?? opensemaphore.htm
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<td width="100%" height="16">OpenSemaphore</td>
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<td width="102%" colspan="3">VB聲明</td>
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<td width="102%" colspan="3">Declare Function OpenSemaphore Lib "kernel32" Alias
"OpenSemaphoreA" (ByVal dwDesiredAccess As Long, ByVal bInheritHandle As Long,
ByVal lpName As String) As Long</td>
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<td width="102%" colspan="3">說明</td>
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<td width="102%" colspan="3">為現有的一個已命名信號機對象創建一個新句柄</td>
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<td width="102%" colspan="3">返回值</td>
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<td width="102%" colspan="3">Long，如執行成功，返回對象句柄；零表示失敗。會設置<a
href="GetLastError.htm">GetLastError</a></td>
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<td width="102%" colspan="3">參數表</td>
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<td width="25%">參數</td>
<td width="77%" colspan="2">類型及說明</td>
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<td width="25%" rowspan="4">dwDesiredAccess</td>
<td width="77%" colspan="2">Long，下述常數之一：</td>
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<td width="37%">SEMAPHORE_ALL_ACCESS</td>
<td width="38%">要求對事件對象的完全訪問</td>
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<td width="37%">SEMAPHORE_MODIFY_STATE</td>
<td width="38%">允許使用<a href="ReleaseSemaphore.htm">ReleaseSemaphore</a>函數</td>
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<td width="37%">SYNCHRONIZE</td>
<td width="38%">允許同步使用信號機對象</td>
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<td width="25%">bInheritHandle</td>
<td width="77%" colspan="2">Long，如果允許子進程繼承句柄，則設為TRUE</td>
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<td width="25%">lpName</td>
<td width="77%" colspan="2">String，指定要打開的對象的名字</td>
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<td width="102%" colspan="3">注解</td>
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<td width="102%" colspan="3"><p align="left">一旦不再需要，注意一定要用<a
href="CloseHandle.htm">CloseHandle</a>關閉信號機句柄。如對象的所有句柄都已關閉，那么對象也會刪除</td>
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