?? getwindowlong.htm
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<td width="100%" height="16"><a name="GetWindowLong">GetWindowLong</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 GetWindowLong Lib "user32" Alias
"GetWindowLongA" (ByVal hwnd As Long, ByVal nIndex As Long) As Long</td>
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<td width="102%" colspan="3">說明</td>
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<td width="102%" colspan="3">從指定窗口的結(jié)構中取得信息</td>
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<td width="102%" colspan="3">返回值</td>
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<td width="102%" colspan="3">Long，由nIndex決定。零表示出錯。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="3">參數(shù)表</td>
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<td width="25%">參數(shù)</td>
<td width="77%" colspan="2">類型及說明</td>
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<td width="25%">hwnd</td>
<td width="77%" colspan="2">Long，欲為其獲取信息的窗口的句柄</td>
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<td width="25%" rowspan="11">nIndex</td>
<td width="77%" colspan="2">Long，欲取回的信息，可以是下述任何一個常數(shù)：</td>
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<td width="37%">GWL_EXSTYLE</td>
<td width="38%">擴展窗口樣式</td>
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<td width="37%">GWL_STYLE</td>
<td width="38%">窗口樣式</td>
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<td width="37%">GWL_WNDPROC</td>
<td width="38%">該窗口的窗口函數(shù)的地址</td>
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<td width="37%">GWL_HINSTANCE</td>
<td width="38%">擁有窗口的實例的句柄</td>
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<td width="37%">GWL_HWNDPARENT</td>
<td width="38%">該窗口之父的句柄。不要用<a href="SetWindowWord.htm" tppabs="http://www.gxbcts.com/airfly/api/papi/SetWindowWord.htm">SetWindowWord</a>來改變這個值</td>
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<td width="37%">GWL_ID</td>
<td width="38%">對話框中一個子窗口的標識符</td>
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<td width="37%">GWL_USERDATA</td>
<td width="38%">含義由應用程序規(guī)定</td>
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<td width="37%">DWL_DLGPROC</td>
<td width="38%">這個窗口的對話框函數(shù)地址</td>
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<td width="37%">DWL_MSGRESULT</td>
<td width="38%">在對話框函數(shù)中處理的一條消息返回的值</td>
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<td width="37%">DWL_USER</td>
<td width="38%">含義由應用程序規(guī)定</td>
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<td width="100%"><p align="right"><a href="#GetWindowLong">Top</a></td>
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