902 lines
22 KiB
ObjectPascal
902 lines
22 KiB
ObjectPascal
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{******************************************}
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{ }
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{ FastReport v4.0 }
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{ Printer }
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{ }
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{ Copyright (c) 1998-2008 }
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{ by Alexander Tzyganenko, }
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{ Fast Reports Inc. }
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{ }
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{******************************************}
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unit FMX.Win.frxPrinter;
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interface
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{$I fmx.inc}
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{$I frx.inc}
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uses
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System.Classes, System.SysUtils, Winapi.Windows, Winapi.WinSpool, System.Types, System.UITypes, System.Variants,
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FMX.Types, FMX.frxPrinter, FMX.Printer.Win, FMX.Printer, FMX.Canvas.GDIP, FMX.frxClass
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{$IFDEF DELPHI19}
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, FMX.Graphics
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{$ENDIF};
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type
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THackCanvas = class(TCanvas);
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// Fake printer used only for canvas creation
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TFakePrinterWin = class(TPrinterWin)
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protected
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FPageHeight: Integer;
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FPageWidth: Integer;
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FCanvas: TCanvas;
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procedure ActivePrinterChanged; override;
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procedure DoAbortDoc; override;
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procedure DoBeginDoc; override;
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procedure DoEndDoc; override;
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procedure DoNewPage; override;
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function GetCanvas: TCanvas; override;
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function GetNumCopies: Integer; override;
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function GetOrientation: TPrinterOrientation; override;
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function GetPageHeight: Integer; override;
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function GetPageWidth: Integer; override;
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function GetCapabilities: TPrinterCapabilities; override;
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procedure RefreshFonts; override;
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procedure RefreshPrinterDevices; override;
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procedure SetOrientation(Value: TPrinterOrientation); override;
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procedure SetNumCopies(Value: Integer); override;
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procedure SetDefaultPrinter; override;
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public
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constructor Create; override;
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destructor Destroy; override;
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end;
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TfrxPrinter = class(TfrxCustomPrinter)
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private
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FDeviceMode: THandle;
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FDC: HDC;
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FDriver: String;
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FMode: PDeviceMode;
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FWinPrinter: TFakePrinterWin;
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FOldWinPrinter: TPrinterWin;
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FOnChangedFont: TNotifyEvent;
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procedure CreateDevMode;
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procedure FreeDevMode;
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procedure GetDC;
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procedure FontChanged(Sender: TObject);
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public
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constructor Create(const AName, APort: String); override;
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destructor Destroy; override;
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procedure Init; override;
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procedure RecreateDC;
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procedure Abort; override;
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procedure BeginDoc; override;
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procedure BeginPage; override;
