?? getclassword.htm
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<td width="100%" height="16"><a name="GetClassWord">GetClassWord</a></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 GetClassWord Lib "user32" Alias
"GetClassWord" (ByVal hwnd As Long, ByVal nIndex 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">為窗口類取得一個整數變量</td>
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<td width="100%" colspan="2">返回值</td>
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<td width="100%" colspan="2">Long，由nIndex決定。零表示出錯。會設置<a
href="GetLastError.htm">GetLastError</a></td>
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<td width="100%" colspan="2">參數表</td>
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<td width="25%">參數</td>
<td width="75%">類型及說明</td>
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<td width="25%">hwnd</td>
<td width="75%">Long，欲獲得類信息的那個窗口的句柄</td>
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<td width="25%">nIndex</td>
<td width="75%">Long，類信息的正偏移量；這些信息是該類的額外字節中分配的</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">我的迷惑：在某參考書上是這樣聲明的：Declare
Function GetClassWord% Lib "user32" (ByVal hwnd As Long, ByVal nIndex As Long)，即函數的返回值為Integer，而從vb自帶的api查看器中得到的聲明表明返回值是個Long類型</td>
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<td width="100%"><p align="right"><a href="#GetClassWord">Top</a></td>
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