?? systemparametersinfo.htm
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<td width="100%" height="16"><a name="SystemParametersInfo, SystemParametersInfoByval">SystemParametersInfo,
SystemParametersInfoByval</a></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 SystemParametersInfo& Lib
"user32" Alias "SystemParametersInfoA" (ByVal uAction As Long, ByVal
uParam As Long, lpvParam As Any, ByVal fuWinIni As Long)<br>
Declare Function SystemParametersInfoByVal& Lib "user32" Alias
"SystemParametersInfoA" (ByVal uAction As Long, ByVal uParam As Long, ByVal
lpvParam As Any, ByVal fuWinIni As Long)</td>
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<td width="102%" colspan="3">說明</td>
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<td width="102%" colspan="3">允許獲取和設置數量眾多的windows系統參數</td>
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<td width="102%" colspan="3">返回值</td>
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<td width="102%" colspan="3">Long，非零表示成功，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%">uAction</td>
<td width="77%" colspan="2">Long，指定要設置的參數。參考<a href="uAction.htm">uAction常數表</a></td>
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<td width="25%">uParam</td>
<td width="77%" colspan="2">Long，參考<a href="uAction.htm">uAction常數表</a></td>
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<td width="25%">lpvParam</td>
<td width="77%" colspan="2">Any，按引用調用的Integer、Long和數據結構。對于String數據，請用SystemParametersInfoByval函數。具體用法參考<a
href="uAction.htm">uAction常數表</a></td>
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<td width="25%" rowspan="3">fuWinIni</td>
<td width="77%" colspan="2">Long，取決于不同的參數及操作系統，隨同這個函數設置的用戶配置參數保存在win.ini或注冊表里，或同時保存在這兩個地方。這個參數規定了在設置系統參數的時候，是否應更新用戶設置參數。可以是零（禁止更新），或下述任何一個常數：</td>
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<td width="37%">SPIF_UPDATEINIFILE</td>
<td width="38%">更新win.ini和（或）注冊表中的用戶配置文件</td>
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<td width="37%">SPIF_SENDWININICHANGE</td>
<td width="38%">倘若也設置了SPIF_UPDATEINIFILE，將一條WM_WININICHANGE消息發給所有應用程序。否則沒有作用。這調消息告訴應用程序已經改變了用戶配置設置</td>
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<td width="102%" colspan="3">注解</td>
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<td width="102%" colspan="3">在調用這個函數之前，特別要注意將lpvParam參數定義成正確的數據類型</td>
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<td width="100%"><p align="right"><a
href="#SystemParametersInfo, SystemParametersInfoByval">Top</a></td>
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