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procedure BeginRAWDoc; override;
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procedure EndDoc; override;
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procedure EndPage; override;
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procedure EndRAWDoc; override;
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procedure WriteRAWDoc(const buf: AnsiString); override;
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procedure SetViewParams(APaperSize: Integer;
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APaperWidth, APaperHeight: Extended;
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AOrientation: TPrinterOrientation); override;
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procedure SetPrintParams(APaperSize: Integer;
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APaperWidth, APaperHeight: Extended; AOrientation: TPrinterOrientation;
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ABin, ADuplex, ACopies: Integer); override;
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procedure PropertiesDlg; override;
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function ShowPrintDialog: Boolean; override;
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function UpdateDeviceCaps: Boolean;
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property DeviceMode: PDeviceMode read FMode;
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end;
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TfrxPrinters = class(TfrxCustomPrinters)
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protected
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function GetDefaultPrinter: String; override;
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public
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constructor Create;
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destructor Destroy; override;
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procedure FillPrinters; override;
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end;
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TfrxPrinterCanvas = class(TCanvas)
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{$IFNDEF FMX}
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private
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FPrinter: TfrxCustomPrinter;
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procedure UpdateFont;
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public
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procedure Changing; override;
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{$ENDIF}
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end;
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function frxGetPaperDimensions(PaperSize: Integer; var Width, Height: Extended): Boolean;
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function ActualfrxPrinterClass : TfrxCustomPrintersClass;
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implementation
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uses
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FMX.frxUtils, FMX.frxRes, FMX.frxFMX;
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type
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TPaperInfo = {packed} record
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Typ: Integer;
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Name: String;
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X, Y: Integer;
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end;
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const
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PAPERCOUNT = 66;
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PaperInfo: array[0..PAPERCOUNT - 1] of TPaperInfo = (
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(Typ:1; Name: ''; X:2159; Y:2794),
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(Typ:2; Name: ''; X:2159; Y:2794),
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(Typ:3; Name: ''; X:2794; Y:4318),
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(Typ:4; Name: ''; X:4318; Y:2794),
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(Typ:5; Name: ''; X:2159; Y:3556),
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(Typ:6; Name: ''; X:1397; Y:2159),
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(Typ:7; Name: ''; X:1842; Y:2667),
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(Typ:8; Name: ''; X:2970; Y:4200),
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(Typ:9; Name: ''; X:2100; Y:2970),
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(Typ:10; Name: ''; X:2100; Y:2970),
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(Typ:11; Name: ''; X:1480; Y:2100),
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(Typ:12; Name: ''; X:2500; Y:3540),
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(Typ:13; Name: ''; X:1820; Y:2570),
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(Typ:14; Name: ''; X:2159; Y:3302),
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(Typ:15; Name: ''; X:2150; Y:2750),
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(Typ:16; Name: ''; X:2540; Y:3556),
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(Typ:17; Name: ''; X:2794; Y:4318),
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(Typ:18; Name: ''; X:2159; Y:2794),
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(Typ:19; Name: ''; X:984; Y:2254),
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(Typ:20; Name: ''; X:1048; Y:2413),
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(Typ:21; Name: ''; X:1143; Y:2635),
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(Typ:22; Name: ''; X:1207; Y:2794),
