[Delphi] 設定Windows作業系統預設印表機

Procedure SetDefaultPrinter(xPrintName: string);
var

  buffer: array[0..255] of Char;
  name: string;
begin

  name := xPrintName;
  if AnsiPos(',', name) = 0 then begin
    name := name + ',';
  end;

  StrPCopy(buffer, name);
  WriteProfileString('windows', 'device', buffer);
  StrCopy(buffer, 'windows');
  SendMessage(HWND_BROADCAST, WM_WININICHANGE, 0, Longint(@buffer));
end;

參考自-Solnone 螺旋旅人-Delphi 設定預設印表機