?? findfirstprinterchangenotification.htm
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<td width="100%" height="16">FindFirstPrinterChangeNotification</td>
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<td width="100%" colspan="2">VB聲明</td>
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<td width="100%" colspan="2">Declare Function FindFirstPrinterChangeNotification& Lib
"winspool.dll" (ByVal hPrinter As Long, ByVal fdwFlags As Long, ByVal fdwOptions
As Long, pPrinterNotifyOptions As Byte)</td>
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<td width="100%" colspan="2">說明</td>
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<td width="100%" colspan="2">創建一個新的改變通告對象，以便我們注意打印機狀態的各種變化</td>
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<td width="100%" colspan="2">返回值</td>
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<td width="100%" colspan="2">Long，執行成功則返回改變通告對象的句柄。INVALID_HANDLE_VALUE表示失敗。會設置<a
href="GetLastError.htm">GetLastError</a></td>
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<td width="100%" colspan="2">參數表</td>
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<td width="25%">參數</td>
<td width="75%">類型及說明</td>
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<td width="25%">hPrinter</td>
<td width="75%">Long，一個已打開的打印機對象的句柄（用OpenPrinter獲得）</td>
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<td width="25%">fdwFlags</td>
<td width="75%">Long，來自API32.TXT文件的、帶有PRINTER_CHANGE_??前綴的某個常數，它們對要觀察的對象進行了描述。如pPrinterNotifyOptions不為零，那么可將這個參數設為零</td>
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<td width="25%">fdwOptions</td>
<td width="75%">Long，保留，設為零</td>
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<td width="25%">pPrinterNotifyOptions</td>
<td width="75%">Byte，指定一個緩沖區，其中包含了一個PRINTER_NOTIFY_OPTIONS結構。而這個結構又包含了指向一個或多個PRINTER_NOTIFY_OPTIONS_TYPE結構的指針。可將這個參數設為零（將聲明方式改為ByVal
As Long并傳遞零值），以便用fdwFlags字段指定想觀察的變化</td>
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<td width="100%" colspan="2">適用平臺</td>
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<td width="100%" colspan="2"><p align="left">Windows NT</td>
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<td width="100%" colspan="2">其他</td>
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<td width="100%" colspan="2">以下的聲明是從VB的API文本查看器里復制的：<br>
Declare Function FindFirstPrinterChangeNotification Lib "winspool.drv" Alias
"FindFirstPrinterChangeNotification" (ByVal hPrinter As Long, ByVal fdwFlags As
Long, ByVal fdwOptions As Long, ByVal pPrinterNotifyOptions As String) As Long</td>
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<td width="100%"><p align="right">Top</td>
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