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(Typ:23; Name: ''; X:1270; Y:2921),
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(Typ:24; Name: ''; X:4318; Y:5588),
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(Typ:25; Name: ''; X:5588; Y:8636),
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(Typ:26; Name: ''; X:8636; Y:11176),
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(Typ:27; Name: ''; X:1100; Y:2200),
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(Typ:28; Name: ''; X:1620; Y:2290),
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(Typ:29; Name: ''; X:3240; Y:4580),
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(Typ:30; Name: ''; X:2290; Y:3240),
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(Typ:31; Name: ''; X:1140; Y:1620),
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(Typ:32; Name: ''; X:1140; Y:2290),
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(Typ:33; Name: ''; X:2500; Y:3530),
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(Typ:34; Name: ''; X:1760; Y:2500),
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(Typ:35; Name: ''; X:1760; Y:1250),
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(Typ:36; Name: ''; X:1100; Y:2300),
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(Typ:37; Name: ''; X:984; Y:1905),
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(Typ:38; Name: ''; X:920; Y:1651),
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(Typ:39; Name: ''; X:3778; Y:2794),
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(Typ:40; Name: ''; X:2159; Y:3048),
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(Typ:41; Name: ''; X:2159; Y:3302),
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(Typ:42; Name: ''; X:2500; Y:3530),
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(Typ:43; Name: ''; X:1000; Y:1480),
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(Typ:44; Name: ''; X:2286; Y:2794),
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(Typ:45; Name: ''; X:2540; Y:2794),
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(Typ:46; Name: ''; X:3810; Y:2794),
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(Typ:47; Name: ''; X:2200; Y:2200),
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(Typ:50; Name: ''; X:2355; Y:3048),
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(Typ:51; Name: ''; X:2355; Y:3810),
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(Typ:52; Name: ''; X:2969; Y:4572),
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(Typ:53; Name: ''; X:2354; Y:3223),
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(Typ:54; Name: ''; X:2101; Y:2794),
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(Typ:55; Name: ''; X:2100; Y:2970),
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(Typ:56; Name: ''; X:2355; Y:3048),
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(Typ:57; Name: ''; X:2270; Y:3560),
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(Typ:58; Name: ''; X:3050; Y:4870),
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(Typ:59; Name: ''; X:2159; Y:3223),
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(Typ:60; Name: ''; X:2100; Y:3300),
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(Typ:61; Name: ''; X:1480; Y:2100),
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(Typ:62; Name: ''; X:1820; Y:2570),
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(Typ:63; Name: ''; X:3220; Y:4450),
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(Typ:64; Name: ''; X:1740; Y:2350),
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(Typ:65; Name: ''; X:2010; Y:2760),
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(Typ:66; Name: ''; X:4200; Y:5940),
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(Typ:67; Name: ''; X:2970; Y:4200),
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(Typ:68; Name: ''; X:3220; Y:4450));
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function frxGetPaperDimensions(PaperSize: Integer; var Width, Height: Extended): Boolean;
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var
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i: Integer;
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begin
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Result := False;
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for i := 0 to PAPERCOUNT - 1 do
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if PaperInfo[i].Typ = PaperSize then
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begin
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Width := PaperInfo[i].X / 10;
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Height := PaperInfo[i].Y / 10;
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Result := True;
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break;
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end;
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end;
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{$IFNDEF FMX}
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{ TfrxPrinterCanvas }
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procedure TfrxPrinterCanvas.Changing;
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begin
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inherited;
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UpdateFont;
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end;
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procedure TfrxPrinterCanvas.UpdateFont;
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var
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FontSize: Integer;
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begin
