?? readprinter.htm
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<title>ReadPrinter</title>
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<td width="100%" height="16">ReadPrinter</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 ReadPrinter Lib "winspool.drv"
Alias "ReadPrinter" (ByVal hPrinter As Long, pBuf As Any, ByVal cdBuf As Long,
pNoBytesRead As Long) As Long</td>
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<td width="100%" colspan="2">說明</td>
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<td width="100%" colspan="2">從打印機(jī)讀入數(shù)據(jù)</td>
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<td width="100%" colspan="2">返回值</td>
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<td width="100%" colspan="2">Long，非零表示成功，零表示失敗。會(huì)設(shè)置<a
href="GetLastError.htm">GetLastError</a></td>
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<td width="100%" colspan="2">參數(shù)表</td>
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<td width="25%">參數(shù)</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(gè)已打開的打印機(jī)的句柄（用<a href="OpenPrinter.htm">OpenPrinter</a>獲得）</td>
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<td width="25%">pBuf</td>
<td width="75%">Any，指定一個(gè)緩沖區(qū)或結(jié)構(gòu)，用于裝載來自打印機(jī)的數(shù)據(jù)</td>
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<td width="25%">cdBuf</td>
<td width="75%">Long，欲讀入的緩沖區(qū)大小或字節(jié)數(shù)</td>
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<td width="25%">pNoBytesRead</td>
<td width="75%">Long，用于裝載實(shí)際讀取字節(jié)數(shù)的一個(gè)變量</td>
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<td width="100%" colspan="2">注解</td>
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<td width="100%" colspan="2"><p align="left">為使這個(gè)函數(shù)正常使用，端口必須是雙向的</td>
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<td width="100%"><p align="right">Top</td>
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