Save the printer setting to file

Problem/Question/Abstract:

How to save the printer setting to file and then load it

Answer:

Create a unit PrinterSetup and place code in this unit. Do the following to save the printer config to file

procedure TForm1.Button1Click(Sender: TObject);
var
PrinterSetup: TPrinterSetup
begin
PrinterSetup := TPrinterSetup.Create;
PrinterSetup.SaveSetup(FileName);
//where file name is a string to the location of the File ex.'c:\print.cfg'
PrinterSetup.Free;
end

PrinterSetup unit  code

unit PrinterSetup;

interface

uses
printers,
windows,
SysUtils,
Classes,
WinSpool;

type
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;

implementation

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;

end.