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if FPrinter.DPI.Y <> Font.PixelsPerInch then
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begin
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FontSize := Font.Size;
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Font.PixelsPerInch := FPrinter.DPI.Y;
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Font.Size := FontSize;
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end;
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end;
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{$ENDIF}
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destructor TfrxPrinter.Destroy;
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begin
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if Assigned(FOldWinPrinter) then
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SetPrinter(FOldWinPrinter);
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FreeDevMode;
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FWinPrinter.Free;
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inherited;
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end;
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procedure TfrxPrinter.Init;
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procedure FillPapers;
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var
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i, PaperSizesCount: Integer;
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PaperSizes: array[0..255] of Word;
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PaperNames: PChar;
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begin
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FillChar(PaperSizes, SizeOf(PaperSizes), 0);
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PaperSizesCount := DeviceCapabilities(PChar(FName), PChar(FPort), DC_PAPERS, @PaperSizes, FMode);
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GetMem(PaperNames, PaperSizesCount * 64 * sizeof(char));
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DeviceCapabilities(PChar(FName), PChar(FPort), DC_PAPERNAMES, PaperNames, FMode);
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for i := 0 to PaperSizesCount - 1 do
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if PaperSizes[i] <> 256 then
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FPapers.AddObject(StrPas(PWideChar(PaperNames + i * 64)), Pointer(PaperSizes[i]));
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FreeMem(PaperNames, PaperSizesCount * 64 * sizeof(char));
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end;
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procedure FillBins;
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var
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i, BinsCount: Integer;
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BinNumbers: array[0..255] of Word;
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BinNames: PChar;
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begin
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FillChar(BinNumbers, SizeOf(BinNumbers), 0);
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BinsCount := DeviceCapabilities(PChar(FName), PChar(FPort), DC_BINS, @BinNumbers[0], FMode);
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GetMem(BinNames, BinsCount * 24 * sizeof(char));
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try
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DeviceCapabilities(PChar(FName), PChar(FPort), DC_BINNAMES, BinNames, FMode);
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except
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end;
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for i := 0 to BinsCount - 1 do
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if BinNumbers[i] <> DMBIN_AUTO then
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FBins.AddObject(StrPas(PwideChar(BinNames + i * 24)), Pointer(BinNumbers[i]));
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FreeMem(BinNames, BinsCount * 24 * sizeof(char));
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end;
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begin
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if FInitialized then Exit;
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CreateDevMode;
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if FDeviceMode = 0 then Exit;
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RecreateDC;
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if not UpdateDeviceCaps then
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begin
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FreeDevMode;
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Exit;
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end;
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FDefPaper := FMode.dmPaperSize;
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FDefBin := FMode.dmDefaultSource;
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FDefDuplex := FMode.dmDuplex;
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FPaper := FDefPaper;
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FDefPaperWidth := FPaperWidth;
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FDefPaperHeight := FPaperHeight;
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if FMode.dmOrientation = DMORIENT_PORTRAIT then
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FDefOrientation := poPortrait else
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FDefOrientation := poLandscape;
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FOrientation := FDefOrientation;
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FillPapers;
