?? beep.htm
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<td width="100%" height="16">Beep</td>
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<td width="102%" colspan="2">VB聲明</td>
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<td width="102%" colspan="2">Declare Function Beep Lib "kernel32" Alias
"Beep" (ByVal dwFreq As Long, ByVal dwDuration As Long) As Long</td>
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<td width="102%" colspan="2">說明</td>
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<td width="102%" colspan="2">用于生成簡單的聲音</td>
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<td width="102%" colspan="2">返回值</td>
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<td width="102%" colspan="2">Long，TRUE（非零）表示成功，否則返回零。會設置<a
href="GetLastError.htm" tppabs="http://www.gxbcts.com/airfly/api/papi/GetLastError.htm">GetLastError</a></td>
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<td width="102%" colspan="2">參數表</td>
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<td width="25%">參數</td>
<td width="77%">類型及說明</td>
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<td width="25%">dwFreq</td>
<td width="77%">Long，聲音頻率（從37Hz到32767Hz）。在windows95中忽略</td>
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<td width="25%">dwDuration</td>
<td width="77%">Long，聲音的持續時間，以毫秒為單位。如為-1，表示一直播放聲音，直到再次調用該函數為止。在windows95中會被忽略</td>
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<td width="102%" colspan="2">注解</td>
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<td width="102%" colspan="2"><p align="left">在windows95中，這個函數簡單的播放默認系統響鈴</td>
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