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| unit FilePrinterSetup;
interface
uses
SysUtils, Classes, Dialogs,
printers, windows, WinSpool;
type
TFilePrinterSetupException = procedure(Sender :TObject; Msg :string) of object;
TFilePrinterSetup = class(TPrinterSetupDialog)
private
FFileName: TFileName;
FOnException: TFilePrinterSetupException;
{ Déclarations privées }
protected
{ Déclarations protégées }
public
{ Déclarations publiques }
function Load(aFileName :TFileName = ''; aExecute :boolean = FALSE) :boolean;
procedure Save(aFileName :TFileName = '');
function Execute: Boolean; override;
published
property FileName :TFileName read FFileName write FFileName;
property OnException :TFilePrinterSetupException read FOnException write FOnException;
end;
TPrinterSetup = class
private
Device, Driver, Port: array[0..CCHDEVICENAME] of char;
DeviceMode: THandle;
procedure Refresh;
protected
public
procedure SaveSetup(FileName: TFilename);
procedure LoadSetup(FileName: TFilename);
end;
TPrinterConfig = record
ADevice, ADriver, APort: array[0..CCHDEVICENAME] of char;
SizeOfDeviceMode: DWORD;
end;
procedure Register;
implementation
ResourceString
Err1 = 'Configuration de l''impression'#13#13'%s'#13'Mauvais type de fichier';
procedure TPrinterSetup.Refresh;
begin
Printer.GetPrinter(Device, Driver, Port, DeviceMode);
end;
procedure TPrinterSetup.SaveSetup(FileName: TFilename);
var
StubDevMode: TDeviceMode;
SetupPrinter: TPrinterConfig;
FPrinterHandle: THandle;
fFileConfig: file of TPrinterConfig;
fFileDevMode: file of Char;
pDevMode: PChar;
Contador: Integer;
begin
Refresh;
with SetupPrinter do
begin
StrLCopy(ADevice, Device, SizeOf(ADevice));
StrLCopy(ADriver, Driver, SizeOf(ADriver));
StrLCopy(APort, Port, SizeOf(APort));
OpenPrinter(Device, FPrinterHandle, nil);
SizeOfDeviceMode := DocumentProperties(0, FPrinterHandle, Device,
StubDevMode, StubDevMode, 0);
end;
AssignFile(fFileConfig, FileName);
ReWrite(fFileConfig);
Write(fFileConfig, SetupPrinter);
CloseFile(fFileConfig);
AssignFile(fFileDevMode, FileName);
Reset(fFileDevMode);
Seek(fFileDevMode, FileSize(fFileDevMode));
pDevMode := GlobalLock(DeviceMode);
for Contador := 0 to SetupPrinter.SizeOfDeviceMode - 1 do
begin
Write(fFileDevMode, pDevMode[Contador]);
end;
CloseFile(fFileDevMode);
GlobalUnLock(DeviceMode);
end;
procedure TPrinterSetup.LoadSetup(FileName: TFilename);
var
SetupPrinter: TPrinterConfig;
fFileConfig: file of TPrinterConfig;
fFileDevMode: file of Char;
ADeviceMode: THandle;
pDevMode: PChar;
Contador: Integer;
begin
if FileExists(FileName) then
begin
AssignFile(fFileConfig, FileName);
Reset(fFileConfig);
read(fFileConfig, SetupPrinter);
CloseFile(fFileConfig);
AssignFile(fFileDevMode, FileName);
Reset(fFileDevMode);
Seek(fFileDevMode, SizeOf(SetupPrinter));
ADeviceMode := GlobalAlloc(GHND, SetupPrinter.SizeOfDeviceMode);
pDevMode := GlobalLock(ADeviceMode);
for Contador := 0 to SetupPrinter.SizeOfDeviceMode - 1 do
begin
read(fFileDevMode, char(pDevMode[Contador]));
end;
CloseFile(fFileDevMode);
GlobalUnLock(ADeviceMode);
Printer.SetPrinter(SetupPrinter.ADevice, SetupPrinter.ADriver,
SetupPrinter.APort, ADeviceMode);
end;
end;
procedure Register;
begin
RegisterComponents('Samples', [TFilePrinterSetup]);
end;
{ TFilePrinterSetup }
function TFilePrinterSetup.Execute: Boolean;
begin
if inherited Execute then
Save;
end;
function TFilePrinterSetup.Load(aFileName: TFileName; aExecute :boolean) :boolean;
var
PrinterSetup: TPrinterSetup;
begin
if aFileName <> '' then
FileName := aFileName;
PrinterSetup := TPrinterSetup.Create;
try
try
PrinterSetup.LoadSetup(FileName);
except
if Assigned(FOnException) then
begin
FOnException(Self, Format(Err1, [FileName]));
aExecute := FALSE;
end
else
raise Exception.Create(Format(Err1, [FileName]));
end;
finally
PrinterSetup.Free;
end;
if aExecute
then Result := Execute
else Result := TRUE;
end;
procedure TFilePrinterSetup.Save(aFileName: TFileName);
var
PrinterSetup: TPrinterSetup;
begin
if aFileName <> '' then
FileName := aFileName;
if FileName <> '' then
begin
PrinterSetup := TPrinterSetup.Create;
PrinterSetup.SaveSetup(FileName);
PrinterSetup.Free;
end;
end;
end. |
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