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FillBins;
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FBin := -1;
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FDuplex := -1;
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FInitialized := True;
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FOldWinPrinter := nil;
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end;
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procedure TfrxPrinter.Abort;
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begin
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AbortDoc(FDC);
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EndDoc;
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end;
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procedure TfrxPrinter.BeginDoc;
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var
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DocInfo: TDocInfo;
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begin
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FPrinting := True;
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FillChar(DocInfo, SizeOf(DocInfo), 0);
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DocInfo.cbSize := SizeOf(DocInfo);
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if FTitle <> '' then
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DocInfo.lpszDocName := PChar(FTitle)
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else DocInfo.lpszDocName := PChar('Fast Report Document');
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if FFileName <> '' then
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DocInfo.lpszOutput := PChar(FFileName);
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RecreateDC;
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StartDoc(FDC, DocInfo);
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end;
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procedure TfrxPrinter.BeginPage;
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begin
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StartPage(FDC);
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{$IFDEF DELPHI28}
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Canvas.BeginScene;
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{$ENDIF}
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end;
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procedure TfrxPrinter.EndDoc;
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var
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Saved8087CW: Word;
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begin
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Saved8087CW := Default8087CW;
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Set8087CW($133F);
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try
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Winapi.Windows.EndDoc(FDC);
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except
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end;
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Set8087CW(Saved8087CW);
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FPrinting := False;
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RecreateDC;
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FBin := -1;
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FDuplex := -1;
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FMode.dmFields := FMode.dmFields or DM_DEFAULTSOURCE or DM_DUPLEX;
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FMode.dmDefaultSource := FDefBin;
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FMode.dmDuplex := FDefDuplex;
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if FCanvas <> nil then
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FCanvas.Free;
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FDC := ResetDC(FDC, FMode^);
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TFakePrinterWin(FWinPrinter).FDC := FDC;
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{$IFNDEF Delphi17}
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FCanvas := DefaultCanvasClass.CreateFromPrinter(FWinPrinter);
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{$ELSE}
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FCanvas := TCanvasManager.CreateFromPrinter(FWinPrinter);
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{$ENDIF}
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FOnChangedFont := THackCanvas(FCanvas).FFont.OnChanged;
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THackCanvas(FCanvas).FFont.OnChanged := FontChanged;
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SetPrinter(FOldWinPrinter);
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FOldWinPrinter := nil;
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end;
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procedure TfrxPrinter.EndPage;
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begin
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Winapi.Windows.EndPage(FDC);
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{$IFDEF Delphi28}
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Canvas.EndScene;
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{$ENDIF}
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end;
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procedure TfrxPrinter.BeginRAWDoc;
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var
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DocInfo1: TDocInfo1;
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begin
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RecreateDC;
