag('Drawing WIDE&STYLED Border', PolygonalCaps, PC_WIDESTYLED);
    MakeFlag('Drawing Interiors', PolygonalCaps, PC_INTERIORS);

    MakeHex('Text Printing Flags', TEXTCAPS);
    DevCtrl.Lines.Add(sep);
    DevCtrl.Lines.Add('');
    MakeFlag('Support Character Output Precision', TextCaps, TC_OP_CHARACTER);
    MakeFlag('Support Stroke Output Precision', TextCaps, TC_OP_STROKE);
    MakeFlag('Support Stroke Clip Precision', TextCaps, TC_CP_STROKE);
    MakeFlag('Support 90° Character Rotation', TextCaps, TC_CR_90);
    MakeFlag('Support any Character Rotaion', TextCaps, TC_CR_ANY);
    MakeFlag('Support Character Scaling in X&Y', TextCaps, TC_SF_X_YINDEP);
    MakeFlag('Support Character Scaling REAL', TextCaps, TC_SA_DOUBLE);
    MakeFlag('Support Character Scaling RATIONAL', TextCaps, TC_SA_INTEGER);
    MakeFlag('Support Character Scaling EXACT', TextCaps, TC_SA_CONTIN);
    MakeFlag('Support Character Weight REAL', TextCaps, TC_EA_DOUBLE);
    MakeFlag('Support Character Italic', TextCaps, TC_IA_ABLE);
    MakeFlag('Support Character Underline', TextCaps, TC_UA_ABLE);
    MakeFlag('Support Character Strikeout', TextCaps, TC_SO_ABLE);
    MakeFlag('Support Character as RASTER FONT', TextCaps, TC_RA_ABLE);
    MakeFlag('Support Character as VECTOR FONT', TextCaps, TC_VA_ABLE);
    MakeFlag('Reserved Flag ???', TextCaps, TC_Reserved);
    MakeFlag('DEVICE NOT USE a SCROLLBIT BLOCK ?', TextCaps, TC_SCROLLBLT);
    DevCtrl.Lines.Insert(0, '..THE RESULTS ARE:');
  except
    // MessageDlg('The Current Printer is not valid ! ',
    // mtError,[mbok],0);
    Printer.PrinterIndex := -1;
    DevCtrl.Lines.Add(' ! The Printer is not valid !');
  end;
  DevCtrl.Visible := True;
  DevCtrl.SetFocus;
end;
Проект Delphi World © Выпуск 2002 - 2024
Автор проекта: USU Software
Вы можете выкупить этот проект.