Delphi中获取打印机设备名和端口名

uses Printers;

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

procedure TForm1.Button1Click(Sender: TObject);
var
pDevice : pChar;
pDriver : pChar;
pPort : pChar;
hDMode : THandle;
begin
if PrintDialog1.Execute then begin
GetMem(pDevice, cchDeviceName);
GetMem(pDriver, MAX_PATH);
GetMem(pPort, MAX_PATH);
Printer.GetPrinter(pDevice, pDriver, pPort, hDMode);
if lStrLen(pDriver) = 0 then begin
GetProfileString(''''Devices'''', pDevice, '''''''', pDriver, MAX_PATH);
pDriver[pos('''','''', pDriver) - 1] := #0;
end;
if lStrLen(pPort) = 0 then begin
GetProfileString(''''Devices'''', pDevice, '''''''', pPort, MAX_PATH);
lStrCpy(pPort, @pPort[lStrLen(pPort) 2]);
end;
Memo1.Lines.Add(''''Device := '''' StrPas(pDevice));
Memo1.Lines.Add(''''Driver := '''' StrPas(pDriver));
Memo1.Lines.Add(''''Port := '''' StrPas(pPort));
FreeMem(pDevice, cchDeviceName);
FreeMem(pDriver, MAX_PATH);
FreeMem(pPort, MAX_PATH);
end;
end;

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