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DocInfo1.pDocName := PChar(FTitle);
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DocInfo1.pOutputFile := nil;
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DocInfo1.pDataType := 'RAW';
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StartDocPrinter(FHandle, 1, @DocInfo1);
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StartPagePrinter(FHandle);
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end;
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procedure TfrxPrinter.EndRAWDoc;
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begin
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EndPagePrinter(FHandle);
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EndDocPrinter(FHandle);
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end;
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procedure TfrxPrinter.WriteRAWDoc(const buf: AnsiString);
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var
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N: DWORD;
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begin
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WritePrinter(FHandle, PAnsiChar(buf), Length(buf), N);
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end;
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constructor TfrxPrinter.Create(const AName, APort: String);
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begin
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inherited Create(AName, APort);
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FWinPrinter := TFakePrinterWin.Create;
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end;
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procedure TfrxPrinter.CreateDevMode;
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var
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bufSize: Integer;
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begin
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if OpenPrinter(PChar(FName), FHandle, nil) then
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begin
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bufSize := DocumentProperties(0, FHandle, PChar(FName), nil, nil, 0);
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if bufSize > 0 then
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begin
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FDeviceMode := GlobalAlloc(GHND, bufSize);
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if FDeviceMode <> 0 then
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begin
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FMode := GlobalLock(FDeviceMode);
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if DocumentProperties(0, FHandle, PChar(FName), FMode^, FMode^,
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DM_OUT_BUFFER) < 0 then
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begin
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GlobalUnlock(FDeviceMode);
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GlobalFree(FDeviceMode);
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FDeviceMode := 0;
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FMode := nil;
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end
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end;
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end;
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end;
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end;
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procedure TfrxPrinter.FontChanged(Sender: TObject);
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begin
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if Assigned(FOnChangedFont) then
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FOnChangedFont(Sender);
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//if FDPI.Y <> FCanvas.Font.PixelsPerInch then
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begin
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//FontSize := Round(FCanvas.Font.Size);
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///Font.PixelsPerInch := FPrinter.DPI.Y;
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//FCanvas.Font.Size := MulDiv(FontSize, DPI.Y, 72)
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end;
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end;
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procedure TfrxPrinter.FreeDevMode;
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begin
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//FCanvas.Handle := 0;
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if FDC <> 0 then
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DeleteDC(FDC);
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if FHandle <> 0 then
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ClosePrinter(FHandle);
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if FDeviceMode <> 0 then
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begin
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GlobalUnlock(FDeviceMode);
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GlobalFree(FDeviceMode);
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end;
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FDeviceMode := 0;
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FDC := 0;
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FHandle := 0;
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if FCanvas <> nil then
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FCanvas.Free;
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end;
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procedure TfrxPrinter.RecreateDC;
