在WIN2000下如何检测打印机是否打开电源，且联机，我用IO.DLL去侦测，只能 检测到是否开电源，但没有办法去检测打开电源后是否联机？我用的是BS-300ks打印机！ 下載: http://geekhideout.com/downloads/io.zip

bill_action您好:    試試看透過 GetPrinter() Windows API來偵測打印机的狀態 參考網頁(MSDN): http://msdn.microsoft.com/library/default.asp?url=/library/en-us/gdi/prntspol_1gky.asp    

The Printer object sometimes needs to be kicked to correctly load the selected printers device context:    // call this procedure before the BeginDoc
procedure ResetPrinter;
  var
    Device, Driver, Port: array[0..80] of Char;
    DevMode: THandle;
begin
  Printer.GetPrinter(Device, Driver, Port, DevMode);
  Printer.SetPrinter(Device, Driver, Port, 0) 
end; 

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