📄 enumforms.htm
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<td width="100%" height="16">EnumForms</td>
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<td width="100%" colspan="2">VB声明</td>
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<td width="100%" colspan="2">Declare Function EnumForms Lib "winspool.drv" Alias
"EnumFormsA" (ByVal hPrinter As Long, ByVal Level As Long, pForm As Byte, ByVal
cbBuf As Long, pcbNeeded As Long, pcReturned As Long) As Long</td>
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<td width="100%" colspan="2">说明</td>
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<td width="100%" colspan="2">枚举一台打印机可用的表单</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，零表示失败。会设置<a
href="GetLastError.htm">GetLastError</a></td>
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<td width="100%" colspan="2">参数表</td>
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<td width="25%">参数</td>
<td width="75%">类型及说明</td>
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<td width="25%">hPrinter</td>
<td width="75%">Long，一个已打开的打印机对象的句柄（用OpenPrinter获得）</td>
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<td width="25%">Level</td>
<td width="75%">Long，设为1</td>
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<td width="25%">pForm</td>
<td width="75%">Byte，一个包含<a href="FORM_INFO_1.htm">FORM_INFO_1</a>结构的缓冲区</td>
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<td width="25%">cbBuf</td>
<td width="75%">Long，pForm缓冲区中的字符数量</td>
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<td width="25%">pcbNeeded</td>
<td width="75%">Long，指向一个Long型变量的指针，该变量用于保存请求的缓冲区长度，或者实际读入的字节数量</td>
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<td width="25%">pcReturned</td>
<td width="75%">Long，载入缓冲区的结构数量（用于那些能返回多个结构的函数）</td>
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<td width="100%" colspan="2">适用平台</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">注解</td>
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<td width="100%" colspan="2">参考<a href="AddForm.htm">AddForm</a>函数，了解进一步的情况</td>
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