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begin
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if FDC <> 0 then
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try
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DeleteDC(FDC);
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except
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end;
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FDC := 0;
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GetDC;
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end;
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procedure TfrxPrinter.GetDC;
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begin
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if FDC = 0 then
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begin
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if FPrinting then
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FDC := CreateDC(PChar(FDriver), PChar(FName), nil, FMode) else
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FDC := CreateIC(PChar(FDriver), PChar(FName), nil, FMode);
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TFakePrinterWin(FWinPrinter).FDC := FDC;
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//FWinPrinter.PageHeight
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TFakePrinterWin(FWinPrinter).FState := TPrinterState.psHandleDC;
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{$IFNDEF Delphi17}
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if FCanvas <> nil then
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FCanvas.CreateFromPrinter(FWinPrinter)
|
|
else
|
|
FCanvas := DefaultCanvasClass.CreateFromPrinter(FWinPrinter);
|
|
{$ELSE}
|
|
if FCanvas <> nil then
|
|
FreeAndNil(FCanvas);
|
|
|
|
FCanvas := TCanvasManager.CreateFromPrinter(FWinPrinter);
|
|
{$ENDIF}
|
|
FOnChangedFont := THackCanvas(FCanvas).FFont.OnChanged;
|
|
THackCanvas(FCanvas).FFont.OnChanged := FontChanged;
|
|
{$IFDEF Delphi28}
|
|
FCanvas.SetSize(Round(FPaperWidth * FDPI.X / 25.4), Round(FPaperHeight * FDPI.Y / 25.4));
|
|
{$ENDIF}
|
|
|
|
// FDC := THackPrinterWin(FWinPrinter).FDC;
|
|
//
|
|
// THackPrinterWin(FWinPrinter).SetState(TPrinterState.psNoHandle);
|
|
// THackPrinterWin(FWinPrinter).SetState(TPrinterState.psHandleDC);
|
|
// // on a second document printing process, the canvas must reconnect its
|
|
// // underlying objects to the new DC
|
|
// THackPrinterWin(FWinPrinter).Canvas.CreateFromPrinter(FWinPrinter);
|
|
// THackPrinterWin(FWinPrinter).SetCanvasDefaultSettings;
|
|
// FCanvas := THackPrinterWin(FWinPrinter).Canvas;
|
|
// FDC := THackPrinterWin(FWinPrinter).FDC;
|
|
// FHandle := THackPrinterWin(FWinPrinter).FPrinterHandle;
|
|
// FMode := THackPrinterWin(FWinPrinter).FDevMode;
|
|
// FDeviceMode := THackPrinterWin(FWinPrinter).FDeviceMode;
|
|
|
|
//FCanvas.Handle := FDC;
|
|
//FCanvas.Refresh;
|
|
//FCanvas.UpdateFont;
|
|
end;
|
|
end;
|
|
|
|
procedure TfrxPrinter.SetViewParams(APaperSize: Integer;
|
|
APaperWidth, APaperHeight: Extended; AOrientation: TPrinterOrientation);
|
|
begin
|
|
if APaperSize <> 256 then
|
|
begin
|
|
FMode.dmFields := DM_PAPERSIZE or DM_ORIENTATION;
|
|
FMode.dmPaperSize := APaperSize;
|
|
if AOrientation = poPortrait then
|
|
FMode.dmOrientation := DMORIENT_PORTRAIT else
|
|
FMode.dmOrientation := DMORIENT_LANDSCAPE;
|
|
RecreateDC;
|
|
if not UpdateDeviceCaps then Exit;
|
|
end
|
|
else
|
|
begin
|
|
// copy the margins from A4 paper
|
|
SetViewParams(DMPAPER_A4, 0, 0, AOrientation);
|
|
FPaperHeight := APaperHeight;
|
|
FPaperWidth := APaperWidth;
|
|
end;
|
|
|
|
FPaper := APaperSize;
|
|
FOrientation := AOrientation;
|
|
end;
|
|
|
|
function TfrxPrinter.ShowPrintDialog: Boolean;
|
|
begin
|
|
Result := False;
|
|
end;
|
|
|
|
procedure TfrxPrinter.SetPrintParams(APaperSize: Integer;
|
|
APaperWidth, APaperHeight: Extended; AOrientation: TPrinterOrientation;
|
|
ABin, ADuplex, ACopies: Integer);
|
|
begin
|
|
FMode.dmFields := FMode.dmFields or DM_PAPERSIZE or DM_ORIENTATION or DM_COPIES
|
|
or DM_DEFAULTSOURCE;
|
|
|
|
|
|
if APaperSize = 256 then
|
|
begin
|
|
FMode.dmFields := FMode.dmFields or DM_PAPERLENGTH or DM_PAPERWIDTH;
|
|
if AOrientation = poLandscape then
|
|
begin
|
|
FMode.dmPaperLength := Round(APaperWidth * 10);
|
|
FMode.dmPaperWidth := Round(APaperHeight * 10);
|
|
end
|
|
else
|
|
begin
|
|
FMode.dmPaperLength := Round(APaperHeight * 10);
|
|
FMode.dmPaperWidth := Round(APaperWidth * 10);
|
|
end;
|
|
end
|
|
else
|
|
begin
|
|
FMode.dmPaperLength := 0;
|
|
FMode.dmPaperWidth := 0;
|
|
end;
|
|
|
|
FMode.dmPaperSize := APaperSize;
|
|
if AOrientation = poPortrait then
|
|
FMode.dmOrientation := DMORIENT_PORTRAIT else
|
|
FMode.dmOrientation := DMORIENT_LANDSCAPE;
|
|
|
|
FMode.dmCopies := ACopies;
|
|
if ABin = DMBIN_AUTO then
|
|
if FBin <> -1 then
|
|
ABin := FBin
|
|
else
|
|
ABin := DefBin;
|
|
FMode.dmDefaultSource := ABin;
|
|
|
|
if ADuplex = 0 then
|
|
ADuplex := FDefDuplex
|
|
else Inc(ADuplex);
|
|
if ADuplex = 4 then
|
|
ADuplex := DMDUP_SIMPLEX;
|
|
if FDuplex <> -1 then
|
|
ADuplex := FDuplex;
|
|
if ADuplex <> 1 then
|
|
FMode.dmFields := FMode.dmFields or DM_DUPLEX;
|
|
FMode.dmDuplex := ADuplex;
|
|
|
|
|
|
{ strange behaviour with GDI+ canvas
|
|
need to release canvas and all gdi+ objects before call ResetDC
|
|
otherwise it return error }
|
|
if FCanvas <> nil then
|
|
FCanvas.Free;
|
|
|
|
FDC := ResetDC(FDC, FMode^);
|
|
FDC := ResetDC(FDC, FMode^); // needed for some printers
|
|
TFakePrinterWin(FWinPrinter).FDC := FDC;
|
|
{$IFNDEF Delphi17}
|
|
FCanvas := DefaultCanvasClass.CreateFromPrinter(FWinPrinter);
|
|
{$ELSE}
|
|
FCanvas := TCanvasManager.CreateFromPrinter(FWinPrinter);
|
|
{$ENDIF}
|
|
FWinPrinter.FCanvas := FCanvas;
|
|
if {PrinterAssigned and} not Assigned(FOldWinPrinter) then
|
|
FOldWinPrinter := TPrinterWin(Printer);
|
|
SetPrinter(FWinPrinter);
|
|
FOnChangedFont := THackCanvas(FCanvas).FFont.OnChanged;
|
|
THackCanvas(FCanvas).FFont.OnChanged := FontChanged;
|
|
|
|
|
|
//FCanvas.Refresh;
|
|
if not UpdateDeviceCaps then Exit;
|
|
FPaper := APaperSize;
|
|
FOrientation := AOrientation;
|
|
{$IFDEF Delphi28}
|
|
FCanvas.SetSize(Round(FPaperWidth * FDPI.X / 25.4), Round(FPaperHeight * FDPI.Y / 25.4));
|
|
{$ENDIF}
|
|
end;
|
|
|
|
function TfrxPrinter.UpdateDeviceCaps: Boolean;
|
|
begin
|
|
Result := True;
|
|
if FDC = 0 then GetDC;
|
|
|
|
FDPI := Point(GetDeviceCaps(FDC, LOGPIXELSX), GetDeviceCaps(FDC, LOGPIXELSY));
|
|
if (FDPI.X = 0) or (FDPI.Y = 0) then
|
|
begin
|
|
Result := False;
|
|
frxErrorMsg('Printer selected is not valid');
|
|
Exit;
|
|
end;
|
|
FPaperHeight := Round(GetDeviceCaps(FDC, PHYSICALHEIGHT) / FDPI.Y * 25.4);
|
|
FPaperWidth := Round(GetDeviceCaps(FDC, PHYSICALWIDTH) / FDPI.X * 25.4);
|
|
FLeftMargin := Round(GetDeviceCaps(FDC, PHYSICALOFFSETX) / FDPI.X * 25.4);
|
|
FTopMargin := Round(GetDeviceCaps(FDC, PHYSICALOFFSETY) / FDPI.Y * 25.4);
|
|
FRightMargin := FPaperWidth - Round(GetDeviceCaps(FDC, HORZRES) / FDPI.X * 25.4) - FLeftMargin;
|
|
FBottomMargin := FPaperHeight - Round(GetDeviceCaps(FDC, VERTRES) / FDPI.Y * 25.4) - FTopMargin;
|
|
end;
|
|
|
|
procedure TfrxPrinter.PropertiesDlg;
|
|
var
|
|
h: THandle;
|
|
PrevDuplex: Integer;
|
|
begin
|
|
PrevDuplex := FMode.dmDuplex;
|
|
//if Screen.ActiveForm <> nil then
|
|
// h := Screen.ActiveForm.Handle else
|
|
h := 0;
|
|
if DocumentProperties(h, FHandle, PChar(FName), FMode^,
|
|
FMode^, DM_IN_BUFFER or DM_OUT_BUFFER or DM_IN_PROMPT) > 0 then
|
|
begin
|
|
FBin := FMode.dmDefaultSource;
|
|
if PrevDuplex <> FMode.dmDuplex then
|
|
FDuplex := FMode.dmDuplex;
|
|
RecreateDC;
|
|
end;
|
|
end;
|
|
|
|
{ TfrxPrinters }
|
|
|
|
constructor TfrxPrinters.Create;
|
|
begin
|
|
Inherited;
|
|
end;
|
|
|
|
destructor TfrxPrinters.Destroy;
|
|
begin
|
|
inherited;
|
|
end;
|
|
|
|
|
|
|
|
function TfrxPrinters.GetDefaultPrinter: String;
|
|
var
|
|
prnName: array[0..255] of Char;
|
|
begin
|
|
GetProfileString('windows', 'device', '', prnName, 255);
|
|
Result := Copy(prnName, 1, Pos(',', prnName) - 1);
|
|
end;
|
|
|
|
|
|
procedure TfrxPrinters.FillPrinters;
|
|
var
|
|
i, j: Integer;
|
|
Buf, prnInfo: PByte;
|
|
Flags, bufSize, prnCount: DWORD;
|
|
Level: Byte;
|
|
sl: TStringList;
|
|
|
|
procedure AddPrinter(ADevice, APort: String);
|
|
begin
|
|
FPrinterList.Add(TfrxPrinter.Create(ADevice, APort));
|
|
FPrinters.Add(ADevice);
|
|
end;
|
|
|
|
begin
|
|
Clear;
|
|
if Win32Platform = VER_PLATFORM_WIN32_NT then
|
|
begin
|
|
Flags := PRINTER_ENUM_CONNECTIONS or PRINTER_ENUM_LOCAL;
|
|
Level := 4;
|
|
end
|
|
else
|
|
begin
|
|
Flags := PRINTER_ENUM_LOCAL;
|
|
Level := 5;
|
|
end;
|
|
|
|
bufSize := 0;
|
|
EnumPrinters(Flags, nil, Level, nil, 0, bufSize, prnCount);
|
|
if bufSize = 0 then Exit;
|
|
|
|
GetMem(Buf, bufSize);
|
|
try
|
|
|
|
if not EnumPrinters(Flags, nil, Level, PByte(Buf), bufSize, bufSize, prnCount) then
|
|
Exit;
|
|
prnInfo := Buf;
|
|
for i := 0 to prnCount - 1 do
|
|
if Level = 4 then
|
|
with PPrinterInfo4(prnInfo)^ do
|
|
begin
|
|
AddPrinter(pPrinterName, '');
|
|
Inc(prnInfo, SizeOf(TPrinterInfo4));
|
|
end
|
|
else
|
|
with PPrinterInfo5(prnInfo)^ do
|
|
begin
|
|
sl := TStringList.Create;
|
|
frxSetCommaText(pPortName, sl, ',');
|
|
|
|
for j := 0 to sl.Count - 1 do
|
|
AddPrinter(pPrinterName, sl[j]);
|
|
|
|
sl.Free;
|
|
Inc(prnInfo, SizeOf(TPrinterInfo5));
|
|
end;
|
|
|
|
finally
|
|
FreeMem(Buf, bufSize);
|
|
end;
|
|
end;
|
|
|
|
|
|
|
|
|
|
{ THackPrinterWin }
|
|
|
|
procedure TFakePrinterWin.ActivePrinterChanged;
|
|
begin
|
|
//do nothing
|
|
end;
|
|
|
|
constructor TFakePrinterWin.Create;
|
|
begin
|
|
//inherited;
|
|
inherited;
|
|
end;
|
|
|
|
destructor TFakePrinterWin.Destroy;
|
|
begin
|
|
FCanvas := nil;
|
|
inherited;
|
|
//inherited;
|
|
end;
|
|
|
|
procedure TFakePrinterWin.DoAbortDoc;
|
|
begin
|
|
//do nothing
|
|
end;
|
|
|
|
procedure TFakePrinterWin.DoBeginDoc;
|
|
begin
|
|
//do nothing
|
|
end;
|
|
|
|
procedure TFakePrinterWin.DoEndDoc;
|
|
begin
|
|
//do nothing
|
|
end;
|
|
|
|
procedure TFakePrinterWin.DoNewPage;
|
|
begin
|
|
//do nothing
|
|
|
|
end;
|
|
|
|
function TFakePrinterWin.GetCanvas: TCanvas;
|
|
begin
|
|
Result := FCanvas;
|
|
end;
|
|
|
|
function TFakePrinterWin.GetCapabilities: TPrinterCapabilities;
|
|
begin
|
|
Result := FCapabilities;
|
|
end;
|
|
|
|
function TFakePrinterWin.GetNumCopies: Integer;
|
|
begin
|
|
Result := 0;
|
|
//do nothing
|
|
end;
|
|
|
|
function TFakePrinterWin.GetOrientation: TPrinterOrientation;
|
|
begin
|
|
Result := TPrinterOrientation.poPortrait;
|
|
//do nothing
|
|
end;
|
|
|
|
function TFakePrinterWin.GetPageHeight: Integer;
|
|
begin
|
|
Result := FPageHeight;
|
|
end;
|
|
|
|
function TFakePrinterWin.GetPageWidth: Integer;
|
|
begin
|
|
Result := FPageWidth;
|
|
end;
|
|
|
|
procedure TFakePrinterWin.RefreshFonts;
|
|
begin
|
|
//do nothing
|
|
end;
|
|
|
|
procedure TFakePrinterWin.RefreshPrinterDevices;
|
|
begin
|
|
//do nothing
|
|
end;
|
|
|
|
procedure TFakePrinterWin.SetDefaultPrinter;
|
|
begin
|
|
//do nothing
|
|
end;
|
|
|
|
procedure TFakePrinterWin.SetNumCopies(Value: Integer);
|
|
begin
|
|
//do nothing
|
|
end;
|
|
|
|
procedure TFakePrinterWin.SetOrientation(Value: TPrinterOrientation);
|
|
begin
|
|
//do nothing
|
|
end;
|
|
|
|
function ActualfrxPrinterClass : TfrxCustomPrintersClass;
|
|
begin
|
|
Result := TfrxPrinters;
|
|
end;
|
|
|
|
initialization
|
|
|
|
finalization
|
|
|
|
end.
|
|
|